Combination utility retractable saw and knife device

• US 6,467,173 B1
• Filed: 08/31/2000
• Issued: 10/22/2002
• Est. Priority Date: 10/12/1999
• Status: Expired due to Fees

• Current Assignee: George H. Umstead, Steven M. Umstead
• Original Assignee: George H. Umstead, Steven M. Umstead
• Inventors: Umstead, George H., Umstead, Steven M.
• Primary Examiner(s): Watts, Douglas D.
• Application Number:
  US09/652,628
• Time in Patent Office: 782 Days
• Field of Search: 711/8-1-0, 305/01, 305/02, 303/35, 305/17, 301/62, 301/23, 838/54, 838/35
• US Class Current: 30/144
• CPC Class Codes: B23D 51/01 characterised by the handle
• CPC Class Codes: B23D 51/03 with extensible or collapsible frames ; Frames with spare blade storage means
• CPC Class Codes: B23D 51/10 for hand-held or hand-operated devices
• CPC Class Codes: B23D 61/126 having cutting teeth along both edges
• CPC Class Codes: B26B 11/00 Hand knives combined with other implements, e.g. with corkscrew, with scissors, with writing implement combined table-ware A47G21/06

Abstract

The present invention provides a combination utility retractable saw and knife device that comprises a handle member having a predetermined configuration and a knife blade disposed within a cavity formed in the handle member when in a retracted position. The knife blade member has a predetermined configuration. It further includes a saw blade disposed within a radially opposed cavity of such handle member when in a retracted position. Such combination device further includes a means engageable with the saw blade for connecting it with the handle and a means engageable with the knife blade for connecting it with the handle. There is also a means engageable with the saw blade for at least one of slidably moving and pivotably rotating the saw blade to an operable position, the means being at least partially disposed within the handle and a means engageable with the knife blade for slidably moving the knife blade member to an operable position, such means also being at least partially disposed within the handle. There is further a means engageable with the saw blade and the handle for locking the saw blade in an operable position and in a retracted position, such means being at least partially disposed within the handle and a means engageable with the knife blade and the handle for locking the knife blade in an operable and a retracted position, such means being at least partially disposed within said handle member.

Claims

1. A combination utility retractable saw and knife device comprising:

(a) a handle member having a predetermined configuration;

(b) a knife blade member disposed within a cavity formed in said handle member when in a retracted position, said knife blade member having a predetermined configuration,

(c) a saw blade member formed from an elongated metallic strip, said elongated strip portion having a predetermined thickness and a predetermined composition, a first end having a first predetermined width, a second end having a second predetermined width, a first elongated edge disposed between said first end and said second end and a second elongated edge disposed between said first end and said second end, at least one of said first elongated edge and said second elongated edge having a serrated surface, said saw blade member disposed in one of within a radially opposed cavity formed in a portion of said handle member and attached to an exterior portion of said handle member when in a retracted position, said exterior portion of said handle having an enclosure at least enclosing said saw blade member such that said at least one of said first elongated edge and said second elongated edge having a serrated surface is covered when in a retracted position;

(d) a means engageable with said knife blade member for connecting said knife blade member with said handle member of combination utility retractable saw and knife device;

(e) a means engageable with said saw blade member for connecting said saw blade member with said handle member of said combination utility retractable saw and knife device;

(f) a means engageable with said knife blade member for slidably moving said knife blade member to an operable position, said means for slidably moving said knife blade member being at least partially disposed within said handle member;

(g) a means engageable with said saw blade member for at least one of slidably moving and pivotably rotating said saw blade member to an operable position, said means for at least one of slidably moving and pivotably rotating said saw blade member being at least partially disposed in one of within said cavity formed in said handle member and attached to said exterior portion of said handle member;

(h) a means engageable with said knife blade member and said handle member for locking said knife blade member in said operable position and in said retracted position, said means for locking said knife blade member being at least partially disposed within said handle member; and

(i) a means engageable with said saw blade member and said handle member for locking said saw blade member in said operable position and in said retracted position, said means for locking said saw blade member being at least partially disposed in one of within said radially opposed cavity formed in said handle member and attached to said exterior portion of said handle member.

2. A combination utility retractable saw and knife device, according to claim 1, wherein said first elongated edge of said elongated metallic strip has a first serrated surface and said second elongated edge of said elongated metallic strip portion has a second serrated surface.

3. A combination utility retractable saw and knife device, according to claim 2, wherein said second serrated surface is different from said first serrated surface.

4. A combination utility retractable saw and knife device, according to claim 1, wherein said predetermined configuration of said handle member is generally rectangular.

5. A combination utility retractable saw and knife device, according to claim 1, wherein said radially opposed cavity further includes a saw blade slide groove.

6. A combination utility retractable saw and knife device, according to claim 1, wherein said saw blade member is disposed within said handle member.

7. A combination utility retractable saw and knife device, according to claim 6, wherein said means engageable with said saw blade member for at least one of slidably moving and pivotably rotating said saw blade member is slidably moving and further includes a first slot in a first end of said handle member, said first slot opens to said radially opposed cavity.

8. A combination utility retractable saw and knife device, according to claim 7, wherein said means engageable with said saw blade member and said handle member for slidably moving said saw blade member further includes a first slide lock assembly.

9. A combination utility retractable saw and knife device, according to claim 8, wherein said first slide lock assembly further includes a center portion having a first predetermined configuration, a slide groove lug projecting downwardly from substantially a midpoint of said center portion for engaging said saw blade slide groove in said radially opposed cavity and a blade lug projecting outwardly from substantially a midpoint of said center portion for engaging said saw blade.

10. A combination utility retractable saw and knife device, according to claim 8, wherein said means engageable with said saw blade member and said handle member for locking said saw blade member in said operable position and in said retracted position includes a lock and unlock cap engageable with said first slide lock assembly.

11. A combination utility retractable saw and knife device, according to claim 1, wherein said means engageable with said knife blade member for slidably moving said knife blade member further includes a second slot in a first end of said handle member, said second slot opens to said cavity.

12. A combination utility retractable saw and knife device, according to claim 11, wherein said cavity further includes a knife blade slide groove.

13. A combination utility retractable saw and knife device, according to claim 12, wherein said means engageable with said knife blade member and said handle member for slidably moving said knife blade member further includes a second slide lock assembly.

14. A combination utility retractable saw and knife device, according to claim 13, wherein said second slide lock assembly further includes a center portion having a first predetermined configuration, a slide groove lug projecting downwardly from substantially a midpoint of said center portion for engaging said knife blade slide groove in said cavity and a blade lug projecting outwardly from substantially a midpoint of said center portion for engaging said knife blade.

15. A combination utility retractable saw and knife device, according to claim 13, wherein said means engageable with said knife blade member and said handle member for locking said knife blade member in said operable position and in said retracted position includes a lock and unlock cap engageable with said second slide lock assembly.

16. A combination utility retractable saw and knife device, according to claim 1, wherein said means engageable with said saw blade member for connecting said saw blade member to said handle member includes an aperture in said saw blade closely adjacent said second end.

17. A combination utility retractable saw and knife device, according to claim 1, wherein said handle member further includes a third slot in a second side for permitting said saw blade member to pivotably rotate and extend outward in said operable position, said operable position being substantially at a right angle with said handle member, said third slot opening to said radially opposed cavity and extending from a point closely adjacent a first end of said handle member to a point closely adjacent a second end of said handle member.

18. A combination utility retractable saw and knife device, according to claim 17, wherein said handle member further includes a swift change slide groove opening into said third slot for rapid changing of saw blades, said swift change side groove being a branch of said saw blade slide groove, said swift change slide groove being closely adjacent said second end of said handle member.

19. A combination utility retractable saw and knife device, according to claim 1, wherein said handle member further includes a snap ring closely adjacent a second end of said handle member for securing said combination utility retractable saw and knife device to a tool belt.