Patents by Inventor Hartmut S. Engel

Hartmut S. Engel 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: 7465070
    Abstract: The invention relates to an illumination device which comprises a plurality of downlight reflectors (1) that are impinged upon by illumination means and that have respective front reflector openings (2) pointing in the direction of illumination. The invention is characterized in that at least two downlight reflectors can be impinged upon by a common illumination means (5) via respective rear reflector openings.
    Type: Grant
    Filed: November 26, 2004
    Date of Patent: December 16, 2008
    Inventor: Hartmut S. Engel
  • Publication number: 20080266851
    Abstract: The invention relates to a built-in lamp comprising a holder for fastening in an installation surface, in particular in a room ceiling, a bulb fitting and a reflector, wherein the reflector consists of at least a first reflector region which is followed in the direction of illumination by a second reflector region which is releasable from the first reflector region to permit a bulb change.
    Type: Application
    Filed: November 26, 2004
    Publication date: October 30, 2008
    Inventor: Hartmut S. Engel
  • Publication number: 20080186719
    Abstract: A light fitting, particularly a built-in light fitting for ceilings and/or walls, includes an embeddable housing for receiving lighting means, a reflector, a housing frame, a functional frame, which can be detached at least partially from the housing frame and a locking device, which acts between the housing frame and functional frame. The locking device includes at least one wire spring, the wire spring being provided with a spring section extending between two locking elements formed in end areas of the wire spring. The locking elements cooperate with a respective locking receiving element in the functional frame. A wire limb is respectively formed between the spring section and locking elements. When the wire limb is pivoted and the spring section is deformed as a result, it is possible to modify the relative position of the locking elements relative to each other.
    Type: Application
    Filed: September 30, 2005
    Publication date: August 7, 2008
    Inventor: Hartmut S. Engel
  • Publication number: 20080130291
    Abstract: A built-in lamp includes a housing and a holder for fastening in a built-in surface, such as a room ceiling. The built-in lamp also includes a light source socket for holding a light source and a light source region and a direct light reflector. The direct light reflector has a direct light reflector opening which is disposed in the direction of illumination which defines a direct light exit region and which is surrounded at least reasonably by a diffused light exit region. The direct light reflector has a rear opening. The head reflector is disposed on the side of the light source region remote from the direct light exit region.
    Type: Application
    Filed: January 23, 2006
    Publication date: June 5, 2008
    Inventor: Hartmut S. Engel
  • Publication number: 20080025021
    Abstract: The invention relates to an illumination device which comprises a plurality of downlight reflectors (1) that are impinged upon by illumination means and that have respective front reflector openings (2) pointing in the direction of illumination. The invention is characterized in that at least two downlight reflectors can be impinged upon by a common illumination means (5) via respective rear reflector openings.
    Type: Application
    Filed: November 26, 2004
    Publication date: January 31, 2008
    Inventor: Hartmut S. Engel
  • Patent number: 6523974
    Abstract: A lamp has a light housing and a light cover intended to restrict dazzle, wherein the lamp cover comprises at least one areal element having a pre-selectable light transmission and made of elastic material which extends between the end walls of the lamp housing and is fixable in complementary recesses in the face walls via coupling lugs after an elastic deformation resulting in a shortening and a subsequent relaxation.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: February 25, 2003
    Inventor: Hartmut S. Engel
  • Publication number: 20020003698
    Abstract: A lamp is described comprising a light housing and a light cover intended to restrict dazzle, wherein the lamp cover comprises at least one areal element having has a pre-selectable light transmission and made of elastic material which extends between the end walls of the lamp housing and is fixable in complementary recesses in the face walls via coupling lugs after an elastic deformation resulting in a shortening and a subsequent relaxation
    Type: Application
    Filed: March 19, 2001
    Publication date: January 10, 2002
    Inventor: Hartmut S. Engel
  • Patent number: 5967646
    Abstract: A round reflector lamp is described in the form of a hanging lamp or built-in lamp in which the light flux emerging from the lighting means is split up by a reflector member which surrounds a predeterminable region of the free end of the elongate lighting means into a bundled, downwardly directed central light flux and into a radial light flux directed towards the round reflector.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: October 19, 1999
    Inventor: Hartmut S. Engel
  • Patent number: D514731
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: February 7, 2006
    Inventor: Hartmut S. Engel
  • Patent number: D520172
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: May 2, 2006
    Inventor: Hartmut S. Engel
  • Patent number: D481149
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: October 21, 2003
    Inventor: Hartmut S. Engel
  • Patent number: D568522
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: May 6, 2008
    Inventor: Hartmut S. Engel
  • Patent number: D573744
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: July 22, 2008
    Inventor: Hartmut S. Engel
  • Patent number: D573745
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: July 22, 2008
    Inventor: Hartmut S. Engel
  • Patent number: D573746
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: July 22, 2008
    Inventor: Hartmut S. Engel
  • Patent number: D574101
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: July 29, 2008
    Inventor: Hartmut S. Engel
  • Patent number: D574542
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: August 5, 2008
    Inventor: Hartmut S. Engel
  • Patent number: D578237
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: October 7, 2008
    Inventor: Hartmut S. Engel
  • Patent number: D578692
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: October 14, 2008
    Inventor: Hartmut S. Engel
  • Patent number: D493244
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: July 20, 2004
    Inventor: Hartmut S. Engel