Patents by Inventor Roger W. Oltmanns, Jr.

Roger W. Oltmanns, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4809825
    Abstract: The brake shoe retainer comprises a retainer (30) having a substantially flat portion (34) which is attached by rivets (32) to the plate (20) of the inner brake shoe (22). The substantially flat portion (34) extends into a plurality of resilient legs (36), each resilient leg (36) having an angled base portion (38) extending from the substantially flat portion (34) to a leg portion (40) disposed substantially orthogonally relative to a plane of the substantially flat portion (34). Each resilient leg (36) includes an end portion (42) extending from the leg portion (40), the end portion (42) angled inwardly toward the substantially flat portion (34). Each leg portion (40) includes a lanced dimple (44) which extends outwardly away from the substantially flat portion (34), the lanced dimple (44) capable of biting into the surface (14) of an opening (12) within a piston (10) so that the plate (20) and brake shoe (22) are coupled to the piston (10) for movement therewith.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: March 7, 1989
    Assignee: Allied-Signal Inc.
    Inventors: Roger W. Oltmanns, Jr., William E. Sherman, II
  • Patent number: 4560037
    Abstract: A spring for a disc brake wherein a caliper cooperates with a pair of friction elements to engage the latter with a rotor during braking. A torque member carries the caliper relative to the rotor and opposes movement of the pair of friction elements with the rotor. The spring extends from the caliper to one of the pair of friction elements to releasably attach the latter to the caliper and also bias the one friction element into a substantially anti-rattle abutment with the torque member whereby rattling noises for the one friction element are reduced or eliminated.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: December 24, 1985
    Assignee: Allied Corporation
    Inventors: Bert A. Gumkowski, Roger W. Oltmanns, Jr.
  • Patent number: 4393963
    Abstract: A floating-caliper disc brake (10) includes a non-rotating torque member (36) which carries the caliper (22) in fixed radial position relative to the disc (12) via a pair of resilient assemblies (50). The torque member and caliper each have matching grooves (44, 46) which, when placed in registry, define a pair of apertures (48) between the caliper and the arms (38, 40) of the torque member. The resilient assemblies are received in the apertures (48) so as to yieldably space apart the caliper and the torque member. Brake torque is transferred from the caliper to the torque member by abutment surfaces defined on the caliper and on the torque member. The resilient assemblies provide for ready axial movement of the caliper relative to the torque member in the brake release condition by providing a light spring force which centers the caliper between the arms of the torque member.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: July 19, 1983
    Assignee: The Bendix Corporation
    Inventors: Roger W. Oltmanns, Jr., Larry A. Portolese