Patents by Inventor Manfred Elzenbeck

Manfred Elzenbeck 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: 20090133195
    Abstract: A description is given of a mattress with at least one elastic basic body. The basic body has at least one channel in which at least one resilient rake can be arranged. The resilient rake includes an elongate, elastic crosspiece which is capable of torsion. A multiplicity of resilient arms are fastened on the crosspiece, each being arranged essentially transversely to the crosspiece.
    Type: Application
    Filed: December 2, 2006
    Publication date: May 28, 2009
    Inventor: Manfred Elzenbeck
  • Patent number: 7036882
    Abstract: A chair, in particular office chair, comprises a seat support with a front seat support part and a rear seat support part which is pivotable in relation thereto about a horizontal pivoting axis. An adjustable-length energy storing device, which is articulated to the seat support parts, serves for adjustment of the two seat support parts relative to each other. An interlocking mechanism is provided for locking the pivotability of the seat support parts relative to each other, the interlocking mechanism being designed for providing a plurality of positions of interlocking of the front seat support part relative to the rear seat support part. The seat support parts of the chair can therefore be interlocked in a selected position of interlocking, meeting a user's wishes. This helps put into practice a chair that offers improved ease and convenience of sitting.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: May 2, 2006
    Assignee: Dauphin Entwicklings-u. Beteiligungs GmbH
    Inventor: Manfred Elzenbeck
  • Patent number: 6988774
    Abstract: A lounge chair with a frame having longitudinal and transverse bars and with spring elements held by the frame. The spring elements being in the form of an elastic textile structure held under prestress between the longitudinal bars and forming a supporting surface covering the frame. The textile structure is made out of synthetic threads. A first prestress of the textile structure at a right angle to the longitudinal bars in a first section is different from a second prestress of the textile structure at a right angle to the longitudinal bars in a second section.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: January 24, 2006
    Assignee: Roessle & Wanner GmbH
    Inventor: Manfred Elzenbeck
  • Patent number: 6945603
    Abstract: A chair comprises a seat support with a front seat support part and a rear seat support part which is connected thereto via a pivoting axis. An adjustable length energy storing device serves for adjustment relative to each other of the seat support parts. The energy storing device is pivotably supported on the seat support parts at a distance from the pivoting axis. This distance can be modified by means of an adjusting element by operation of a turning handle. The turning handle is connected to the adjusting element via a coupling element, with the axes of rotation of the adjusting element and turning handle not being in alignment. This ensures conveniently accessible modification of the adjusting force of the energy storing device.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: September 20, 2005
    Assignee: Dauphin Entwicklungs-u. Beteiligungs GmbH
    Inventor: Manfred Elzenbeck
  • Publication number: 20040212235
    Abstract: A chair comprises a seat support with a front seat support part and a rear seat support part which is connected thereto via a pivoting axis. Seat inclination can be modified by means of an adjusting element by operation of a turning handle. The turning handle is connected to the adjusting element via a coupling element, with the axes of rotation of the adjusting element and turning handle not being in alignment. This ensures conveniently accessible modification of seat inclination.
    Type: Application
    Filed: March 5, 2004
    Publication date: October 28, 2004
    Applicant: DAUPHIN ENTWICKLUNGS-U. BETEILIGUNGS GMBH
    Inventor: Manfred Elzenbeck
  • Publication number: 20040174057
    Abstract: A chair comprises a seat support with a front seat support part and a rear seat support part which is connected thereto via a pivoting axis. An adjustable length energy storing device serves for adjustment relative to each other of the seat support parts. The energy storing device is pivotably supported on the seat support parts at a distance from the pivoting axis. This distance can be modified by means of an adjusting element by operation of a turning handle. The turning handle is connected to the adjusting element via a coupling element, with the axes of rotation of the adjusting element and turning handle not being in alignment. This ensures conveniently accessible modification of the adjusting force of the energy storing device.
    Type: Application
    Filed: March 5, 2004
    Publication date: September 9, 2004
    Applicant: DAUPHIN ENTWICKLUNGS-U. BETEILIGUNGS GMBH
    Inventor: Manfred Elzenbeck
  • Publication number: 20040174059
    Abstract: A chair, in particular office chair, comprises a seat support with a front seat support part and a rear seat support part which is pivotable in relation thereto about a horizontal pivoting axis. An adjustable-length energy storing device, which is articulated to the seat support parts, serves for adjustment of the two seat support parts relative to each other. An interlocking mechanism is provided for locking the pivotability of the seat support parts relative to each other, the interlocking mechanism being designed for providing a plurality of positions of interlocking of the front seat support part relative to the rear seat support part. The seat support parts of the chair can therefore be interlocked in a selected position of interlocking, meeting a user's wishes. This helps put into practice a chair that offers improved ease and convenience of sitting.
    Type: Application
    Filed: March 8, 2004
    Publication date: September 9, 2004
    Applicant: Dauphin Entwicklungs-u. Beteiligungs GmbH
    Inventor: Manfred Elzenbeck
  • Patent number: 6370714
    Abstract: Lounger beds have a lying surface made of a textile structure clamped into a frame to permit a division of the lying surface into areas with different tension. A textile structure with elastic threads is fastened to longitudinal spars of the frame. The top side, of the longitudinal space has a curved construction form supporting surfaces for the textile structure only in an exterior area. The longitudinal spars have receiving grooves only on the exterior side for the edge of the textile structure to be clamped in.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: April 16, 2002
    Assignee: Rössle & Wanner GmbH
    Inventor: Manfred Elzenbeck
  • Patent number: 5797653
    Abstract: A chair, in particular an office chair, has a so-called synchronous mechanism in the form of a front seat support member stationary in relation to a chair column and a rear seat support member pivotable about a pivot axle in relation to the front seat support member and bearing a back-rest. A seat supports itself on the two seat support members. A blocking lever of a blocking mechanism and having a stop face is articulated on the rear seat support member at a distance from the pivot axle. This stop face is moved by gravity into engagement with a blocking face stationary in relation to the front seat support member. For releasing this locking, the blocking lever is lifted by a blocking actuator arm.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: August 25, 1998
    Assignee: Dauphin Entwicklungs - u. Beteiligungs-GmbH
    Inventors: Manfred Elzenbeck, Klaus Haar, Harald Nathmann
  • Patent number: 5564783
    Abstract: A chair has a chair column on which a front seat support member is fixed. A rear seat support member provided with a back-rest support for a back-rest is joined to the front seat support member by a pivot axle. A seat is supported on the two seat support members. The seat is supported in relation to the rear seat support member by a supporting axle, which is adjustable in height relative to the rear seat support member by a seat pitch adjuster. The seat pitch adjuster can be a retrofit kit.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: October 15, 1996
    Assignee: Duphin Entwicklungs-u. Beteiligungs-GmbH
    Inventors: Manfred Elzenbeck, Klaus Haar, Harald Nathmann
  • Patent number: 5501355
    Abstract: A work box comprises a central box unit and two lateral box units. Each of the box units has a bottom wall, a front end wall, a rear end wall, two opposing lateral side walls, and adjacent surfaces of complementary shape so that when the work-box is closed it forms an essentially solid block. Guide means of the work-box is arranged between the central box unit and the lateral box units, respectively. The bottom wall of the central box unit comprises downwardly inclined slanted wall portions, with the contour of the central box unit essentially corresponding to a triangular prism. The central box unit opens in an upward direction and has a lower edge defined by the slanted wall portions of its bottom wall, which faces in a downward direction. The upper edges of the front end, rear end, and side walls of the lateral box units define a plane that is parallel to the slanted wall portions of the central box unit.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: March 26, 1996
    Inventors: Manfred Elzenbeck, Klaus Haar
  • Patent number: 5497597
    Abstract: A frame and an inserted board mounted on the frame is related. The frame includes a circumferential frame edge, a frame receiver corresponding to the shape of the board and a circumferential frame support edge supporting an edge of the board, the supporting edge extending in the direction toward the interior of the frame. The board includes a circumferential edge, a spring-elastically pivotable blocking member situated at at least two oppositely situated portions of the circumferential edge of the board, each blocking member projecting beneath a portion of the frame edge, and an adjustable operating element associated with each blocking member.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: March 12, 1996
    Assignee: Froscher Aspect GmbH & Co. KG
    Inventor: Manfred Elzenbeck
  • Patent number: 5483900
    Abstract: In order to be able to combine different types and sizes of tables with the help of as few as possible individual elements, it is proposed in connection with a table with a table top inserted into a frame that the frame consists of corner pieces each forming a corner frame, and of frame rails connecting two corner pieces each, where a removable table leg is associated with each corner piece, the table top is supported at least on one frame rail and the upper surface of the table top extends approximately flush with the top of the frame.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: January 16, 1996
    Assignee: Froscher Aspect GmbH & Co. KG
    Inventor: Manfred Elzenbeck
  • Patent number: 5356199
    Abstract: A mechanism for mounting the seat of a swivel chair to the chair frame, with a first mounting which can be connected to the frame, with a second mounting carried by the first mounting via a joint, which can be connected to the seat and with a spring arrangement for the initial tensioning of the second mounting in an upper position of rest, locking parts on said first and second mounting which are adapted to be engaged and disengaged by a locking slide.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: October 18, 1994
    Assignee: Fritz Hansen A/S
    Inventors: Manfred Elzenbeck, Burkhard Vogtherr
  • Patent number: 5165638
    Abstract: A furniture connector, which comprises a bundle of segments on which construction elements, such as table legs or connecting struts are secured, and which are clamped together via two joining rings and wherein the two connecting rings are clamped together via a tie rod and wherein the segments may have various segment angles in cross section, wherein the sum of the segment angles is 360.degree..
    Type: Grant
    Filed: June 3, 1991
    Date of Patent: November 24, 1992
    Assignee: Froscher Aspekt GmbH Co. KG
    Inventors: Vincent Fallon, Manfred Elzenbeck, Theodor Luptovits
  • Patent number: 5002337
    Abstract: A stackable chair has a leg frame on which a seat and back are mounted. The leg frame comprises two lengths of flat tubing of dumb-bell shaped cross section bent to provide contiguous parallel portions which extend centrally transversely of the seat, portions extending from the ends of the parallel portions toward corner regions of the seat and portions bent downwardly to form the legs which are substantially in a vertical fore-and-aft plane but incline forwardly and rearwardly. When the chairs are stacked the legs of dumb-bell cross section nest with one another. The seat has a width substantially equal to the overall width of the leg frame and has cut-out corner regions to accommodate legs of superposed chairs when stacked. Plastic gliders at the bottom of the legs have support portions extending up along the legs for supporting superposed stacked chairs.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: March 26, 1991
    Assignee: August Froscher GmbH & Co. K.G.
    Inventors: Harmut Engel, Manfred Elzenbeck
  • Patent number: 4840426
    Abstract: An office chair in which a backrest and seat are articulated together and the resulting assembly pivotally suspended from the rear end of the side arms which form a pivot point positioned at or near the center of gravity of the chair when occupied. The pivot point is fixed in space by an underlying support system. The lower end of the arm rest is affixed to the rear transverse support arm of a support frame which is, in turn, mounted on the upper end of a vertical support column. The front end of the set member is slidably mounted on a forward cross arm of the support frame through a hexagonally-shaped sliding/locking member in such manner that the back rest and seat may be selectively locked in position or released to adjustably recline (backrest) and slide (seat).
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: June 20, 1989
    Assignee: Davis Furniture Industries, Inc.
    Inventors: Burkhard Vogtherr, Manfred Elzenbeck
  • Patent number: D281292
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: November 12, 1985
    Assignee: August Froscher GmbH & Co., K.G.
    Inventors: Hartmut Engel, Manfred Elzenbeck
  • Patent number: D317097
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: May 28, 1991
    Assignee: Davis Furniture Industries, Inc.
    Inventors: Burkhard Vogtherr, Manfred Elzenbeck
  • Patent number: D317232
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: June 4, 1991
    Assignee: Davis Furniture Industries, Inc.
    Inventors: Burkhard Vogtherr, Manfred Elzenbeck