Patents by Inventor Darwin D. Hostetler

Darwin D. Hostetler 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: 5913390
    Abstract: A drum brake (10) having first (14) and second (16) brake shoes retained on a backing plate (20) and moved into engagement with a drum (18) to effect a brake application corresponding to a desired braking input supplied to a actuator member (28) is disclosed. The actuator member (28) has a housing (50) with a first bore (54) therein connected to a cross-bore (56). A pinion (58) located in the first bore (54) has a shaft with first end (60) and a second end (62). The shaft has teeth (58) thereon adjacent the first end (60) and a gear (64) connected to the second end (62). First (74) and second (76) racks which are located in the cross-bore (56) have teeth (67,67') thereon which mesh with the teeth (68) on the pinion (58). A first linkage member (28) connects the first rack (74) with the first brake shoe (14) while a second linkage member (28') connects the second rack (76) with the second brake shoe (16).
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: June 22, 1999
    Assignee: Robert Bosch Technology Corp.
    Inventor: Darwin D. Hostetler