Patents by Inventor Mark B. Behrens

Mark B. Behrens 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: 6098216
    Abstract: A convertible patient transport apparatus includes a frame assembly adapted for supporting a patient. A plurality of bent pivot legs are attached to the frame assembly and mounted on respective wheels for rolling movement of the transport apparatus over a supporting surface. Each of the pivot legs includes a vertical upper portion, an intermediate portion formed at an angle to the upper portion, and a vertical lower portion formed with the intermediate portion. An actuator pivots the legs between an open position, wherein the distance between the lower portions of laterally adjacent legs is increased, and a closed position, wherein the distance between the lower portions of laterally adjacent legs is reduced. In the open position, the width of the transport apparatus is expanded to move the frame assembly over a bed of the patient. In the closed position, the width of the transport apparatus is narrowed.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: August 8, 2000
    Assignee: Theodore A. Williamson
    Inventors: Theodore A. Williamson, Mark B. Behrens
  • Patent number: 4998346
    Abstract: A unitary, axially self-locating needle bearing which may be of the drawn shell type has an inner race having a crimped flange projecting radially outwardly from the inner race, an outer race having a flange projecting radially inwardly at either end of the outer race, and a plurality of needle rollers held in a cage contained between the drawn inner race and the drawn outer race. The flange on the inner race axially locates the inner race with respect to the outer race. The crimp forms a radially outwardly projecting flange on the inner race positioned between one end of the caged needle rollers and one of the inwardly projecting flanges of the outer race. The other inwardly projecting flange of the outer race is positioned at the other end of the caged needle rollers.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: March 12, 1991
    Assignee: INA Bearing Company
    Inventor: Mark B. Behrens
  • Patent number: 4955732
    Abstract: A unitary, axially self-locating needle bearing which may be of the drawn shell type has an inner race having a crimped flange projecting radially outwardly from the inner race, an outer race having a flange projecting radially inwardly at either end of the outer race, and a plurality of needle rollers held in a cage contained between the drawn inner race and the drawn outer race. The flange on the inner race axially located the inner race with respect to the outer race. The crimp forms a radially outwardly projecting flange on the inner race positioned between one end of the caged needle rollers and one of the inwardly projecting flanges of the outer race. The other inwardly projecting flange of the outer race is positioned at the other end of the caged needle rollers.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: September 11, 1990
    Assignee: INA Bearing Company
    Inventor: Mark B. Behrens