Electricity: circuit makers and breakers – Solid contact – Rolamite-type
Patent
1989-10-10
1991-01-15
Luebke, Renee S.
Electricity: circuit makers and breakers
Solid contact
Rolamite-type
H01H 116
Patent
active
049856049
ABSTRACT:
A rolamite sensor includes a formed sheet metal base attached to a metal chassis. One surface of the sheet metal base acts as a guide surface for a roller. A thin metal foil band is wrapped around the roller and has its ends welded to the base underneath the base. The roller is biased into a first position and is rollable on the guide surface from its first position under an applied force to cause the band to engage a firing contact. A single pin connected to the firing contact extends through the chassis and is electrically insulated from the chassis. The pin and chassis are connected to opposite electric potentials in the vehicle. When the band engages the firing contact, an electrical circuit is completed through the pin, the firing contact, the band, the base, and the chassis to activate a vehicle safety apparatus. The sheet metal base includes a calibration tab which sets the first position of the roller along the guide surface. The tab may be physically bent to select the distance through which the roller needs to travel to complete the electrical circuit.
REFERENCES:
patent: 3452175 (1969-06-01), Wilkes
patent: 3471668 (1969-10-01), Wilkes
patent: 3643048 (1972-02-01), Crow et al.
patent: 3643049 (1972-02-01), Lu Conic et al.
patent: 3672325 (1972-06-01), Harrah
patent: 3812726 (1974-05-01), Bell
patent: 3848695 (1974-11-01), Lacaze, Jr.
patent: 4167276 (1979-09-01), Bell et al.
Prior Art Sensor Shown on the Attached Drawing.
Luebke Renee S.
TRW Technar Inc.
LandOfFree
Rolamite sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rolamite sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rolamite sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-56590