Patents Represented by Attorney Donald L. Beeson

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  • Configurable furniture integrated ambient lighting system and method
    Patent number: 5931556
    Abstract: A configurable furniture integrated lighting system has a plurality of interchangeable symmetric and asymmetric fixture heads for indirect lighting and a plurality of different supporting structures for supporting any one of the fixture heads at a predetermined mounting height from a variety of different support surfaces associated with the furniture system, including floor level support surfaces, desk top surfaces, book shelf surfaces, and binder bins. The described invention can be mounted virtually anywhere along the partition walls of almost any open office arrangement, with different alignments with respect to the walls being possible. Free-standing fixtures can additionally be placed as required to achieve an optimum ambient lighting distribution.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: August 3, 1999
    Assignee: NSI Enterprises, Inc.
    Inventors: Douglas J. Herst, Utkan Salman
  • Loudspeaker horn
    Patent number: 5925856
    Abstract: A loudspeaker horn for use with an acoustical driver has a rectangular throat opening with a long dimension relative to the wavelength of the sound pressure waves generated within the high frequency range of the horn. A relatively short pre-load chamber corrects the phase of the sound pressure waves over the long dimension of the throat opening. The pre-load chamber provides control over the directivity of the horn and provides a uniform frequency response with minimal distortion.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: July 20, 1999
    Assignee: Meyer Sound Laboratories Incorporated
    Inventors: John D. Meyer, Alejandro Antonio Garcia Rubio
  • Direct-indirect luminaire with improved down light control
    Patent number: 5884994
    Abstract: A direct-indirect luminaire is provided with a direct light control structure between the luminaire's light source and the down light openings in the luminaire's housing. The down light control structure has an interior light capture which extends to meet the light source and which is shaped to substantially conform to the shape of a capturable surface of the light source. The down light control structure captures and directs substantially all of the light emitted from the captured portion of the light source through the housing's down light opening to provide improved control over the down light component of the luminaire.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: March 23, 1999
    Assignee: Peerless Lighting Corporation
    Inventors: Douglas J. Herst, Peter Y. Y. Ngai
  • Merchandise display case with an improved gang lock unit
    Patent number: 5871263
    Abstract: A merchandise display case has vertically arranged compartments in a cabinet for providing a storage area and a display area, and a gang lock unit which simultaneously locks a bank of drawers in the storage area and cabinet doors covering the display area. The gang lock unit includes a rigid, vertical gang bar which carries the locking means for both the cabinet doors and the bank of drawers and which is moved between its locking position and unlocking position by means of a single accessible locking mechanism. The gang bar preferably has a rectangular or square cross-sectional shape that prevents flexure in any direction and that contributes to the smooth locking action of the gang lock unit.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: February 16, 1999
    Assignee: Trinity Engineering
    Inventors: Michael Johnston, Sergei Anderson
  • Skin test applicator
    Patent number: 5871452
    Abstract: A skin test applicator has a applicator handle (21) and separately storable test elements (13). A complimentary snap-fit attachment structure (33, 43) is provided on the applicator handle and test elements to permit the applicator handle to operatively pick up and hold one or more test elements from a suitable sterile storage tray. The skin test applicator reduces storage requirements and the amount of refuse that must be discarded immediately following the administration of a skin test for the diagnosis of an allergic response or other diagnostic test.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: February 16, 1999
    Assignee: Rachman Scientific, Inc.
    Inventors: John F. Baker, David J. Thorson, William White, Jr.
  • Slot sealing system for a pneumatic transportation system guideway
    Patent number: 5845582
    Abstract: An improved system for sealing a slot (37) in the guideway (13) of a pneumatic transportation system includes two separate pairs of sealing flaps for producing two separate opposed seal interfaces (47, 49) through which a travelling pylon (18) connecting a propulsion plate (17) to a vehicle (15) on the guideway can pass. A first pair of sealing flaps (43a, 43b) provides a negative pressure seal and a second pair of sealing flaps (49a, 49b) provides a positive pressure seal. The sealing flaps contact the travelling pylons along their distal ends only, so as to produce minimum deflection of the seal and minimum mechanical resistance against the pylon. The slot seal system of the invention is relatively easy to install from outside the vehicle guideway and produces no cavities in the top of the guideway in which moisture and debris can accumulate.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: December 8, 1998
    Assignee: Aeromovel Global Corporation
    Inventors: Oskar Hans Wolfgang Coester, Carlos Antonio Campani
  • Rotor assembly for horizontal impact crusher
    Patent number: 5833153
    Abstract: An improved rotor assembly for a horizontal impact crusher has segmented blow bars in a continuous wedge structure which overlaps the blow bar segment joints to structurally tie the blow bar segments together. Backer face plates are also provided to accommodate blow bars of different thicknesses within the same wedge slot.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: November 10, 1998
    Assignee: W. S. Tyler, Incorporated
    Inventors: Stephen B. Ackers, deceased, Donley D. Freshwater
  • Direct-indirect luminaire housing
    Patent number: D401000
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: November 10, 1998
    Assignee: Peerless Lighting Corporation
    Inventor: Douglas J. Herst
  • Cabinet door handle
    Patent number: D402529
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: December 15, 1998
    Assignee: Benson Barbecue L.P.
    Inventor: Wayne Husted
  • Luminaire
    Patent number: D404160
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: January 12, 1999
    Assignee: Peerless Lighting Corporation
    Inventors: Douglas J. Herst, Utkan Salman
  • Luminaire
    Patent number: D404161
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: January 12, 1999
    Assignee: Peerless Lighting Corporation
    Inventors: Douglas J. Herst, Utkan Salman
  • Direct-indirect luminaire housing
    Patent number: D404513
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: January 19, 1999
    Assignee: Peerless Lighting Corporation
    Inventors: Douglas J. Herst, Utkan Salman
  • Luminaire housing
    Patent number: D405906
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: February 16, 1999
    Assignee: Peerless Lighting Corporation
    Inventors: Douglas J. Herst, Utkan Salman
  • Luminaire
    Patent number: D405907
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: February 16, 1999
    Assignee: Peerless Lighting Corporation
    Inventors: Douglas J. Herst, Utkan Salman
  • Luminaire
    Patent number: D405908
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: February 16, 1999
    Assignee: Peerless Lighting Corporation
    Inventors: Douglas J. Herst, Utkan Salman
  • Barbecue grill
    Patent number: D409435
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: May 11, 1999
    Assignee: Benson Barbecue L.P.
    Inventor: Wayne Husted
  • Barbecue grill top
    Patent number: D409877
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: May 18, 1999
    Assignee: Benson Barbecue L.P.
    Inventor: Wayne Husted
  • Lighting fixture
    Patent number: D411027
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: June 15, 1999
    Assignee: Peerless Lighting Corporation
    Inventors: Douglas J. Herst, Utkan Salman
  • Barbecue grill
    Patent number: D411779
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: July 6, 1999
    Assignee: Benson Barbecue L.P.
    Inventor: Wayne Husted
  • Barbecue grill top
    Patent number: D411782
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: July 6, 1999
    Assignee: Benson Barbecue L.P.
    Inventor: Wayne Husted