Latch status sensor sensing closed and unlatched position

Details Latch status sensor sensing closed and unlatched position Latch status sensor sensing closed and unlatched position

1992-04-14

1993-05-25

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250229, 340556, G01N 2186, G01D 534, G08B 1318

Patent

active

052142930

ABSTRACT:
In a push-to-release latch connected to a door/lid revolving about an axis of rotation of a cabinet between open, closed and unlatched, and closed and latched positions wherein the closed and unlatched and closed and latched positions are rotationally displaced from one another, apparatus for determining the status of the latch without sensing the latch. A reflector is carried by the door/lid or the cabinet and a non-contacting optical sensor carried by the other for directing a beam of light from an emitter, for receiving the beam of light as reflected by the reflector, and for outputting an electrical signal at an output thereof as a function of reflected light. The reflector and the non-contacting optical sensor are positioned such that the beam of light strikes the reflector to be reflected thereby when the door/lid is in a closed and latched position and the beam of light does not strike the reflector to be reflected thereby when the door/lid is in a closed and unlatched position. The reflectors and optical sensors can be employed at side edges of a lid with side latching to detect skewed closing thereof when one latch is latched and the other is not.

REFERENCES:
patent: 4032158 (1977-06-01), Stanwell-Smith et al.
patent: 4540269 (1985-09-01), Nishiyama
patent: 4564085 (1986-01-01), Melocik et al.
patent: 4841283 (1989-06-01), Bubliewicz
patent: 4870290 (1989-09-01), Deck
patent: 4943715 (1990-07-01), Konishi
patent: 5021676 (1991-06-01), Dragon et al.

Affiliated with

Also associated with

Rating

Latch status sensor sensing closed and unlatched position does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Latch status sensor sensing closed and unlatched position, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Latch status sensor sensing closed and unlatched position will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-899482