Patent ID: 11904484
Assignee: BENCHMADE KNIFE CO., INC.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A knife, comprising:
a blade; and
a handle sized to enclose the blade when the blade is in a retracted position, the handle comprising:
a first handle half and a second handle half, each of the first and second handle halves including a plurality of retaining structures; and
an aperture disposed at one end of the handle, the aperture sized to allow the blade to pass through; and
an action contained within the handle and coupled to the blade, the action comprising:
a first liner with a central slot and a plurality of ovoid apertures disposed about the central slot, the first liner retained to the first handle half by the first handle half's plurality of retaining structures;
a second liner with a plurality of ribs that run parallel to a longitudinal axis of the second liner, the second liner retained to the second handle half by the second handle half's plurality of retaining structures; and
a plurality of springs, each spring disposed within a corresponding one of the plurality of ribs, the plurality of springs mechanically coupled to the blade;

wherein the plurality of retaining structures of the first handle half comprise a plurality of posts, and the first liner is retained to the first handle half by each of the plurality of posts passing through a corresponding one of the plurality of ovoid apertures, each of the plurality of posts including a plurality of crush ribs that cooperate with each of the plurality of ovoid apertures to center the first liner within the first handle half.