Title: Combination knob and dial control for cold control devices

Abstract: A universal, knob-dial control member for association with the control shaft of a cold control regulator wherein the knob member is uniquely configured so as to be adaptable to be used on a plurality of cold control regulators in and of itself or alternately, adapted to have the dial member disassociatible which accommodates still other cold control regulators. The provision of the knob-dial control member in kit form, having selectable knob members, provides a means whereby inventory is substantially reduced and a service man has the ability to service a large number of cold control regulators without the need of having a large number of specialty repair and replacement parts.

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Inventors: Wooldridge, Darrel (Los Angeles, CA, US)
McKinnon, Eugene T. (Pacific Palisades, CA, US)

Application Number: 844804
Filing Date: 1977-10-25
Publication_date: 1979-01-23
Assignee: Gem Products, Inc. (Santa Monica, CA)
Primary Class(es): 116/334 74/553, 116/309
Other Classes:
US Patent Ref:

1446652	Feb, 1923	Morris	74/553.
2082091	Jun, 1937	Adams	74/553.
3241515	Mar, 1966	Franklin	116/115.
3329452	Jul, 1967	Ammon	74/553.
3410247	Nov, 1968	Dronberger	116/133.
3769933	Nov, 1973	Fox	116/133.
3902375	Sep, 1975	Herrick	74/553.

Other Refs:
Primary Examiner: Swisher, S. Clement
Assistant Examiner: Corr, Denis E.
Attorney: Mahoney, Schick & Cislo