Switch with low pre-travel and high overtravel

Details Switch with low pre-travel and high overtravel Switch with low pre-travel and high overtravel

2008-07-15

2008-07-15

Enad, Elvin (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Actuators

C200S520000, C200S341000

Reexamination Certificate

active

07399938

ABSTRACT:
A low-profile robust switch having low pre-travel and high overtravel is provided through the use of counteracting biasing elements that operate upon the actuating area of the switch in the absence of externally applied forces. These biasing elements set the switch very close to its actuation point. In the disclosed embodiments, these counteracting biasing elements include a lever and at least one spring which are arranged to provide a low-profile switch.

REFERENCES:
patent: 4095070 (1978-06-01), Simpson
patent: 4965420 (1990-10-01), Phillips et al.
patent: 5302789 (1994-04-01), Hellman et al.
patent: 5359163 (1994-10-01), Woodard
patent: 5574265 (1996-11-01), Falcon
patent: 6100483 (2000-08-01), Horie et al.
patent: 6717085 (2004-04-01), Wang
patent: 6791038 (2004-09-01), Lai
patent: 6861604 (2005-03-01), McSwiggen
Honeywell, Micro Switch Sensing and Control, Basic Switches Auxiliary Actuators Standard Basic, Created Dec. 20, 1996, Modified Mar. 5, 1996. Obtained from http://www.flamecorp.com/pdf—files/actuators—13.pdf.
Sacramento Electronic Supply, Sacramento Electronics : Product Detail, Micro Switch : Basic Pin Plunger, http://stores.sacelec.com/sacramentoelectronics/detail.jsp?name=B27RQT, Apr. 6, 2006.

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