Pulse generator unit for fuel pump register
AssigneeVeeder Industries Inc.
InventorArthur J. Wells
Life of this patent
Estimating the term…
Abstract
A pulse generator unit for a fuel pump register employs a pulser shaft driven by a pulser drive gear rotatable with a lowest order counter wheel. A permanent magnetic means at the end of the pulser shaft rotates and actuates a reed switch to produce a pulse train having pulses indicative of rotation of the counter wheel. A ratchet clutch assembly is employed to selectively permit rotation of the pulser shaft in a counting direction and a resetting direction.
Claims16
In a resettable fuel pump delivery register for registering the cost and volume of each fuel delivery and having a main frame with a pair of spaced generally parallel upright side frame members, at least one resettable counter with a bank of coaxial resettable counter wheels of increasing order mounted on a counter shaft with respective coaxial reset gears rotatable therewith, said counter shaft being axially shiftable to engage the reset gears with the counter to condition the counter for resetting, the counter being mounted on the main frame with the counter wheel bank mounted between the side frame members and with the counter shaft generally perpendicular to the side frame members for being read from one end of the register, and the lowest order counter wheel rotatable in a counting direction and an opposite resetting direction, the improvement wherein the resettable fuel pump delivery register further comprises a pulse generator unit comprising:
- a mounting assembly mounted to the frame outwardly adjacent the lowest order counter wheel;
- a pulser shaft rotatably received by said assembly;
- an input gear means to rotatably couple said pulser shaft for rotation with said lowest order wheel;
- a rotary permanent magnet mounted to said pulser shaft;
- a ratchet clutch means to selectively restrict rotation of said pulser shaft to a counting direction or permit rotation of said pulser shaft in a resetting direction;
- and
- a magnetic sensor operable by the rotary permanent magnet for generating a pulse train with a pulse for each predetermined increment of rotation of said magnet.
In a resettable fuel pump delivery register for registering the cost and volume of each fuel delivery and having a main frame with a pair of spaced generally parallel upright side frame members, at least one resettable counter with a bank of coaxial resettable counter wheels of increasing order mounted on a counter shaft with respective coaxial reset gears rotatable therewith, said counter shaft being axially shiftable to engage the reset gears with the counter wheels to condition the counter for resetting, the counter being mounted on the main frame with the counter wheel bank mounted between the side frame members and with the counter shaft generally perpendicular to the side frame members for being read from one end of the register, the improvement wherein the resettable fuel pump delivery register further comprises a pulse generator unit comprising:
- a mounting assembly mounted to the frame adjacent a lowest order wheel;
- a pulser shaft received by said assembly and rotatably driven by said lowest order counter wheel, said pulser shaft mounting a rotary permanent magnet;
- a magnetic sensor operable by the rotary magnet for generating a pulse train with a pulse corresponding to a predetermined increment of rotation of said counter;
- and
- a ratchet clutch assembly having clutch means to permit rotation of said pulser shaft in only a counting direction when said register is in a counting condition and ratchet means to permit rotation of said pulser shaft in a resetting direction when said register is in a resetting condition.
Dependencies are inferred from the claim text.