Patents by Inventor Maurice A. Black

Maurice A. Black 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: 5983578
    Abstract: A penetration-resistant modular security passway (20) includes a concrete vestibule (24), a doorframe (70), and a penetration-reactive security door (32). The vestibule (24) has a plurality of reinforcing members (36), a plurality of lifting lugs (26), and an embedded passive antipersonnel device (56). The doorframe (70) has hinge and strike jambs (108,110) attached to the reinforcing members (36). The hinge jamb (108) has a plurality of studs (124) and the strike jamb (110) a plurality of deadbolts (126) for protrusion into the door (32). The door (32) has a substruction (72), to which are affixed grates (86,92) and cladding (84,90). A girdle (100) is affixed to the cladding (84,90). Within a space (76) within the substruction (72), a metallic cable (78) is woven and a plurality of individually sealed tubes (96) containing a foaming agent (98) under pressure are suspended.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: November 16, 1999
    Assignee: Arizona Public Service Company
    Inventors: A. David Huttie, Maurice A. Black
  • Patent number: 4637533
    Abstract: A device for assisting a handicapped person in donning and removing an article of hosiery comprising a support of such size as to be accommodated in the article of hosiery, a handle for manipulating the support, and a flexible strap coupling the support to the handle. The support has laterally extending projections between which portions of the article of hosiery may be positioned to resist separation of the support and the hosiery.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: January 20, 1987
    Inventor: Maurice Black
  • Patent number: 4512542
    Abstract: A book holder for holding a book in open condition at a selected page comprises a pair of elongate limbs extending in opposite directions from a central zone and terminating at their free ends in reversely turned, page engageable fingers extending alongside and spaced from the associated limb. The limbs are coupled together in such a manner as to enable them to be adjusted relative to each other and vary the distance between the fingers. Supporting legs may be connected to the limbs to enable the book holder to support a book at an inclination to the horizontal. The legs preferably are pivoted to one another and to the limbs so as to enable the limbs and legs to be folded to a small-size unit when the holder is not being used.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: April 23, 1985
    Inventor: Maurice Black