Back to results
US 4,641,125 AGranted
Meter beater timer
OwnerNastazio Pesainventor
Life of this patent
Estimating the term…
Abstract
A meter beater timer is provided which alerts the user when a pre-determined time interval has expired so that he can return to the meter and deposit additional coins if necessary. Unlike previous timers, the user is reminded to set the timer when he withdraws the ignition key from the ignition. The key is attached to a key ring and to a key chain which retracts into the timer housing when the key is removed from the ignition depressing a plunger which sets off an alarm. An electronic version and a mechanical version are provided.
Claims4
A meter beater timer, comprising in combination:
- (a) a timer housing;
- (b) a interval timer, contained in said timer housing, wherein said interval timer is set to a preset time interval and counts backward from said preset timer toward zero;
- (c) an alarm, contained in said timer housing;
- (d) a stop button operatively coupled to said alarm, wherein said alarm sound when said interval timer has reached zero and wherein said alarm is turned off by depressing said stop button;
- (e) a retractable chain connected to a key ring, such that said retractable chain is extended by the weight of said housing when a key attached to said key chain is inserted into an automobile ignition, and retracts into said timer housing when said key is removed from said ignition thereby releasing tension on said key and said key chain;
- and,
- (f) means for activating said alarm when said key is removed from said ignition and said retractable chain retracts.
4 more elements
Dependencies are inferred from the claim text.