Electric contact structure for a locking cylinder

Details Electric contact structure for a locking cylinder Electric contact structure for a locking cylinder

1988-08-24

1990-03-27

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

H01H 2706

Patent

active

049122908

ABSTRACT:
A contact structure of a locking cylinder comprising a pair of contact pieces each extending laterally and pivoted at its one end about a pivot axis parallel to the axial line of the locking cylinder, a pair of springs, each urging the corresponding contact piece inwardly toward the center of the locking cylinder, a pair of stoppers which limit the inward motion of the contact pieces to the positions where they protrude slightly into a bore defined at the entrance to the key hole of the locking cylinder. The radially inner surfaces of the contact pieces of the locking cylinder define contact surface which electrically contact the corresponding contact pieces provided in the side edges of the base end of the shank of the key. This contact structure provides uninterrupted electric conductance between the key and the locking cylinder. To facilitate the insertion of the key into the key hole of the locking cylinder, a guide member may be fitted into the cavity defined between the contact pieces in front of the key hole so as not to interfere with the motion of the contact pieces.

REFERENCES:
patent: 3703704 (1972-11-01), Schiesterl et al.
patent: 3724245 (1973-04-01), Kitchen, Jr.
patent: 3806675 (1974-04-01), Krom et al.
patent: 4148372 (1979-04-01), Schroeder
patent: 4647734 (1987-03-01), Dana

Affiliated with

Also associated with

Rating

Electric contact structure for a locking cylinder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric contact structure for a locking cylinder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric contact structure for a locking cylinder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1652481