Adjustable, pressure-compensating, custom fitting pads having predetermined amount of fitting material and their use in boots

• US 4,083,127 A
• Filed: 03/17/1977
• Issued: 04/11/1978
• Est. Priority Date: 03/17/1977
• Status: Expired due to Term

• Current Assignee: RIK Medical LLC (3M Company), Alden B. Hanson, Alden Laboratories, Inc., Chris A. Hanson, Eric C. Jay, Flowfit Medical, LLC, JAY Medical, Ltd., Pressure Relief Technologies, Inc., Quickie Designs, Inc., Sunrise Medical Incorporated
• Original Assignee: Hanson Industries, Inc.
• Inventors: Hanson, Chris A.
• Primary Examiner(s): Lawson, Patrick D.
• Application Number:
  US05/778,828
• Time in Patent Office: 390 Days
• Field of Search: 36/71, 36/93, 36/88, 36/96, 36/117, 36/118, 36/119, 36/120, 36/121, 36/29, 36/35 B, 5/348 R, 5/348 WB
• US Class Current: 36/93
• CPC Class Codes: A43B 5/0405 Linings, paddings or insertions; Inner boots

Abstract

Preformed fitting pads are disclosed having a protective envelope enclosure with flowable fitting material retained therein. The enclosure is shaped and constructed to provide therein communicating reservoir and primary fitting sections constructed in operative relationship to each other, so as to selectively provide for, as desired, the deliberate transfer of flowable fitting material from or to a reservoir section or a primary fitting section, and to selectively maintain, as desired, a controllable or predetermined volume of fitting material in a primary fitting section, all without requiring that fitting material be introduced into the pad from an external source of supply or be removed from the confines of the pad. The fitting material confined in said primary fitting section provides desirable pressure-compensating support when and where needed. Footwear or ankle-covering boots are also disclosed which are designed and constructed to receive and maintain such removable fitting pads therein, and which also include therein other, separate and distinct, removable fitting pads.

Claims

1. An adjustable, multi-sectional, pressure-compensating fitting pad of desired shape and size, which comprises

a multi-sectional, shaped, flexible, protective enclosure having retained therein a predetermined volume of flowable, pressure-compensating fitting material, which, together, provide an adjustable, multi-sectional, pressure-compensating fitting pad,

said multi-sectional enclosure being shaped and constructed to provide therein a reservoir section and at least one communicating primary fitting section, including interconnecting restrictable flow control passageway means, to allow confined fitting material in said primary fitting section to flow therein in response and conformance to continuously applied pressure exerted on that section of the fitting pad and the relief of such exerted, flow-producing pressure, and to provide a reservoir section from or to which at least some flowable fitting material may be selectively transferred, as desired, within the enclosure to or from said primary fitting section through said passageway means, said passageway means being positioned, shaped and constructed to be selectively opened, to provide for said transfer of fitting material from or to said reservoir or fitting sections, or closed, as desired, by separating or partitioning means,

said closing of the flow control passageway means thereby selectively restricts or prevents the ingress or egress of flowable fitting material from one section to the other partitioned or separated section and maintains a desired or controlled volume of fitting material in said primary fitting section.

2. The pressure-compensating fitting pad of claim 1, wherein the closing of the restrictable flow control passageway means is provided by means of selectively folding or rolling-up at least part of the reservoir section.

3. The pressure-compensating fitting pad of claim 1, wherein said pad includes separating or partitioning, clamping means operatively associated therewith.

4. The pressure-compensating fitting pad of claim 3, wherein said separating or partitioning, clamping means comprise a removable flow control clip.

5. The pressure-compensating fitting pad of claim 1, wherein said enclosure is formed of thermoplastic elastomeric film which is heat-sealed.

6. The pressure-compensating fitting pad of claim 1, wherein

said flowable fitting material is characterized by a predominant, substantially homogeneous, substantially stable, viscous, flowable, continuous phase essentially consisting of wax and oil, and having substantially uniformly distributed therethrough, a discontinuous phase of discrete, lightweight, sturdy microbeads,

said wax and oil phase is present in an amount sufficient (a) to more than merely thinly coat substantially the entire outer surface of essentially each of said microbeads or to more than merely form a thin film over the surface of essentially each of said microbeads, and (b) to provide a volume that is substantially more than the volume of the interstitial spaces of the quantity of micro-beads alone, and

said fitting material is further characterized by having a substantially homogeneous consistency and not substantially changing in volume responsive to ambient temperatures or ambient temperature changes, being resistant to sag, flowing in response and conformance to continuously applied pressure, and, when confined during conditions of use, being resistant to flow in response to instantaneously applied pressure.

7. In a boot that covers the ankle of the wearer, the improvement comprising

providing in combination with and disposed and positioned in said boot along selected portions thereof, including selected front and side portions, including the ankle, of the foot, an adjustable, removable, pressure-compensating fitting pad having a fitting portion which substantially assumes the shape of selected portions of the foot covered thereby and provides proper, controllable and ready fitting, firm support and comfort to selected portions of the foot, and which comprises

a shaped, flexible, protective enclosure having retained therein a predetermined volume of flowable, pressure-compensating fitting material, which, together, provide an adjustable, pressure-compensating fitting pad,

said enclosure being shaped and constructed to provide therein a reservoir section and at least one communicating primary fitting section, to allow confined fitting material in said primary fitting section to flow therein in response and conformance to continuously applied pressure exerted on that section of the fitting pad and the relief of such exerted, flow-producing pressure, and to provide a reservoir section from or to which at least some flowable fitting material may be selectively transferred, as desired, within the enclosure to or from said primary fitting section, and including means for selectively restricting or preventing the flow of flowable fitting material from one section to the other section and maintaining a desired or controllable volume of fitting material in said primary fitting section.

8. The improved boot of claim 7, wherein the selective restricting or preventing of the flow of flowable fitting material to or from the primary fitting section from or to the reservoir section is provided by means of selectively folding or rolling-up at least part of the reservoir section.

9. The improved boot claim 7, wherein said pad is multi-sectional in that the communicating reservoir and primary fitting sections of the enclosure are inter-connected by a restrictable flow control passageway, which passageway is positioned, shaped and constructed to be selectively opened, to provide for said transfer of fitting material from or to said reservoir or primary fitting sections, or closed, as desired, by separating or partitioning means, said closing of the flow control passageway thereby selectively restricts or prevents the ingress or egress of flowable fitting material from one section to the other section and maintains a desired or controlled volume of fitting material in said primary fitting section.

10. The improved boot of claim 9, wherein said pad includes separating or partitioning, clamping means operatively associated therewith.

11. The improved boot of claim 9, wherein said pad includes separating or partitioning, clamping means in the form of a removable flow control clip operatively associated therewith.

12. The improved boot of claim 9, wherein said pad includes adjustable, separating or partitioning, clamping means operatively associated therewith and connected to the shell of the boot.

13. The improved boot of claim 7, wherein said enclosure is formed of thermoplastic elastomeric film which is heat-sealed.

14. The improved boot of claim 7, wherein

said flowable fitting material is characterized by a predominant, substantially homogeneous, substantially stable, viscous, flowable, continuous phase essentially consisting of wax and oil, and having substantially uniformly distributed therethrough, a discontinuous phase of discrete, lightweight, sturdy microbeads,

said wax and oil phase is present in an amount sufficient (a) to more than merely thinly coat substantially the entire outer surface of essentially each of said microbeads or to more than merely form a thin film over the surface of essentially each of said microbeads, and (b) to provide a volume that is substantially more than the volume of the interstitial spaces of the quantity of microbeads alone, and

said fitting material is further characterized by having a substantially homogeneous consistency and not substantially changing in volume responsive to ambient temperatures or ambient temperature changes, being resistant to sag, flowing in response and conformance to continuously applied pressure, and, when confined during conditions of use, being resistant to flow in response to instantaneously applied pressure.

15. The improved boot of claim 7, wherein said boot is a rear-entry boot.

16. The improved boot of claim 7, wherein a separate and distinct, pressure-compensating, fitting pad with flowable fitting material retained therein is also disposed in said boot and is positioned, shaped and constructed to cover the arched instep region of the foot and provide thereat proper and ready fitting, firm support and comfort.

17. A ski boot, which comprises:

a substantially rigid outer shell,

a flexible liner member disposed within said shell and having wall means with an inner surface and an outer surface, and constructed to conform substantially to the contour of a wearer'"'"'s foot,

said flexible liner member having at least one cavity associated with said outer surface thereof, whereby space or clearance is provided between said outer surface of the liner member and said outer shell,

said space or clearance being shaped and of a size to fully receive an adjustable, removable, pressure-compensating fitting pad which provides proper, controllable and ready fitting, firm support and comfort to selected regions of the foot, including selected front and side regions, including the ankle,

said adjustable fitting pad comprising a shaped, flexible protective enclosure having retained therein a predetermined volume of flowable, pressure-compensating fitting material, which, together, provide an adjustable, pressure-compensating fitting pad,

said enclosure being shaped and constructed to provide therein a reservoir section and at least one communicating primary fitting section, to allow confined fitting material in said primary fitting section to flow therein in response and conformance to continuously applied pressure exerted by the foot on that section of the fitting pad and the relief of such exerted, flow-producing pressure, and to provide a reservoir section from or to which at least some flowable fitting material may be selectively transferred, as desired, within the enclosure to or from said primary fitting section, and including means for selectively restricting or preventing the flow of flowable fitting material from one section to the other section and maintaining a desired or controllable volume of fitting material in said primary fitting section,

said ski boot being constructed so that upon placement of the foot to be fitted into said flexible liner member, the fitting material selectively present in at least said primary fitting section flows and is deformed, so as to place said flexible liner member into snug, but comfortable, fitting relationship with selected regions of the foot and to maintain such relationship during the wearing of the ski boot.

18. The ski boot of claim 17, wherein the selective restricting or preventing of the flow of flowable fitting material to or from the primary fitting section from or to the reservoir section is provided by means of selectively folding or rolling-up at least part of the reservoir section.

19. The ski boot of claim 17, wherein said pad is multi-sectional in that the communicating reservoir and primary fitting sections of the enclosure are interconnected by a restrictable flow control passageway, which passageway is positioned, shaped and constructed to be selectively opened, to provide for said transfer of fitting material from or to said reservoir or primary fitting sections, or closed, as desired, by separating or partitioning means, said closing of the flow control passageway thereby selectively restricts or prevents the ingress or egress of flowable fitting material from one section to the other section and maintains a desired or controllable volume of fitting material in said primary fitting section.

20. The ski boot of claim 19, wherein said pad includes separating or partitioning, clamping means operatively associated therewith.

21. The ski boot of claim 19, wherein said pad includes separating or partitioning, clamping means in the form of a removable flow control clip operatively associated therewith.

22. The ski boot of claim 19, wherein said pad includes adjustable, separating or partitioning, clamping means operatively associated therewith and connected to the shell of the ski boot.

23. The ski boot of claim 17, wherein said enclosure is formed of thermoplastic elastomeric film which is heat-sealed and thereby retains the fitting material in said enclosure.

24. The ski boot of claim 17, wherein

said flowable fitting material is characterized by a predominant, substantially homogeneous, substantially stable, viscous, flowable, continuous phase essentially consisting of wax and oil, and having substantially uniformly distributed therethrough, a discontinous phase of discrete, lightweight, sturdy microbeads,

said wax and oil phase is present in an amount sufficient (a) to more than merely thinly coat substantially the entire outer surface of essentially each of said microbeads or to more than merely form a thin film over the surface of essentially each of said microbeads, and (b) to provide a volume that is substantially more than the volume of the interstitial spaces of the quantity of microbeads alone, and

said fitting material is further characterized by having a substantially homogeneous consistency and not substantially changing in volume responsive to ambient temperatures or ambient temperature changes, being resistant to sag, flowing in response and conformance to continuously applied pressure, and, when confined during conditions of use, being resistant to flow in response to instantaneously applied pressure.

25. The ski boot of claim 17, whrein said ski boot is a rear-entry ski boot.

26. A ski boot of claim 17, wherein said ski boot includes a separate and distinct, removable, pressure-compensating fitting pad with flowable fitting material retained therein, which is also disposed in said ski boot and is positioned, shaped and constructed to cover the arched instep region of the foot and provide thereat proper and ready fitting, firm support and comfort.