Tokheim Corporation

Poly Concrete Forms, Inc.

Armin E Mittermaier

David C Rowan

John S Loy

Timothy K Crum

Donald E Rhodes

Lawrence G Nicklin

An assembly for receiving poured concrete including a non-metallic form which surrounds an inner cavity and is capable of supporting poured concrete. In one particular embodiment, the assembly is composed of individual segments which are joined together to produce a rigid concrete form. The assembly is utilized as an upstanding island for location and placement of fuel dispensers.

Plastic concrete form

A liquid fuel filter system for use in fuel dispensing stations including a ball valve assembly and replaceable strainer cartridge permitting strainer cartridge replacement even if the associated fuel pump is activated. The ball valve assembly seals the inlet port of the filter housing thereby disabling the flow of fuel through the housing when the strainer cartridge or filter housing cap are removed. A check valve prevents fuel from flowing back thorough the filter system outlet port into the filter housing. A pressure valve disposed in the check valve prevents possible harmful pressure build up.

Dispenser interlock fuel filter system disabled in response to filter

A liquid fuel dispensing system having a fuel reservoir and a plurality of remote fuel dispensers, each of which including a suction pump and a pressure regulator valve positioned in the fuel conduit on the inlet side of the suction pump. A pressure relief passage is positioned in the fuel conduit in parallel with the regulator valve. When the vapor pressure of the fuel on the inlet side of the regulator valve exceeds a predetermined pressure, the pressure relief valve opens to permit the flow of fuel through the relief passage within the conduit, thus bypassing the regulator valve.

Pressure relief for vacuum operated valve

A submerged pump manifold for a liquid fuel dispensing system. The pump manifold includes a chamber for housing a filter cartridge and a cover attached to the top of the chamber. An interlock device is removably attached to the cover such that the device must be removed upon removing the cover. The interlock device is attached to a plug-type connection on the pump manifold so that as the interlock device is rotated away from the cover, the plug-type connection is moved from its plugged-in position to its unplugged position, thereby electrically disabling the submerged pump while the cover is removed.

Submerged pump manifold with electrical interlocked changeable filter

A hose clamp for clamping a swivel hose in a fuel dispensing installation. The hose clamp includes a breakable portion by which the hose clamp is connected to a retrieving cable. When sufficient force is placed on the cable, the hose clamp will break away from the cable thereby releasing the hose from the dispensing installation.

Growing community of inventors

Fort Wayne, IN, United States of America

Armin E Mittermaier