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US 6,439,856 B1Granted
Inline stroke counter for air pumps
AssigneeSEH America, Inc.
InventorKenneth C. Ivey
Life of this patent
Estimating the term…
Abstract
A novel method for counting pump cycles of an air pump by detecting the air pressure differential of the air pump cycle with a differential pressure switch and attaching an electronic counter to the pressure switch to count the number of openings and /or closings detected by the pressure switch.
Claims7
An inline stroke counter for air pumps, comprising:
- a. a differential pressure switch connectable to an pneumatic pump;
- and
- b. an electronic counter connected to the pressure switch for counting pressure cycles, wherein the electronic counter receives electronic signals in the range 1 kHz to 30 Hz.
An inline stroke counter for air pumps, comprising:
- a. a differential pressure switch connectable to a pneumatic pump, said pressure switch comprised of a housing, a diaphragm element, and a signal converting element with terminals;
- and
- b. an electronic counter mounted on the pressure switch through a hole in the pressure switch housing, and connected to the signal element by wires, wherein the electronic counter receives electronic signals in the range 1 kHz to 30 Hz.
A method of electronically counting air cycles of a pneumatic, comprising the steps of:
- a. Generating electronic signals in response to differential air pressure in a pneumatic pump cycles with a differential pressure switch;
- b. Transmitting said signals to an electronic counter;
- and
- c. Counting the number of said signals using an electronic counter connected to the differential pressure switch. wherein the electronic counter receives electronic signals in the range 1 kHz to 30 Hz.
1 more element
Dependencies are inferred from the claim text.