Abstract: A construction for an air dome is provided wherein the entrance area is substantially blocked off except for peripheral ports. It has been found that in fuel pumps, particularly where the fuel inlet port is below the air dome, that the flow of fuel into the dome can sometimes be at such a velocity that it washes out much of the air trapped within the dome and therefore defeats the air dome purpose. It has been found that the provision of a solid disk at the entrance to the air dome prevents such air washout, fuel entry being considerably restricted and confined to points at the disk edge. In particular, the use of such a disk in conjunction with an air dome of the type having longitudinal ridges, i.e., side flutes which normally are provided for the purpose of effecting fuel passage around the outside of the air dome, is used advantageously. Thus, fuel entry into the air dome to compress air therein is not washed out and the air dome remains effective.

Abstract: An anti-static bar has its discharge points established by the serrated edge of a thin metal strip serving as a conductor and held in an insulator extending lengthwise of a channel in the supporting member.

Abstract: Federal regulations require certain safety features on road vehicles in connection with leakage from gasoline filled devices, such as fuel pumps, wherein only a certain amount of leakage over a specified time period is permitted in a barrier crash or roll over. The invention herein is particularly directed to minimizing leakage so as to conform to federal regulations insofar as fuel pumps are concerned by modification of existing check valves minimizing retooling expense by providing a backup washer spring pressed over an area of the valve disc so as to apply sealing pressure in a pair of spaced concentric areas on the valve seat. This precludes edge curling of the valve disc and ultimate leakage as well as increasing the wear life.

Abstract: In the application of working pressures, devices are used of the type having at least two members by which the working pressure is applied and a connection between them operable to vary the relationship of one of them relative to the work. Each connection includes first parts with the first part rotatably carried by the one member. Each part has an eccentric portion of a circular section with that of the first part rotatable within the eccentric portion of the second part and the second part is rotatably carried by the other pressure-applying member. Adjusting means are provided to turn the parts equally but oppositely with the members operatively connected and with the axis of the eccentric portion of the second part always in the plane of a predetermined line of force inclusive of the axis of the first part.