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US 5,290,978 AGranted
Programmer/timer with rapid advance
AssigneeEaton Corporation
InventorsGeorge Georgacakis, Richard Bogda
Life of this patent
Estimating the term…
Abstract
An electromechanical appliance programmer has a cam drum indexed by primary advance motor drive for sequentially operating plural appliance function switches. The cam shaft is axially slidable by user actuation and moves an annular cam ring for moving a slider for actuating and de-actuating a line power switch. An internally-toothed gear is attached internally to the cam drum web and is engaged by a drive pinion of a second motor drive for effecting rapid advance of the cam drum.
Claims10
A programmer/timer for an electrically operated appliance comprising:
- (a) housing means;
- (b) a plurality of appliance load function switches associated with said housing means;
- (c) first cam means rotatable on said housing means operable upon rotary advancement for sequentially actuating and de-actuating said function switches in accordance with a predetermined program, said first cam means including gear means rotatable therewith;
- (d) primary advance means associated with said housing means, including a primary motor and ratchet and pawl means, operable for effecting said advancement, said first cam means including override means operable to permit user manual advancement;
- (e) rapid advance means associated with said housing means, including a second motor, operable to engage said gear means cause said ratchet to overrun said pawl means and advance said cam means at a rate substantially greater than said primary advance means;
- (f) line switch means associated with said housing means and operable to switch power to said motors and said load switches;
- and,
- (g) second cam means disposed concentrically with said first cam means, said second cam means user-movable in a direction generally axially with respect to said first cam means, said second cam means operable for actuating and de-actuating said line switch means.
5 more elements
Dependencies are inferred from the claim text.