Acceleration sensing switch of the liquid contact type having time delay structure
AssigneeBreed Corporation
InventorsDavid S. Breed, Harald S. Husby, Stanley Sung
Life of this patent
Estimating the term…
Abstract
Acceleration sensing apparatus comprises a casing having a pair of substantially perpendicular passages communicating with each other and accommodating spaced apart, normally open electrical contacts. One of the passages contains mercury which is operable to flow into the other passage in response to predetermined acceleration of the casing and bridge the conductors so as to establish a current path therebetween.
Claims10
An acceleration sensing device comprising a casing having therein a pair of substantially normal passages forming substantially a right angle to one another and confronting one another at their adjacent ends;
- a first electrical conductor in one of said passages at one end of the latter;
- a second electrical conductor in the other of said passage confronting but spaced from said one electrical conductor;
- a quantity of electrically conductive liquid occupying said one of said passages and engaging said first conductor;
- and liquid passageway means establishing communication between said passages at said right angle, whereby acceleration of said casing in one direction enables a sufficient quantity of said liquid to flow from said one of said passages into the other of said passages and bridge said conductors to establish a conductive path therebetween.
Dependencies are inferred from the claim text.