Patents by Inventor Dennis S. Holt

Dennis S. Holt 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: 7641517
    Abstract: A lamp base has a projection that carries lamp contacts and has an outer surface formed with retaining formations arrayed with irregular spacing. A socket forms a recess into which the projection can be inserted with play and apertures provided with contacts engageable with the lamp contacts. Retaining formations in the socket fit with the lamp-base retaining formations in only one defined angular alignment of the lamp base and the socket. The projection has a central plug projecting toward the socket and forming a lamp key coded for a predetermined lamp wattage. The socket has a hole corresponding to the plug and itself forming a socket key coded for the maximally admissible lamp wattage for the socket. The lamp base only fits into the socket when the lamp wattage indicated by the lamp key does not exceed the maximally admissible lamp wattage defined by the socket key.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: January 5, 2010
    Assignees: BJB GmbH & Co. KG, Osram Sylvania Inc.
    Inventors: Karl-Wilhelm Vogt, Tobias Brown, Markus Pieper, Albert M. Cavallaro, Roger B. Hunt, Jr., Dennis S. Holt
  • Publication number: 20090203260
    Abstract: A device for holding a compact fluorescent lamp in a light fixture with a socket 10 and a lamp base is shown and described. The bayonet-type fixing of the lamp base in a socket 10 is effected by means of a plug-and-rotate motion. In order to give manufacturers of light fixtures the possibility of manufacturing light fixtures for lamps with a predetermined or maximally admissible lamp wattage, the invention proposes a key system with seven key pairs. Each key pair comprises a lamp key and a socket key and characterizes a predetermined lamp wattage. Concretely speaking, the socket key is a lug arranged in a hole and the lamp key is a plug corresponding to the socket hole with a outwardly open cutout. In addition, a key system for making predetermined lamp types recognizable is described.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 13, 2009
    Inventors: Karl-Wilhelm Vogt, Tobias Brown, Markus Pieper, Albert M. Cavallaro, Roger B. Hunt, JR., Dennis S. Holt
  • Publication number: 20090045717
    Abstract: A special purpose lamp (12) (SPL) and a socket (14) therefore, the SPL (12) having a light source (16), a base (18) connected to the light source. The base (18) has electrical connectors (20) and a negative key (22). The socket (14) includes a pocket (23) for receiving the base (18), receptors (24) for receiving the electrical connectors (20) and a positive keyway (26) for receiving the negative key (22). In a preferred embodiment, the base (18) has a portion (18a) that is substantially rectangular in cross-section and the negative key (22) is associated with a corner (18b) of the portion (18a). Lamps so constructed can fit older sockets while older lamps will not fit the sockets of the invention.
    Type: Application
    Filed: August 17, 2007
    Publication date: February 19, 2009
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Albert M. Cavallaro, George W. Mortimer, Dennis S. Holt
  • Patent number: 4280253
    Abstract: A method and apparatus for collecting fibrous material (14) comprises distributing the fibrous material (14) onto a collection surface (18) to form a pack (20), and intercepting a portion of the fibrous material (14) during formation of the pack (20) with a plurality of spikes (24) extending from the collection surface (18). The spikes (24) partially penetrate the pack (20) and retain the intercepted fibrous material (14) in the upper portion (27) of the insulation pack (20).
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: July 28, 1981
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Dennis S. Holt