Locks – Operating mechanism – Combination
Patent
1989-11-30
1991-04-02
Wolfe, Robert L.
Locks
Operating mechanism
Combination
70327, E05B 6300
Patent
active
050038028
ABSTRACT:
A combination lock dial ring and rotatable dial assembly for combination locks and the like designed to provide limited range top reading of the dial indicia and graduations, including a rotatable dial component having a circular dial formation and a knob formation integral therewith, wherein the dial formation has a peripheral flange formation providing a cylindrical outer surface on which dial graduation marks and numeral indicia are provided. A dial ring member includes a generally circular base wall portion and an interrupted cylindrical annular shield portion defining a forwardly opening cylindrical well to receive said dial formation nested therein. An annular detenting land formation is provided inwardly adjacent the cylindrical shield portion defining a detenting surface having a number of dial graduation marks. A resilient biased detenting plunger is provided in the dial peripheral flange formation to interact with the detenting slots to locating the graduation marks in precise alignment with a fixed index mark on the dial ring.
REFERENCES:
patent: 430145 (1890-06-01), Peck
patent: 1989780 (1935-02-01), Woodward
patent: 3045466 (1962-07-01), Herlong
patent: 3436941 (1969-04-01), Patzick
Beatty Scott M.
Bishop John R.
Sargent & Greenleaf, Inc.
Wolfe Robert L.
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