Patents by Inventor William P. McRae

William P. McRae 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: 4270817
    Abstract: A storage and dispensing cabinet in which films, tape cassettes or similar articles are stored in parallel open-ended slots. The cassettes are held in the slots and selectively ejected by an ejector mechanism formed by resilient retention members at the front ends of the slots and resilient drive members at the back ends of the slots, the retention and drive members being secured to a base that provides a raised platform on which the cassettes are supported. The retention members for the various slots are integrally formed as a single piece, the drive members being integrally formed in a similar manner, but separately from the retention members. When a cassette is to be ejected, the appropriate retention member is depressed, causing an abutment that normally engages the leading edge of the cassette to be withdrawn. The drive member then springs forward to its relaxed position, partially ejecting the cassette so that it can be withdrawn.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: June 2, 1981
    Inventor: William P. McRae
  • Patent number: 4087138
    Abstract: A storage and dispensing cabinet in which tape cassettes or other similar articles are slidably received in parallel slots formed by a housing. Each slot is provided with an integrally formed ejector that includes a rocker positioned beneath the floor of the slot, an ejection arm that extends into the slot along the back of the cassette, a retaining portion that normally extends along the open front end of the slot to positively retain a cassette and an actuator that is accessible from the exterior of the housing. By depressing the actuator, the rocker can be flexed so that the retaining portion moves away from the front of the cassette, while the ejecting arm, which remains substantially unflexed, pushes the front edge of the cassette through the open end of the slot so that it can be grasped and removed. The entire housing can be mounted on a stand so that it can be rotated between an open position and a closed position.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: May 2, 1978
    Inventor: William P. McRae