05815927 is referenced by 104 patents and cites 19 patents.

A folding knife having a blade pivot connecting a blade to a handle for pivotal movement between an extended position outside of the blade cavity and a retracted position substantially within the blade cavity. A spring biased plunger having a first end and second end opposite the first end is provided, and the first end of the plunger includes a pivotal connector pivotally connecting the plunger to the handle within the blade cavity. The second end of the plunger is pivotally connected to the blade for orbital movement about the blade pivot as the blade moves between the retracted and extended positions. A pivotable locking member is connected to the handle for selectively locking the blade in the extended position. Further, an engagement portion is provided for opening the blade using a downward motion.

Title
Folding knife with actuatable safety locking mechanism
Application Number
8/583822
Publication Number
5815927
Application Date
January 11, 1996
Publication Date
October 6, 1998
Inventor
Walter W Collins
P.O. Box 100, 4651 Savannah Hwy., North, 29112
SC, US
Agent
Leatherwood Walker Todd & Mann P C
IPC
B26B 1/04
View Original Source