Lord Corporation

Frank O James

Christopher F Rajecki

J David Carlson

Michael J Chrzan

An elastomeric high capacity laminated (HCL) bearing for rotary wing aircraft and method of making is provided. The elastomeric HCL bearing is mold bonded using structural adhesives with a given elastomeric subassembly tensile strength between a first metal first laminate end structural bond shim and a second metal distal laminate end structural bond shim. The structural adhesive has a limited elongation and a first end tensile strength &#x2267;elastomeric subassembly tensile strength.

Elastomeric high capacity laminated rotary wing aircraft bearing for rotary wing aircraft

The invention provides a rotary wing aircraft helicopter vehicle rod end and method of making a rod end. The rotary wing aircraft rod end includes a nonelastomeric inner member having an outer bonding surface segment and an axial bore with a center bore axis, a nonelastomeric outer member having an inner bonding surface segment and an axial bore center bore axis, and molded in place alternating elastomeric shims and nonelastomeric shims connecting the nonelastomeric inner member to the nonelastomeric outer member. The rod end includes a first inner elastomeric shim bonded to the nonelastomeric inner member outer bonding surface segment and to a first inner nonelastomeric shim and a second outer elastomeric shim bonded to the nonelastomeric outer member inner bonding surface segment and to a second outer nonelastomeric shim. The nonelastomeric inner member has a molded misalignment rotary wing aircraft rod end orientation with the outer nonelastomeric outer member.

Rotary wing aircraft rod end and method of making a helicopter vehicle rod end with a precocked orientation

A bearing that includes a first bearing support member; a second bearing support member spaced from the first bearing support member, the first and second bearing support members each having a first end and a second end; and a resilient member between the first and second bearing support members, the resilient member having a radial thickness, the radial thickness varying between the first and second ends of the bearing support members, and whereby the bearing wears substantially constantly during its useful life.

Pitch bearing

A sealless magnetorheological fluid device is disclosed in the form of an engine mount which comprises a baffle plate (58) and a solenoid type coil (40) wrapped within a housing (20). The baffle plate diverts the flow of fluid into a more intimate contact with the coil to influence the characteristics of the fluid. The mount also comprises a first chamber (94), an elastomeric element 90 bonded to an attachment collar (88) and housing (20). An elastomeric bladder (95) is bonded to a lower surface of the housing to define a second chamber (96). Orifices (98) in housing (92) operate with coil (40) to define a valve for controlling the flow of the MR fluid.

Magnetorheological fluid devices

This invention relates to sealless designs of magnetorheological fluid dampers. With these sealless designs a piston rod extends above and below a piston head within a cylindrical housing and has frustoconical elastomer elements attached to and between the rod and housing to allow translation of the piston head and rod. The piston head has a coil contained radially therein that produces magnetic flux in and around the piston. The advantages of utilizing an MR fluid according to the invention include magnetic fields which are easily produced by low voltage electromagnetic coils, damping effects which are velocity independent, and higher yield strength obtained by the MR fluid capable of generating greater damping forces.

Growing community of inventors

Girard, PA, United States of America

Frank O James