Folding knife

• US 20070137047A1
• Filed: 12/15/2005
• Published: 06/21/2007
• Est. Priority Date: 12/15/2005
• Status: Abandoned Application

• Current Assignee: SureFire LLC (Surefire Holdings LLC)
• Original Assignee: SureFire LLC (Surefire Holdings LLC)
• Inventors: Kim, Paul
• Application Number:
  US11/303,178
• Publication Number:
  US 20070137047A1
• Time in Patent Office: Days
• US Class Current: 30/161
• CPC Class Codes: B26B 1/046 with a locking member acting in axial direction parallel to the pivot axis of the blade

Abstract

A folding knife including a knife blade pivotally secured to a knife handle in such manner as to permit the knife blade to be releasably locked in a closed position with respect to the handle and in practically any open position.

Claims

1. A folding knife comprising:

a knife handle including a lug guide;

a pivot lock carried by said knife handle, said pivot lock including a blade pivot and a lug for said lug guide;

a knife blade having a tang including a pivot hole and two lug slots, said blade pivot received by said pivot hole for enabling rotation of said knife blade about said blade pivot when said lug is disengaged from said lug slots, said knife blade locked in an open position with respect to said knife handle when said lug engages one of said lug slots and in a closed position when said lug engages the other of said lug slots; and

a pushbutton carried by said knife handle and coupled to said pivot lock, said pushbutton biased for normally engaging said lug with said lug slots and for disengaging said lug from said lug slots when said pushbutton is depressed.

2. The knife according to claim 1, including:

a spring biasing said pushbutton in a direction away from said pivot lock for normally engaging said lug with said lug slots, said pushbutton being depressible against the bias of said spring for disengaging said lug from said lug slots.

3. The knife according to claim 1, wherein:

said lug slots are spaced apart by 180 degrees about said pivot hole.

4. The knife according to claim 1, wherein:

said tang includes at least one additional lug slot for being engaged by said lug when said knife blade is in a partially open position.

5. The knife according to claim 4, wherein:

said at least one additional slot is spaced from said two lug slots about said pivot hole.

6. The knife according to claim 1, wherein:

said knife handle includes a stop adapted to cooperate with said knife blade for preventing rotation of said knife blade past said open position.

7. The knife according to Claim 1, wherein:

said knife handle includes an elongate first scale including said lug guide, and an elongate second scale secured to said first scale and laterally spaced therefrom for accommodating said knife blade between said first scale and said second scale;

said pivot lock is carried by said first scale; and

said pushbutton is carried by said second scale.

8. A folding knife comprising:

a knife handle including two lug guides;

a pivot lock carried by said knife handle, said pivot lock including a blade pivot and two lugs for said lug guides;

a knife blade having a tang including a pivot hole and two lug slots spaced about said pivot hole, said blade pivot received by said pivot hole for enabling rotation of said knife blade about said blade pivot when said lugs are disengaged from said lug slots, said knife blade locked in an open position with respect to said knife handle when one of said lugs engages one of said lug slots and the other of said lugs engages the other of said lug slots, said knife blade locked in a closed position when said one of said lugs engages said other of said lug slots and said other of said lugs engages said one of said lug slots; and

a pushbutton carried by said knife handle and coupled to said pivot lock, said pushbutton biased for normally engaging said lugs with said lug slots and for disengaging said lugs from said lug slots when said pushbutton is depressed.

9. The knife according to claim 8, including:

a spring biasing said pushbutton in a direction away from said pivot lock for normally engaging said lugs with said lug slots, said pushbutton being depressible against the bias of said spring for disengaging said lugs from said slots.

10. The knife according to claim 8, wherein:

said lug slots are spaced apart by 180 degrees about said pivot hole.

11. The knife according to claim 8, wherein:

said tang includes at least one pair of additional lug slots spaced about said pivot hole for being engaged by said lugs when said knife blade is in at least one predetermined partially open position with respect to said knife handle.

12. The knife according to claim 11, wherein:

the lug slots of each of said at least one pair of additional lug slots are spaced apart by 180 degrees.

13. The knife according to claim 12, wherein:

said two lug slots are spaced apart by 180 degrees about said pivot hole.

14. The knife according to claim 8, wherein:

said knife handle includes a stop adapted to cooperate with said knife blade for preventing rotation of said knife blade past said open position.

15. The knife according to Claim 8, wherein:

said knife handle includes an elongate first scale including said lug guide, and an elongate second scale secured to said first scale and laterally spaced therefrom for accommodating said knife blade between said first scale and said second scale;

said pivot lock is carried by said first scale; and

said pushbutton is carried by said second scale.