Single spring double lockblade folding knife
AssigneeW. R. Case & Sons Cutlery Company
InventorsThomas D. Hart, David J. Hart
Life of this patent
Estimating the term…
Abstract
A foldable knife is provided having two lock blades each of which or both of which simultaneously may be locked in their open position against movement in either direction about their respective pivots. A separate locking member and tumbler is provided for each blade but only a single spring is utilized to operate both locking members and urge them toward their locked position.
Claims9
In a foldable knife having a handle and two blades pivoted to the handle for movement to and from open and closed positions, the improvement comprising:
- (a) a locking member for each of said blades mounted in tandem to said handle for movement to and from locked and unlocked positions;
- each of said members mounted on separate spaced-apart pivot means and
- (b) a single spring mounted in said handle for urging both of said locking members toward their locked position.
The knife of any one of the preceding claims, in which said spring is elongated, said spring is pivoted adjacent its center in said handle, and each of the ends of said elongated spring bears against a locking member.
Dependencies are inferred from the claim text.