Abstract: An improved counter wheel assembly comprising an indicia wheel, a reset gear, a reset control mechanism for resetting the indicia wheel to a zero position, a drive gear, and a drive clutch for selectively engaging the indicia wheel to the drive gear. In one form, the drive clutch comprises an elongated pawl engageable with a frusto-conical surface integral with the drive gear and adjacent to and immediately inwardly of the rim of the indicia wheel. In a second embodiment, the drive clutch means comprises a pair of substantially identical V-shaped pawls that pivot in tandem to selectively engage serrations of a substantially cylindrical engagement surface.

Abstract: A gasoline pump computer reset lock apparatus has a mounting bracket for being attached inside a gasoline pump housing. A bolt or plunger is moveably positioned in a plunger housing attached to the mounting bracket. The plunger is in a locked position when one of its ends is closed against a stop and is in an unlocked position when that one end is spaced back from the stop. A control apparatus is coupled to move the plunger to the locked or unlocked positions. One end of a link is attached to a rotatable crank member. The crank is coupled to a reset lever so that the link moves into the space between the plunger and the stop when the reset lever is rotated. The link is moveably attached to the mounting bracket so that when the plunger is in the locked position against the stop, the forward end of the link encounters the plunger and is prevented from moving into the space.

Abstract: A fuel pump register cost counter having a transfer pinion permitting count transfers from the units to the tens counter wheel at a substantially predetermined maximum torque through a torsion spring connection between input and output gear sections of the transfer pinion and which prevents transfer overtravel and oscillation and provides for accurately locating the tens counter wheel.

Abstract: A fuel dispenser with a resettable register having a safety limit mechanism for limiting the amount of fuel dispensed by means of a gear trip mechanism indexed by the register to trip a shut-off valve after an adjustable safety limit is dispensed. The trip mechanism is reset for a succeeding delivery automatically by the register reset mechanism during the register reset cycle or manually by a reset push-button on the dispenser.

Abstract: A resettable register counter wheel assembly with a modified reset gear control mechanism having a modified reset gear pawl pivotal about an axis transverse to the wheel axis for selectively engaging and disengaging a reset gear and a reset control pawl pivotally mounted on the wheel about an axis parallel to and offset from the wheel axis and extending between the reset gear pawl and wheel shaft for pivoting the reset gear pawl outwardly with the shaft and for accurately locking the wheel to the shaft in its fully reset position.

Abstract: In order to increase the "sale" or "cost" registering capacity of a standard, conventional three-wheel register (counter) used in gasoline dispeners, a modified price wheel has been developed as a substitute for the lowest-order price wheel of a conventional register. This new wheel carries indicia from zero to 99 and during counting makes one revolution for every one hundred cents' worth of gasoline dispensed. The new wheel has an antibacklash arrangement for eliminating inaccuracies during the counting mode, and has an improved reset stop and a linkage mechanism associated therewith, for providing accurate resetting and for preventing improper operation during the resetting mode.

Abstract: A register designed to count and display cost on a gasoline dispensing pump. The register has a 100 cent wheel which is driven by a stepping motor. As the 100 cent wheel rotates it biases a spring which, after the 100 cent wheel has completed a revolution, incrementally drives a dollar register wheel. Likewise, as the dollar wheel rotates it biases a spring which, after the dollar wheel has completed a revolution, incrementally drives a 10 dollar register wheel. The energy stored in the springs is also utilized to reset the register to zero, such that all of the power utilized to both drive and reset the register is supplied by the stepping motor.

Abstract: A fuel delivery pump with resettable volume and cost counters having counter resetting means with a zero detent mechanism for accurately positioning the lowest order number wheels of the counters at zero.