Metal working – Method of mechanical manufacture – Electrical device making
Patent
1998-05-19
1999-02-16
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
H01H 1100
Patent
active
058708170
ABSTRACT:
A fluid pressure responsive electric switch (10) is shown having an elongated base (12) in which first and second terminals (34, 48) are mounted by dropping them into respective slots (26, 28). The terminals are provided with tabs (38, 52) to engage with a platform (30) of the base to limit motion in one direction and are in turn engaged by a guide member (62) to prevent motion in an opposite direction. The guide member (62) has a cylindrical force transfer portion (86) aligned with the weld portion (104) of a sensor assembly (92) to transfer force without adversely affecting the calibration of the sensor assembly. Electrical leads (118, 120) have connectors (126, 128) attached to an end thereof along with cylindrical gaskets (134) which form an interference fit in bores (22, 20) of the base to provide an environmental seal at the same time electrical connection is made to the terminals. In a modified embodiment a special thermal isolation fitting (140) is shown particularly adapted for use in sealed refrigeration applications.
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Hancock John T.
Sehlhorst Scott B.
Thayer James R.
Baumann Russell E.
Donaldson Richard L.
Echols P. W.
Grossman Rene E.
Texas Instruments Incorporated
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