Scott S Geiger

US Patent:

53421264, Aug 30, 1994

Filed:

Nov 15, 1993

Appl. No.:

8/151638

Inventors:

Jeffrey W. Heston - Warren OH
Marc D. Polanka - Solon OH
Jeffrey A. Rock - West Henrietta NY
Scott A. Geiger - Rochester NY

Assignee:

General Motors Corporation - Detroit MI

International Classification:

G01K 114
G01K 1302

US Classification:

374208

Abstract:

A twist lock for attaching a plastic shell of a thermal probe to a structural member such as a plastic intake manifold of an internal combustion engine in a socket in the structural member. The twist lock includes hooks on the plastic shell which traverse an annular shoulder at the bottom of the socket through notches in the shoulder when the shell is inserted in the socket and which are captured by the shoulder when the shell is rotated in the socket from an unlocked position to a locked position. The twist lock further includes a lug on the shell cooperating with a cam edge on a resilient lip around an open end of the socket to afford tactile representation of the progress of the shell toward and achievement of the locked position and to prevent reverse rotation of the shell from the locked position.