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US RE29,511 EGranted
Parking meter
OwnerBurrell R. Rubensteininventor
Life of this patent
Estimating the term…
Abstract
A parking meter which electrically indicates "remaining time" and which electrically operates only in the presence of a vehicle and when there is "paid-for" time on the meter. Thus, for example, unused time by one departing motorist is cancelled.
Claims6
A parking meter comprising:
- counting means comprising:
- an electrical down counter,
- first input means responsive to a selected input for initially setting said down counter to a selected count, and
- second input means for providing clock input signals to said down counter, whereby with each signal said down counter is counted down a selected count;
- coin-operated switching means including at least one coin switch and means responsive to the receipt of a particular coin for operating said switch and providing a selected count input to said first input means of said down counter;
- vehicle detection means responsive to the detection of the presence of a vehicle for applying a circuit operating bias to at least said counting means;
- clock means for providing electrical pulses at a selected time rate to said second input means;
- and
- readout means responsive to the output of said down counter for visually indicating an output state of said down counter.
6 more elements
A parking meter comprising:
- counting means comprising:
- an electrical down counter,
- first input means responsive to a selected input for initially setting said down counter to a selected count, and
- second input means for providing clock input signals to said down counter, whereby with each signal said down counter is counted down a selected count;
- coin-operated switching means including at least one coin switch and means responsive to the receipt of a particular coin for operating said switch and providing a selected count input to said first input means of said down counter;
- clock means for providing electrical pulses at a selected time rate to said second input means;
- and
- readout means responsive to the output of said down counter for visually indicating remaining paid-for time.
5 more elements
Dependencies are inferred from the claim text.