Patents by Inventor Alfred Grass

Alfred Grass 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: 5641216
    Abstract: A drawer slide, includes a cabinet body rail and a drawer rail with rollers and corresponding slide tracks and the cabinet body rail and the drawer rail are placed next to each other on the underside of the drawer bottom.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: June 24, 1997
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5604956
    Abstract: A hinge with self-closing mechanism includes a hinge arm fastened swivelable to a hinge cup and also includes an elastic element which lies with one end of the elastic element on the hinge arm and disposed outside the hinge cup under the bottom of the hinge cup.
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: February 25, 1997
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5577296
    Abstract: A single articulation door hinge includes a base plate and a one-piece hinge arm. The base plate and hinge arm are quickly disconnected by a snap-in locking device to allow easy removal of a door from a cabinet frame, for example. The catch spring includes two substantially parallel sides releasably engageable with the base plate with one side having a catch shank and the other second side having a nose disposed toward one another. The catch spring further includes a scroll spring disposed between the shank and nose, biased toward the nose to engage and secure the catch spring against the hinge arm.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: November 26, 1996
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5548870
    Abstract: A hinge cup with releasable fastener for use with a cabinet component having a bore hole includes an assembly component anchorable in the cabinet component bore hole. The assembly component is provided with a receptacle, and a cup casing is receivable in the assembly component receptacle in a press fit relationship and is fastenable to the assembly component.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: August 27, 1996
    Assignee: Grass AG
    Inventor: Alfred Grass, sen.
  • Patent number: 5489148
    Abstract: A partition wall component for connecting a drawer partition wall to a drawer side wall is fastened to the hollow front face of the partition wall and is detachable from the partition wall. The partition wall component is resiliently fastened to the side wall at a depression formed in the side wall and is fastened to the partition wall by one or more springs firmly engaged against the inner profile of the partition wall.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: February 6, 1996
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5421063
    Abstract: A single-articulation door hinge with a pressure closing device is associated with a hinge arm mounted in a hinge barrel on a hinge pin. Leg springs engage the hinge pin and, in conjunction with the pressure roller, provide spring mounting for the hinge arm. The leg springs are fixed in place by being clipped on to the hinge pin and function with the hinge arm as a spring clip.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: June 6, 1995
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5406677
    Abstract: A press-fit hinge cup for a hinge is anchored in a recess in a furniture portion, preferably in a door portion, and the anchoring means consists of tabs which project radially outwardly from the side wall of the hinge cup into the material of the peripheral wall of the recess of the furniture portion. In order to avoid excessive weakening of the material of the peripheral wall of the furniture portion and to ensure secure fitting of the hinge cup in the furniture portion respective upper or distal edges of the tabs are located at different distances from the base of the hinge cup relative to each other. As a result these tabs engage in the peripheral wall of the furniture portion along different contour lines in the recess. Additional splay tabs defined by slits positioned substantially perpendicularly to the hinge cup's base and pressed outwardly into the peripheral wall of the recess may be provided. The splay tabs provide additional resistance to twisting of the hinge cup in the recess.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: April 18, 1995
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5388309
    Abstract: A hinge for insertion in a recess in a furniture portion (e.g. a door) including a press-in cup for engagement with the recess and rotary cup which is engageable with the press-in cup by a rotary action. Pairs of complementarily engageable tabs are provided on the bases of the cups. Further pairs of complementarily engageable engagement tabs are provided on side walls of the cups which provide a camming action tending to urge the cups together as they are engaged. The base of the press-in cup is provided with a resilient detent tongue which springs into place when the cups are connected and resists inadvertent disconnection. Manual depression of the detent permits the cups to be separated.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: February 14, 1995
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5348386
    Abstract: A drawer is described which comprises side walls, a back wall, a front panel and a drawer bottom. In order, for transport purposes, to reduce the amount of room which the drawer takes up, it is provided that the drawer side walls and the back wall are coupled in a hinge-like manner to the drawer bottom and that the front panel is detachably connected to said parts. There is provided on the drawer bottom a downward-directed projection which engages in an open groove of a side wall or of the back wall and fills the groove force-lockingly in the manner of an initial tension, the groove having an inward-directed hook-like projection and an opening through which the projection of the drawer bottom engages. Front panel connectors are additionally provided on the side walls for connection to the front panel.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: September 20, 1994
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5314253
    Abstract: A rolling element guide for drawer guides consists of a furniture unit body rail mounted on the furniture unit body side wall and a drawer rail mounted on the drawer, rolling surfaces for the rolling elements transmitting the drawer load being arranged on both rails, the rolling elements being held in a roller cage arranged between the rails. For minimizing the rolling noise and for reducing the manufacturing costs, the rolling elements have pins on opposing end faces, these pins pivoting in the roller cage, the pins of rolling elements arranged in the same plane being staggered 90 degrees with respect to each other, which forms rolling surfaces on the rolling elements that are staggered 90 degrees with respect to each other, and high drawer loads can be transmitted.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: May 24, 1994
    Assignee: Grass AG
    Inventor: Alfred Grass, Jr.
  • Patent number: 5239730
    Abstract: Described is a hinge with a rotary cup and a press-fit cup at the end of the hinge-joint, in which for assembly the rotary cup is inserted into the press-fit cup on the door side and for fastening is twisted in a bayonet-like manner. In order to prevent damage by parts projecting at the top, the press-fit cup is provided with lateral walls of reduced height in such a way that the press-fit cup is completely countersunk in the cup drilling on the door side and that from the bottom of the press-fit cup rise up bent portions which, through turning, are engaged by lugs of the rotary cup.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: August 31, 1993
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5221134
    Abstract: A drawer is described which comprises side walls, a back wall, a front panel and a drawer bottom. In order, for transport purposes, to reduce the amount of room which the drawer takes up, it is provided that the drawer side walls and the back wall are coupled in a hinge-like manner to the drawer bottom and that the front panel is detachably connected to said parts. There is provided on the drawer bottom a downward-directed projection which engages in an open groove of a side wall or of the back wall and fills the groove force-lockingly in the manner of an initial tension, the groove having an inward-directed hook-like projection and an opening through which the projection of the drawer bottom engages. Front panel connectors are additionally provided on the side walls for connection to the front panel.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: June 22, 1993
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5147124
    Abstract: A front panel with adjustment device, particularly for drawers of kitchen furniture with a frame with side frame rails with rollers and further with a rail arranged on the side of the frame and connected with the back side and front panel provides for adjustment of the incline of the front panel with an adjustment device arranged between the rail and the front panel. Provided for this purpose is a gear housing attached to the forward end of the rail, an eccentric bolt of a pinion engaging a receiving slot of the rail, and a worm with slots meshing with the pinion through a tooth system.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: September 15, 1992
    Assignee: Grass AG
    Inventors: Alfred Grass, Ingo Gasser
  • Patent number: 5088155
    Abstract: Described is a single-articulation hinge with an adjusting arrangement for lateral adjustment and for vertical adjustment, the invention providing a snap-in connection between the door-side section and the frame-side section of the door hinge. Rapid assembly is achieved thereby, because the two-part door hinge is completed through simple sliding together of an intermediate plate mounted on the door side and of a frame-side base plate screwed onto the body of the furniture unit. A snap-in connection is carried out preferably with the help of a spring, which separably connects the two parts.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: February 18, 1992
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 5056192
    Abstract: A protective cover for a hinge has a band-like cover strip which extends longitudinally relative to the hinge and has one end connected with the hinge barrel and the other end of the cover strip connected with the hinge arm. The cover strip is longitudinally elastic and flexible and covers at least the respective top sides of the hinge barrel and the hinge arm. The cover strip can have a U-shaped cross section.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: October 15, 1991
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 4979265
    Abstract: A wide angle hinge is used for articulation of a furniture door on a furniture unit with a base plate mounted on the furniture unit and a housing mounted on the furniture door; mounted on the base plate is a first gear rack on which a gear is rolled in the longitudinal direction of the hinge and meshes with a second gear rack connected with the housing. The second gear rack is mounted directly on the housing and has a circular arc shape that is concentric with the swivel axis of the door.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: December 25, 1990
    Assignee: Grass AG
    Inventor: Alfred Grass
  • Patent number: 4881826
    Abstract: An under-base guiding system for a drawer of a piece of furniture is described, wherein the body of the piece of furniture is provided with sidewalls, a front batten, and rails having guide rollers, and wherein the drawer is provided with rails having guide rollers.The body rails are situated below the base of the drawer, and are secured to the front batten of the body by a front connector and to the rear wall of the body by a rear connector. The drawer rails and body rails interengage beneath the drawer base via the guide rollers.Since the guiding system is located under the base of the draw, it possesses the advantage that it can be concealed, and can provide maximum space utilization of the drawer, relatively great strength, and ease of adjustment.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: November 21, 1989
    Assignee: Alfred Grass Ges.m.b.H. Metallwarenfabrik
    Inventor: Alfred Grass
  • Patent number: D309247
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: July 17, 1990
    Assignee: Alfred Grass GES.m.b.H. Metallwarenfabrik
    Inventor: Alfred Grass
  • Patent number: D309704
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: August 7, 1990
    Assignee: Alfred Grass G.m.b.H.
    Inventor: Alfred Grass
  • Patent number: RE34108
    Abstract: A pull-out guide for drawers consists of two 2 frame sides, U-shaped guide rails and Z-shaped pull-out rails movable therein, both the guide and pull-out rails being provided with a roller each, and the lower guide legs of the U-shaped guide rails having in their end areas run-in slopes adjoined by run-in stops each, and the front end areas of the upper pull-out rail legs, serving as rolling surfaces for the rollers, having a run-in slope each oriented in the same direction and preferably parallel to the run-in slope in the end area of the guide rail on the frame side. This improves the pull-in and staying closed behavior when drawers of little net weight and small load capacity are involved. Because the legs of both rail pairs of the pull-out guide run parallel, the front blind is approximately jointlessly flush with the frame.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: October 20, 1992
    Assignee: Grass America, Inc.
    Inventor: Alfred Grass