Sun Oil Company of Pennsylvania

Stephen M Fromnick

Robert Mayer

Einar T Young

Robert H Livesay

William J Barrow

A test fixture designed to measure selected electrical parameters of a wax which is utilized as a dielectric in telephone transmission lines. The test fixture is mounted on top of and plugged directly into a commercially available Q (quality factor) meter. A high Q coil is also mounted on top of and plugged directly into the Q meter. A T-shaped ground shield plate separates the test fixture from the coil, and also covers the front of both components to shield them from stray capacitance and interference from operator proximity and system configuration.

Test fixture

In a liquid dispensing apparatus, a train of control pulses are produced at a rate representative of equal fractional parts of a unit volume of the liquid being dispensed, and for each of these control pulses a divider gates to an output circuit a number of pulses (derived from a continuously-operating generator) digitally equal to the price per unit volume of the liquid being dispensed. The gated pulses appearing in said output circuit are counted in continuous fashion by a counter which, during a sustained operation, produces a resultant output pulse at the conclusion of every one thousand pulses fed to its input. These latter output pulses are fed to decade counters which drive the final display devices for exhibit or indication of the total price.

Price calculating and indicating circuit for dispensers

A blending-type motor fuel dispensing apparatus operates to blend together, in various proportions, two liquid motor fuels (gasolines) of different octane ratings, to produce various grades of product. The quantity and cost displays, and also the automatic control of the blend during dispensing, are based upon the summation of two sets of pulses, the number of pulses in each set being proportional to the integrated flow rate of a corresponding one of the two fuels. The pulses are counted and multiplied by a price per gallon, which has been previously set for the grade being dispensed, to provide a cost display. A pulse comparison circuit, which compares pulses representative of the flow of one fuel with a percentage (settable for each blend) of the summed pulses, is used to control the proportioning of the two fuels. Selection of a desired product for dispensing (one out of five products, for example) is made by operating an appropriate pushbutton; when this is done, the proportioning control valves are automatically pre-positioned to a setting corresponding to the particular selection that has been made.

Growing community of inventors

Glen Riddle, PA, United States of America

Stephen M Fromnick