U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Magnetic switching device for contact-dependent and contactless switching

Patent 4296394 Issued on October 20, 1981. Estimated Expiration Date: Icon_subject October 20, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2951129

3052778

3055999

3056000

3065366

3194912

3243543

3703695

3854109

Inventor

Application

No. 05/870846 filed on 02/13/1978

US Classes:

335/207, Plural magnets200/404, Magnetic snap200/468, Single snap335/205, PERMANENT MAGNET-ACTUATED SWITCHES335/206Plural switches

Examiners

Primary: Broome, Harold

Attorney, Agent or Firm

International Classes

H01H 5/00 (20060101)
H01H 5/02 (20060101)

Abstract

A magnetic switching device comprising a drive member and a slave member having magnetically attractive surfaces, the two members move angularly with respect to one another so as to bring the magnetic surfaces in and out of contact with one another.

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