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).

  • Publication number: 20220282507
    Abstract: A sanitary installation is described that comprises at least one sanitary space, which can be closed, and whose pivot door is configured as a double-leaf angled door having a leaf composed of a material that is preferably transparent over its full area and having a leaf composed of an opaque material.
    Type: Application
    Filed: May 27, 2020
    Publication date: September 8, 2022
    Inventor: Hartmut S. Engel
  • Publication number: 20130294074
    Abstract: A lamp having a housing for the reception of a plurality of illuminants, as well as a scattered light disc held in a frame are described, which is characterized in that the frame, designed in a closed manner, comprises a surrounding guide limb part, which can be received substantially in a form fitting manner in the housing, and an inwardly directed support limb part extending perpendicular to the guide limb part; and in that a light permeable, surrounding strip of predefinable color differing from the color of the scattered light disc, is arranged in an edge holding fixture formed by the guide limb part and the support limb part; and the scattered light disc, on whose full area lights is incident, being supported on this strip.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 7, 2013
    Inventor: Hartmut S. ENGEL
  • Patent number: 8317354
    Abstract: The invention relates to a lamp (1), especially a suspended lamp, comprising a housing (2) that is provided with a first light emitting area (4) with a first light influencing element (9) on one side thereof while being fitted with a second light emitting area (21) with a second light influencing element (22) on another side for direct illumination. In order to improve indirect illumination of the lamp, the second light influencing element (22) can be moved into at least two different positions (S1, S2, S3).
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: November 27, 2012
    Assignee: Zumtobel Lighting GmbH
    Inventors: Patrick Gassner, Manfred Petschulat, Hartmut S. Engel
  • Patent number: 7914170
    Abstract: Disclosed is a flatly designed interior light which is essentially characterized by a centrally arranged hollow profiled support (1) that is disposed between two final parts (15) and is provided with an interior receiving space (17) and exterior reflective surfaces (18,19,20,21) for two fluorescent lamps (2, 3) which adjoin the profiled support (1) and run parallel thereto, and light guiding chambers (6, 7) that are placed on both sides of the profiled support (1), extend to the lateral border of the light, and are closed by the light emission surface (13) facing the room. Preferably, the height of the light, which reaches a maximum in the region of the central profiled support (1), decreases continuously in the direction of the edges (11) of the light until reaching approximately the thickness of the components (8, 9, 10) that form the light emission surface (13) facing the room.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: March 29, 2011
    Inventor: Hartmut S. Engel
  • Patent number: 7874696
    Abstract: A wall luminaire is described having a housing intended for the reception of the electrical components and having at least one light permeable element mounted to the housing whose special feature consists of the fact that light generated by a plurality of LEDs with an associated optical system or by a fluorescent lamp arrangement is guided in bundled form between two surfaces which are disposed in the sidelight region of the light beam.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: January 25, 2011
    Inventor: Hartmut S. Engel
  • Patent number: 7857493
    Abstract: A standing lamp, wall lamp or pole-mounted lamp having a base member unit and a column unit which carries illuminants at least in the region of its free end and whose special feature consists of the fact that the column unit has an at least substantially planar functional surface in which at least one cut-out is provided for the reception of a lighting system, in particular of an LED lighting system, with a presettable light radiation direction; and in that the functional surface extends at a presettable angle with respect to the mounting unit which forms a part of the adjustable angle of the light radiation direction presettable together with the lighting system. The invention is furthermore directed to a floor lamp.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: December 28, 2010
    Inventor: Hartmut S. Engel
  • Patent number: 7841738
    Abstract: A luminaire is described having a pot-shaped housing for the reception of electrical components and for the releasable mounting of a functional unit having at least one main lighting surface and whose special features consist of the facts that the preferably planar main lighting surface of the functional unit extends parallel to the base wall of the housing or its mounting surface and is bounded at the marginal side by a peripheral flat frame made of heat conducting material; and that the flat frame is connected in a heat conducting manner to at least one LED carrier which is located in the functional unit in the region of the rear side of the flat frame and its surface carrying the LEDs is directed to a reflector arranged between the base wall of the housing and the main lighting surface such that the main lighting surface is illuminated substantially uniformly by diffuse light.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: November 30, 2010
    Inventor: Hartmut S. Engel
  • Patent number: 7780316
    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: Grant
    Filed: November 26, 2004
    Date of Patent: August 24, 2010
    Inventor: Hartmut S. Engel
  • Patent number: 7780308
    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. The head reflector is separate from the direct light reflector and is shaped such that it directs at least a large portion of the light emitted from the light source region and incident on to it into the inner space of the direct light reflector.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: August 24, 2010
    Inventor: Hartmut S. Engel
  • Patent number: 7753550
    Abstract: The invention relates to a recessed lighting fixture comprising a holder for fixing a mounting surface, in particular in a room ceiling consisting of an illuminant holder and a reflector. The holder and the reflector are disposed with respect to each other in such a way that the reflector extends in the direction of a main lighting beyond the mounting surface when the recessed lighting is fixed thereto. In said area extending beyond the mounting surface, the reflector is connected to a reflective element which is vertically or angularly oriented with respect to the direction of the main lighting and is disposed outside of the reflector for receiving the light in the area between the mounting surface and the reflective element.
    Type: Grant
    Filed: November 26, 2004
    Date of Patent: July 13, 2010
    Inventor: Hartmut S. Engel
  • Patent number: 7744253
    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 and a reflector, with a reflector opening disposed in the direction of illumination defining a direct light discharge region and with the direct light discharge region being surrounded by a diffuse light discharge region.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: June 29, 2010
    Inventor: Hartmut S. Engel
  • Publication number: 20100067236
    Abstract: The invention relates to a lamp (1), especially a suspended lamp, comprising a housing (2) that is provided with a first light emitting area (4) with a first light influencing element (9) on one side thereof while being fitted with a second light emitting area (21) with a second light influencing element (22) on another side for direct illumination. In order to improve indirect illumination of the lamp, the second light influencing element (22) can be moved into at least two different positions (S1, S2, S3).
    Type: Application
    Filed: April 18, 2007
    Publication date: March 18, 2010
    Applicant: ZUMTOBEL LIGHTING GMBH
    Inventors: Patrick Gassner, Manfred Petschulat, Hartmut S. Engel
  • Patent number: 7635207
    Abstract: The invention relates to a recessed light provided with a light bulb socket and a reflector, which has an opening which is located in the main illumination direction and is covered by a transparent plate. An edge area of the reflector is arranged between the transparent plate and a fixing plate extending parallel thereto and comprising an opening for the reflector, wherein the relative position between the fixing plate and the transparent plate is fixed by a frame. The frame is flexible such that the fixing plate and/or transparent plate are exclusively detachable by deformation of the frame.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: December 22, 2009
    Inventor: Hartmut S. Engel
  • Patent number: 7611257
    Abstract: The invention relates to a lighting unit, in particular a lighting fixture for ceilings and/or walls comprising a coupled housing frame (2) and a functional frame (3) which is pivotally mounted with respect to the housing frame. A closing device is provided between the housing and functional frames and consists of a specially shaped wire spring (4) which interacts with the rest reception area (10) of the functional frame (3) and comprises a spring leg (8) interacting with the functional frame (3) in a predefined pivoting area under a preload effect.
    Type: Grant
    Filed: November 26, 2004
    Date of Patent: November 3, 2009
    Inventor: Hartmut S. Engel
  • Patent number: 7607795
    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: Grant
    Filed: September 30, 2005
    Date of Patent: October 27, 2009
    Inventor: Hartmut S. Engel
  • Publication number: 20090225537
    Abstract: Disclosed is a flatly designed interior light which is essentially characterized by a centrally arranged hollow profiled support (1) that is disposed between two final parts (15) and is provided with an interior receiving space (17) and exterior reflective surfaces (18,19,20,21) for two fluorescent lamps (2, 3) which adjoin the profiled support (1) and run parallel thereto, and light guiding chambers (6, 7) that are placed on both sides of the profiled support (1), extend to the lateral border of the light, and are closed by the light emission surface (13) facing the room. Preferably, the height of the light, which reaches a maximum in the region of the central profiled support (1), decreases continuously in the direction of the edges (11) of the light until reaching approximately the thickness of the components (8, 9, 10) that form the light emission surface (13) facing the room.
    Type: Application
    Filed: June 9, 2006
    Publication date: September 10, 2009
    Inventor: Hartmut S. Engel
  • Publication number: 20090034253
    Abstract: A luminaire is described having a pot-shaped housing for the mounting of illuminants and associated electrical components as well as for the shape matched reception and releasable fastening of a luminaire member, wherein the luminaire is characterized in that the luminaire member includes a first base region corresponding at least substantially to an axial extension of the housing and an external region adjoining it which expands continuously, starting from the base region, in the form of a slanted surface and merges into a central axis of the luminaire body approximately perpendicular to the luminaire member; and in that the illuminant or illuminants is or are positioned and/or designed such that both the base region and the front surface are illuminated with direct light of the illuminants substantially over their full area and the slanted surface is substantially only disposed in the sidelight region.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 5, 2009
    Inventor: Hartmut S. Engel
  • Publication number: 20090034242
    Abstract: A wall luminaire is described having a housing intended for the reception of the electrical components and having at least one light permeable element mounted to the housing whose special feature consists of the fact that light generated by a plurality of LEDs with an associated optical system or by a fluorescent lamp arrangement is guided in bundled form between two surfaces which are disposed in the sidelight region of the light beam.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 5, 2009
    Inventor: Hartmut S. Engel
  • Publication number: 20090034256
    Abstract: A standing lamp, wall lamp or pole-mounted lamp having a base member unit and a column unit which carries illuminants at least in the region of its free end and whose special feature consists of the fact that the column unit has an at least substantially planar functional surface in which at least one cut-out is provided for the reception of a lighting system, in particular of an LED lighting system, with a presettable light radiation direction; and in that the functional surface extends at a presettable angle with respect to the mounting unit which forms a part of the adjustable angle of the light radiation direction presettable together with the lighting system. The invention is furthermore directed to a floor lamp.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 5, 2009
    Inventor: Hartmut S. Engel
  • Publication number: 20090034252
    Abstract: A luminaire is described having a pot-shaped housing for the reception of electrical components and for the releasable mounting of a functional unit having at least one main lighting surface and whose special features consist of the fact that the preferably planar main lighting surface of the functional unit extends parallel to the base wall of the housing or its mounting surface and is bounded at the marginal side by a peripheral flat frame made of heat conducting material; that the flat frame is connected in a heat conducting manner to at least one LED carrier which is located in the functional unit in the region of the rear side of the flat frame and its surface carrying the LEDs is directed to a reflector arranged between the base wall of the housing and the main lighting surface such that the main lighting surface is illuminated substantially uniformly by diffuse light.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 5, 2009
    Inventor: Hartmut S. Engel