Vacuum formed conformable shoe

• US 5,617,650 A
• Filed: 02/27/1995
• Issued: 04/08/1997
• Est. Priority Date: 10/23/1992
• Status: Expired due to Fees

• Current Assignee: Tracy E. Grim
• Original Assignee: Tracy E. Grim
• Inventors: Grim, Tracy E.
• Primary Examiner(s): PATTERSON, MARIE D
• Application Number:
  US08/406,004
• Time in Patent Office: 771 Days
• Field of Search: 36/88, 36/93, 36/146, 36/154, 36/3 R, 36/3 A, 36/3 B, 36/8.4, 36/44, 36/71, 36/25 R, 36/147, 36/89, 36/91, 36/92, 36/114, 36/28, 36/29, 36/30 R, 36/35 R , 36/35 B, 36/43, 36/11.5
• US Class Current: 36/88
• CPC Class Codes: A43B 13/20 Pneumatic soles filled with a compressible fluid, e.g. air, gas inflatable linings for skiboots A43B5/0407
• CPC Class Codes: A43B 13/203 provided with a pump or valve
• CPC Class Codes: A43B 13/206 provided with tubes or pipes or tubular shaped cushioning members
• CPC Class Codes: A43B 7/147 for sick or disabled persons, e.g. persons having osteoarthritis or diabetes

Abstract

Shoes are provided with soles and/or upper portions which conform to the configuration of the user'"'"'s feet by the use of vacuum formable bladders in the sole of the shoes and/or in the sides of the upper portions of the shoes. The bladders are filled with material, such as small resilient or interlocking particles, which retains a configuration conforming to the shape of the feet under reduced pressure conditions. A vacuum pump is provided, and it may be located in the heel area of the shoe to be actuated by walking or running to evacuate air from the bladders. The shoe may be removed, and the vacuum formable bladders will retain their shape as long as the vacuum is maintained.

Claims

1. A conformable shoe assembly including a vacuum forming configuration, comprising:

a shoe body;

said shoe body including a sole including a sealed bladder containing particulate material of substantially interlocking properties under vacuum conditions said bladder constituting means for inherently retaining its shape and remaining conformed to its initial state under partial vacuum conditions;

said bladder being resilient under partial vacuum conditions and providing shaped support for the foot;

a vacuum pump for withdrawing air from said sealed bladder; and

said pump being mounted onto said shoe assembly;

means for actuating said pump to withdraw air from said bladder;

said shoe assembly including means for permitting removal of the shoe and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its configuration at atmospheric pressure;

whereby said sole inherently conforms to the shape of the user'"'"'s foot and retains this configuration until the partial vacuum in said bladder is released.

2. A comformable shoe assembly as defined in claim 1 wherein said particulate material is formed of resilient non-shattering material.

3. A conformable shoe assemble as defined in claim 1 wherein said sealed bladder is an integral part of said shoe.

4. A conformable shoe assembly as defined in claim 1 wherein said bladder is included in a shoe sole insert assembly which is wholly separate from and not an integral part of any shoe, and is removably replaceable in any shoe, whereby it is adaptable to be used in a plurality of shoes.

5. A conformable shoe assembly as defined in claim 1 wherein said assembly includes a flapper type one way valve, the components of said valve being of flat plastic material coupled to said bladder.

6. Conformable footgear as defined in claim 1 wherein said sole forms part of a sock type assembly which substantially encloses the foot of the user.

7. A conformable shoe assembly including a vacuum formed configuration, comprising:

a shoe body;

said shoe body including an inner sealed bladder, said inner sealed bladder including means for retaining its shape under partial vacuum conditions and said means including resilient particulate material of substantially interlocking properties under vacuum conditions;

vacuum pump means for withdrawing air from said sealed bladder;

said vacuum pump being mounted on said shoe;

said inner sealed bladder constituting means for providing a resilient support for the user'"'"'s anatomy in the foot and ankle area resulting from the resilient particulate material within the sealed bladder;

said shoe assembly including means for permitting removal of the shoe and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its configuration when not evacuated;

whereby said inner sealed bladder provides shaped support for the user'"'"'s foot and adjacent anatomy when air is withdrawn from said bladder.

8. A conformable shoe assemble as defined in claim 7 wherein said sealed bladder is an integral part of said shoe.

9. A conformable shoe assembly as defined in claim 7 wherein bladder is included in a shoe sole insert assembly which is wholly separate from and not an integral part of any shoe, and is removably replaceable in any shoe, whereby it is adaptable to be used in a plurality of shoes.

10. A conformable shoe assembly including a vacuum formed configuration, comprising:

a shoe body;

said shoe body including an inner sealed bladder, said inner sealed bladder including means for retaining its shape under partial vacuum conditions and said means including particulate material of substantially interlocking properties under vacuum conditions;

vacuum pump means for withdrawing air from said sealed bladder;

said vacuum pump being mounted on said shoe;

said inner sealed bladder constituting means for providing shaped support for the user'"'"'s anatomy resulting from the particulate material within the sealed bladder;

said shoe assembly including means for permitting removal of the shoe and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its configuration when not evacuated;

whereby said inner sealed bladder provides shaped support for the user'"'"'s anatomy when air is withdrawn from said bladder.

11. A conformable shoe assembly as defined in claim 10 wherein said particulate material is formed of resilient non-shattering material.

12. A conformable shoe assemble as defined in claim 10 wherein said sealed bladder is an integral part of said shoe.

13. A conformable shoe assembly as defined in claim 10 wherein bladder is included in a shoe sole insert assembly which is wholly separate from and not an integral part of any shoe, and is removably replaceable in any shoe, whereby it is adaptable to be used in a plurality of shoes.

14. A vacuum formed conformable shoe insert assembly comprising:

an inner sole formed of a sealed bladder, and inner sole including means for inherently retaining its shape and remaining conformed to its initial shape at the time of evacuation, under partial vacuum conditions;

a vacuum pump for withdrawing air from said bladder;

said shoe sole insert assembly being not an integral part of any shoe, and being removably replaceable in any shoe, while the bladder is partially evacuated with the bladder retaining its conformed configuration, whereby it is adapted to be used in a plurality of shoes; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its configuration when not evacuated.

15. A conformable shoe assembly as defined in claim 14 wherein said bladder includes particulate material of substantially interlocking shapes.

16. A conformable shoe assembly as defined in claim 14 wherein said vacuum pump is an integral part of said insert assembly.

17. A conformable shoe assembly as defined in claim 14 wherein said bladder includes resilient, compressible non-shattering particulate material.

18. A conformable shoe assembly as defined in claim 14 wherein said assembly includes a flapper type one way valve, the components of said valve being of flat plastic material coupled to said bladder.

19. A vacuum formed conformable shoe insert assembly comprising:

an inner shoe insert formed of a sealed bladder, said bladder including means for inherently retaining its shape and remaining conformed to its initial shape at the time of evacuation, under partial vacuum conditions;

vacuum pump means for withdrawing air from said bladder;

said shoe insert assembly being not an integral part of any shoe, and being removably replaceable in any shoe, while the bladder is partially evacuated with the bladder retaining its conformed configuration, whereby it is adapted to be used in a plurality of shoes; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its configuration at atmospheric pressure.

20. A conformable shoe assembly including a vacuum forming configuration, comprising:

a shoe body;

said shoe body including a sole including a sealed bladder containing particulate material of substantially interlocking shapes, said bladder constituting means for inherently retaining its shape and remaining conformed to its initial state under partial vacuum conditions;

said bladder being resilient under partial vacuum conditions and providing shaped support for the foot;

a valve coupled to said sealed bladder permitting one-way flow of air out of said bladder when said bladder is compressed;

said shoe assembly including means for compressing said bladder to provide a partially evacuated state upon compression by the foot of a user;

said shoe assembly including means for permitting removal of the shoe and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its configuration when not evacuated;

whereby said sole inherently conforms to the shape of the user'"'"'s foot and retains this configuration until the partial vacuum in said bladder is released.

21. Conformable footgear including a vacuum forming configuration, comprising:

a sole including a sealed bladder containing yieldable material constituting means for (1) inherently retaining its shape and remaining conformed to its modified configuration under partial vacuum conditions; and

(2) under atmospheric pressure when not evacuated, repeatedly conforming to the shape of the foot of users applied to said sole;

said bladder being resilient under partial vacuum conditions and providing shaped support for the foot;

a valve coupled to said sealed bladder permitting one-way flow of air out of said bladder when said sole is compressed;

said bladder being compressible to provide a partially evacuated state upon compression by the foot of a user;

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its configuration when not evacuated;

said footgear including a foot engaging assembly for holding said sole in position underlying the foot of a user; and

said footgear including means for permitting removal of the footgear and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration;

whereby said bladder inherently conforms to the shape of the user'"'"'s foot and retains this configuration until the partial vacuum in said bladder is released.

22. Conformable footgear as defined in claim 21 wherein said bladder contains resilient particulate material.

23. Conformable footgear as defined in claim 22 wherein said bladder contains particulate material and wherein means are provided to inhibit migration of said particulate material.

24. Conformable footgear as defined in claim 21 wherein said bladder contains resilient open cell foam.

25. Conformable footgear as defined in claim 21 wherein said footgear is an open sandal, and includes straps for securing said sole to the foot of a user.

26. Conformable footwear as defined in claim 21 including a pump for repeated actuation to evacuate said bladder.

27. Conformable footgear including a vacuum forming configuration, comprising:

a sealed bladder containing yieldable material constituting means for inherently retaining its shape and remaining conformed to its modified configuration under partial vacuum conditions;

said bladder being resilient under partial vacuum conditions and providing shaped support for the foot;

a valve coupled to said sealed bladder permitting one-way flow of air out of said bladder when said bladder is compressed;

said foot gear including means for compressing said bladder to provide a partially evacuated state upon compression by engagement with the foot of a user;

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its configuration when not evacuated;

said footgear including a foot engaging assembly for holding said bladder in position supporting the foot of a user; and

said footgear including means for permitting removal of the footgear and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration;

whereby said bladder inherently conforms to the shape of the user'"'"'s foot and retains this configuration until the partial vacuum in said bladder is released.

28. Conformable footgear as defined in claim 27 wherein said bladder contains interlocking particulate material.

29. Conformable footgear as defined in claim 27 wherein said bladder contains resilient open cell foam.

30. Conformable footgear as defined in claim 27 wherein said bladder contains particulate material and wherein means are provided to inhibit migration of said particulate material.

31. Conformable footgear as defined in claim 27 wherein said footgear includes both interlocking particulate material and resilient foam material.

32. A conformable shoe assembly including a vacuum formed configuration, comprising:

a shoe body;

said shoe body an inner sealed bladder containing yieldable material constituting means for inherently retaining its shape and remaining conformed to its modified configuration under partial vacuum conditions;

vacuum pump means for withdrawing air from sealed bladder;

said inner sealed bladder constituting shaped support for the users anatomy in the foot area resulting from the yieldable material within the sealed bladder;

said shoe assembly including means for permitting removal of the shoe and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its configuration when not evacuated;

whereby said inner sealed bladder provides shaped support for the user'"'"'s foot and adjacent anatomy when air is withdrawn from said bladder.

33. A conformable shoe assembly including a vacuum forming configuration<

comprising;

a shoe body;

said shoe body including a sole including a sealed bladder containing particulate material of substantially interlocking properties under vacuum conditions, said bladder constituting means for inherently retaining its shape and remaining conformed to its initial state under partial vacuum conditions;

said bladder being resilient under partial vacuum conditions and providing shaped support for the foot;

a vacuum pump for withdrawing air from said sealed bladder;

said pump being mounted in the sole of said shoe;

means for actuating said pump to withdraw air from said bladder;

said shoe assembly including means for permitting removal of the shoe and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its normal unevacuated configuration;

whereby said sole inherently conforms to the shape of the user'"'"'s foot and retains this configuration until the partial vacuum in said lining is released.

34. A conformable shoe assembly including a vacuum formed configuration, comprising:

a shoe body;

said shoe body including an inner sealed bladder, said inner sealed bladder including means for retaining its shape under partial vacuum conditions and said means including particulate material of substantially interlocking properties under vacuum conditions;

vacuum pump means for withdrawing air from said sealed bladder;

said pump being mounted in the sole of said shoe;

said inner sealed bladder constituting a resilient support for the user'"'"'s anatomy in the foot and ankle area resulting from the resilient compressible particulate material within the sealed bladder;

said shoe assembly including means for permitting removal of the shoe and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its normal unevacuated configuration;

whereby said inner sealed bladder provides shaped support for the user'"'"'s foot and adjacent anatomy when air is withdrawn from said bladder.

35. A conformable shoe assembly including a vacuum formed configuration, comprising:

a shoe body;

said shoe body including an inner sealed bladder, said inner sealed bladder including means for retaining its shape under partial vacuum conditions and said means including particulate material of substantially interlocking properties under vacuum conditions;

vacuum pump means for withdrawing air from said sealed bladder;

said vacuum pump being mounted immediately adjacent said sealed bladder, and constituting means for evacuating said sealed bladder when the user walks, runs, or puts weight on the foot on which said shoe assembly is mounted;

said inner sealed bladder constituting shaped support for the user'"'"'s anatomy in the foot and ankle area resulting from the particulate material within the sealed bladder;

said shoe assembly including means for permitting removal of the shoe and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its normal unevacuated configuration;

whereby said inner sealed bladder provides shaped support for the user'"'"'s foot and adjacent anatomy when air is withdrawn from said bladder.

36. A conformable shoe assembly including a vacuum formed configuration, comprising:

a shoe body;

said shoe body including an inner sealed bladder, said inner sealed bladder including means for retaining its shape under partial vacuum conditions and said means including particulate material of substantially interlocking properties under vacuum conditions;

vacuum pump means for withdrawing air from said sealed bladder;

said pump being mounted in the sole of said shoe;

said inner sealed bladder constituting shaped support for the user'"'"'s anatomy in the foot and ankle area resulting from the particulate material within the sealed bladder;

said shoe assembly including means for permitting removal of the shoe and remounting on a foot while the bladder is partially evacuated with the bladder retaining its conformed configuration; and

said bladder having a reduced thickness and configuration when it is partially evacuated as compared with its normal unevacuated configuration;

whereby said inner sealed bladder provides shaped support for the user'"'"'s foot and adjacent anatomy when air is withdrawn from said bladder.