Jackel Incorporated

Lily Corporation

Ball Bearing Pump, Inc.

John J Hoffman

John F Trout

Raymond P Haluda

Charles Lord

A hydraulic power unit combining a number of cylinders using ball bearings to displace hydraulic fluid sequentially with controlled flow to a number of hydraulic actuators. A power unit could combine a minimum of two cylinders through ten or twelve cylinders in a practical hydraulic power unit. The inherent bi-directional nature of this combination of fluid displacing ball bearings, cylinder and porting arrangement offers a unique opportunity to change fluid flow by reversing input drive. The torsional reaction component of the opposed reciprocator drives is utilized to rotate the core cylinder assembly to realign outlet and return fluid flow. This realignment can be used to reverse the fluid circuits or redirect the fluid to other work.

Hydraulic pump with ball bearing pistons

An improved lid for attachment to a sewage and waste water basin, which lid contains the safety provided by two sections having overlapping interlocking edges in which one section may be removed for access to the basin without the necessity of removing the other section.

Split lid for sewage basins

A nozzle for injecting adhesive materials into cracks in concrete, mortared joints in brick or stone walls, in timber, or in similar materials, the nozzle having a body with a center channel for conducting the resin from a suitable pump into the cracked surface. The nozzle may be surface mounted or mounted in a drilled hole, and has a proximal end adapted for connection to a conventional coupling and a distal end surrounded by spaced lugs which facilitate insertion of the distal end into a hole and aid in retaining the nozzle therein. The spacing between the lugs and a plurality of grooves in the distal end communicating with the center channel minimize back pressure when surface mounted and resist back pressure when mounted in a hole, and provide an even diffusion of the resin into the void. A collar is normally provided near the distal end for partially or completely sealing the installation and for retaining an adhesive gel or putty cone which further seals the installation. The collar may also serve as an abutment against which a suitable driver can be placed to drive the nozzle into a hole.

Injection nozzle for adhesive materials

A reinforced plastic tank and method for producing the same, in which a steel plate base is provided for minimizing the bottom deflection of the tank under hydrostatic pressure when buried under ground. The base has a plate member with an annular flange extending outwardly from the top surface thereof. A plastic cup is disposed within the area surrounded by the flange, and an epoxy adhesive is injected between the cup and the steel plate and flange to adhere the cup to the steel. The side wall of the cup extends past the edge of the flange. The base assembly is then mounted on a mandrel and the fiberglass side wall is formed over the steel flange and the exposed side wall of the cup, and extends from the steel base to the desired height of the tank.

Growing community of inventors

South Bend, IN, United States of America

John J Hoffman