Flow responsive counting apparatus
AssigneeAtlantic Richfield Company
InventorsJack S. Segal, Harold D. Trapp
Life of this patent
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Abstract
A flow responsive counting apparatus comprising in combination a) conduit means having an inlet and an outlet; b) means mechanically responsive to fluid flow for measuring volumetric flow of water; c) means mechanically responsive to fluid flow for totalling "on-off" water flow cycles; said conduit means interconnecting in series the means for measuring volume flow and means for totalling on-off water flow cycles. The apparatus interconnected in an appropriate water line in an automatic car wash can provide a tamper-resistant means for counting the number of vehicles washed in the automatic car wash.
Claims7
In a mechanism adapted to perform specified acts on an object, at least one of the acts involving "on-off" flow of liquid under pressure to the object an apparatus for counting the number of transactions comprising in combination
- a. conduit means having an inlet and an outlet for carrying the liquid to the object;
- b. means mechanically responsive to the liquid flow for measuring volumetric flow of water;
- c. means mechanically responsive to liquid flow for totalling "on-off" water flow cycles, the total being related in a predetermined manner to the number of transactions;
- said conduit means interconnecting in series said means for measuring volume flow and means for totalling on-off water flow cycles.
Dependencies are inferred from the claim text.