Title: Bistable clamping mechanism for an indicating needle of an instrument

Abstract: An instrument having an indicating scale and a pointer movable in relation thereto is provided with a pointer clamping mechanism having a bistable retainer that cooperates with a manually operable actuating member to selectively retain the clamping member in either its pointer-clamping position or in a stored position after it is moved to one of such positions by the actuating member. Positive movement of the clamping member between its two positions is achieved by a connector fastened directly to the clamping member and coupled to the actuating member in a manner that causes the connector to be resiliently loaded when the clamping member is moved away from its stored position.

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Inventors: Kernander, Warren N. (Boxford, MA, US)
Schultz, William J. (Lynnfield, MA, US)

Application Number: 730776
Filing Date: 1976-10-08
Publication_date: 1977-08-02
Assignee: General Electric Company (Schenectady, NY)
Primary Class(es): 116/294
Other Classes:
US Patent Ref:

2408944	Oct, 1946	Miller	116/136.
2648254	Aug, 1953	Stimson	116/136.
2982190	May, 1961	Fischer	354/61.
3087380	Apr, 1963	Greger	324/157.
3181498	May, 1965	Nankervis	116/129.
3254533	Jun, 1966	Tongret	73/362.
3403656	Oct, 1968	Barry	116/129.
3529570	Sep, 1970	Engelhard	116/129.

Other Refs:
Primary Examiner: Swisher, S. Clement
Assistant Examiner: Corr, Denis E.
Attorney: Myles; Vale P.