Electrical resistors – Resistance value responsive to a condition – Force-actuated
Patent
1992-10-16
1994-10-04
Lateef, Marvin M.
Electrical resistors
Resistance value responsive to a condition
Force-actuated
338 36, 338 43, H01C 1010
Patent
active
053530039
ABSTRACT:
A force sensor is provided which incorporates a pressure transducer disposed within a housing structure. A force transmitting means, such as a shaft slidable within an opening, is provided to communicate force from an external source to a diaphragm of a pressure sensor. An elastomeric conductor is disposed between electronic components on the diaphragm of a pressure sensor die and conductive leads that are used to communicate signals from the pressure sensor die to components external to the present invention. In certain preferred embodiments, the present invention provides a preselected quantity of resilient material between a first end of the slidable shaft and the diaphragm of the pressure sensor die. Other embodiments place the first end of the shaft in direct contact with the diaphragm. The travel of the force transmitting shaft within an opening of the housing structure can be limited either by limiting the amount of extension of the shaft outside of the housing or, alternatively, by providing a travel limit member attached to the shaft and limited in its extent of travel within the housing structure.
REFERENCES:
patent: 3790870 (1974-02-01), Mitchell
patent: 3828294 (1974-08-01), Baba et al.
patent: 3993150 (1976-11-01), Brosh et al.
Honeywell Inc.
Lanyi William D.
Lateef Marvin M.
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