Patents Assigned to Grote & Hartmann
  • Patent number: 4077698
    Abstract: The conductor claw includes a bent bottom section and claw arms outwardly adjoining the bent bottom section at the two sides thereof. The claw arms are bent towards the longitudinal axis of the conductor claw. The end sections of the claw arms are curved. Each claw arm includes intermediate the curved bottom section of the conductor claw and the curved end section of the respective claw arm a straight section which merges tangentially into the respective curved end section. Each claw arm has at the bend therein an inner knee and an outer knee, and each curved end section of the claw arms has an inner curve and an outer curve. The centers of the inner and outer curves of each curved end section are located on a first line spaced from each other a distance corresponding to the thickness of the material of the conductor claw. The first line extends parallel to a second line which passes through both the inner and the outer knee of the respective claw arm.
    Type: Grant
    Filed: December 8, 1976
    Date of Patent: March 7, 1978
    Assignee: Grote & Hartmann
    Inventors: Alfred Konnemann, Rudolf Reinertz
  • Patent number: 4040713
    Abstract: A one-piece double spring contact has a base portion formed as a substantially tubular flattened element with a mutually parallel upper and lower wall portion and rounded sidewalls. Spring arms extend from the upper and lower walls and a claw portion extends from the lower wall at the end opposite the spring arms. The spring arms and the claw portion are offset in outward direction and a retaining spring arm is formed out of the material of the lower wall portion.
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: August 9, 1977
    Assignee: Grote & Hartmann
    Inventor: Alfred Konnemann