Patents Examined by Fred Andrew Silverberg
  • Patent number: 4532674
    Abstract: A hinge assembly which includes two sleeves, two U-channels, a spring to effect pivotal movement between the sleeves and several links which both transmit drive force from the spring and act as an overcenter latch to lock the hinge assembly in an unfolded configuration. Each U-channel is disposed within one of the sleeves and is pivotally connected to the other U-channel to provide the pivotal connection between the sleeves. The spring and links are contained within the interior of the hinge assembly to provide a smooth, snag resistant exterior.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: August 6, 1985
    Assignee: Martin Marietta Corporation
    Inventors: William H. Tobey, Donald A. Thomas, William J. Gardner
  • Patent number: 4506408
    Abstract: The present invention relates to a structurally uncomplicated, lightweight and inexpensive variable position hinge structure. The hinge structure comprises a male component, a portion of which comprises a relatively raised and non-raised portion, and a female component, a portion of which comprises a relatively raised and non-raised portion. The raised and non-raised portions of the male and female components mesh to lock the male and female components relative to each other at various positions of rotation therebetween.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: March 26, 1985
    Inventor: Dwight C. Brown
  • Patent number: 4502181
    Abstract: A mount 10 that allows a loop strap 11 to pivot on a horizontal axis between vertical and horizontal positions uses a fixed pivot pin 15 arranged on the horizontal axis for supporting loop strap 11. A sheet metal sleeve 16 wraps loosely around pivot pin 15 and is secured to the ends 17 and 18 of strap 11 so that strap 11 can pivot on pin 15. A cover 20 is arranged over sleeve 16 and strap ends 17 and 18 and has end openings 21 through which pin 15 can pass. A pair of supports 25 and 26 with blind sockets 30 are pressed onto opposite ends 14 of pivot pin 15 and are made to overlap in a central region behind loop strap 11. Overlapping regions 31 and 32 of end supports 25 and 26 are secured to the vehicle so that strap 11 and cover 20 hang downward to conceal the securing mechanism.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: March 5, 1985
    Assignee: Voplex Corporation
    Inventor: Albert J. Gonas
  • Patent number: 4495674
    Abstract: A hinge mechanism for a door which includes a support within the door opening and away from the door jamb. In the closed position of the door, parts of the mechanism including a hinge member are located between the support and the jamb. A door is pivotally mounted on the hinge member at its distal end. As the door moves from the closed to an intermediate position the pivotal mounting of the door on the hinge member follows an arcuate path outwardly and away from the door jamb. When the mechanism reaches the intermediate position the door can be swung on its pivotal connection with the hinge member to a fully open position.
    Type: Grant
    Filed: March 5, 1982
    Date of Patent: January 29, 1985
    Assignee: Clark Equipment Company
    Inventor: Louis A. Haddock, Jr.
  • Patent number: 4495671
    Abstract: Adjustable telescoping drapery traverse rods are provided with positive drive means for master carriers comprising an essentially non-stretchable perforated drive tape and toothed drive-sprocket. Apparatus is also provided for adjusting the points of connection between the master carriers and the tape from the outside of the rod after the length of the rod has been adjusted to fit a given window (or the like) opening.
    Type: Grant
    Filed: December 6, 1982
    Date of Patent: January 29, 1985
    Assignee: Kenney Manufacturing Company
    Inventors: Paul E. Comeau, Anthony Torti
  • Patent number: 4493128
    Abstract: A positioner for a movable window sash embodies a guide bracket carried by the sash with one side of the guide bracket spaced from and facing an adjacent side of a window frame and extending in a plane which is inclined relative to a plane extending in the direction of movement of the sash with the opposite side of the guide bracket being parallel to said one side thereof. A wedge-like member has a first surface in sliding engagement with said one side of the guide bracket. A second surface of the wedge-like member extends parallel to and faces the adjacent side of a window frame and is movable into and out of engagement with the window frame in response to sliding movement of the wedge-like member in opposite directions. An actuator mounted for sliding movement along said opposite side of the guide bracket is operatively connected to the wedge-like member to move it in opposite directions. A resilient member urges the wedge-like member into engagement with the adjacent side of the window frame.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: January 15, 1985
    Assignee: Mason Corporation
    Inventor: Jon C. Corry
  • Patent number: 4486917
    Abstract: A door closer includes a spring-loaded piston forming part of a conventional pneumatic dashpot, which retards the speed of a door during closing, and an elastomeric sleeve which is longitudinally compressed during opening of the door to retard the speed of the door during opening and to apply substantial resistance to further opening movement as the door approaches its fully open position. Closing speed of the door is also initially retarded by the compressed sleeve.
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: December 11, 1984
    Assignee: National Manufacturing Co.
    Inventors: James R. Johnston, Cordell E. Meiste
  • Patent number: 4485524
    Abstract: A glass cover for an enclosure is mounted over an opening in the enclosure by a pair of recessed hinges, each of which includes a hinged body. There are two slots in each hinged body. Each hinged body is positioned within a recess in the enclosure wall. The hinge also includes a frictional member positioned in one of the slots in the hinged body, and a cover holder. Two pins couple the cover holder to the hinge body. One of the pins is coupled to the friction member; this pin passes through one of the slots into a socket in the friction member. The other pin is positioned within the other slot. The frictional member engages a portion of the hinged body defining the perimeter of the slot in which it is disposed. As the cover is raised and lowered, the frictional member rides along this slot. The frictional forces between the side walls of the slot and the friction member are such that the cover remains stationary when the person lifting the cover releases his or her grip.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: December 4, 1984
    Inventor: Donald G. Neville
  • Patent number: 4483042
    Abstract: A locking device for locking the trailing wheels of a wheeled carriage, particularly of a perambulator, in the straight running position, the trailing wheels being mounted for pivotal movement about an upright axis extending perpendicular to their axis of rotation without intersecting it, wherein a support member carrying the axis of rotation of the trailing wheel is connected to a vertically extending sleeve mounted for rotation about its vertical axis in a concentrically surrounding cylindrical recess in the wheeled carriage, and wherein a resiliently deformable plug extends through the sleeve from above, the plug having a disk-shaped enlarged head portion engaging the rim of the upper end face of the recess and being in positive locking engagement with the sleeve so that the plug is non-rotatably connected therewith, the locking device including a substantially vertically extending engagement surface formed on the disk-shaped head portion for positive locking engagement with a locking member pivotally moun
    Type: Grant
    Filed: September 21, 1982
    Date of Patent: November 20, 1984
    Assignee: Peg Perego-Pines Deutschland GmbH
    Inventor: Glaser Dieter
  • Patent number: 4483045
    Abstract: A door track adapted for carrying a trolley supporting a door for rolling movement. The door track includes one or more single-piece track members having a first substantially planar surface and a pair of substantially identical spaced apart portions extending from the first substantially planar surface and forming a channel with the first planar surface. The spaced apart portions each have a substantially planar portion adjacent the first substantially planar surface to provide a plurality of flat mounting surfaces. The spaced apart portions further include inwardly curved portions extending from the substantially planar portions which are adapted to support a trolley for rolling movement therealong. The inwardly curved portions are spaced apart to freely receive a door supporting member which is secured to the trolley.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: November 20, 1984
    Assignee: Erect-A-Tube, Inc.
    Inventors: Kenneth B. Shelton, Klaus H. Herkert, Lynn O. Twedt
  • Patent number: 4475267
    Abstract: A shock absorbing fallfront bracket of the type having rigid hinged-together links diagonally supporting the fallfront panel in its open position and folding into the cabinet in closed position, and also including a third spring loaded link extending from the mutual hinge of the linked pair and to the cabinet to resiliently resist the full opening of the panel, and to fold, when closed, fully into the cabinet along with the supporting linked pair.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: October 9, 1984
    Assignee: Ampex Corporation
    Inventor: Richard A. Hathaway
  • Patent number: 4475268
    Abstract: This invention is directed toward improvements in closure hinges of the type employing curved hinge sections which rotatably interconnect. A rigid link is employed at the ends of the hinge to help retain the hinge sections interconnected. Existing hinge elements are used to connect the links to the hinge. Fasteners are employed to prevent the hinge sections from moving longitudinally with respect to each other. Spacer elements are provided to prevent the fasteners from binding on the hinge sections.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: October 9, 1984
    Assignee: Martinray Industries Ltd.
    Inventor: Henri M. R. Labelle
  • Patent number: 4470169
    Abstract: An articulated hinge for pivotally connecting a door flap to the carcass of a piece of furniture which has spaced carcass walls and a frame facing the door and extending essentially at right angles to the carcass walls and confining a free door opening, while the door flap in closed position partially overlaps the frame. The hinge has a carcass-related part connected to the edge surface of the frame offset inwardly relative to the adjacent carcass wall, and a door-related part connected to the door flap and pivotally connected to the carcass-related part via a link mechanism. The door-related part is in the form of an insert cup with a connecting part fittingly inserted into a recess in the backside of the door flap, and a link carrier part which has a portion interlocking with the connecting part.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: September 11, 1984
    Assignee: Mepla, Inc.
    Inventors: Horst Lautenschlager, Gerhard Lautenschlager, Karl Lautenschlager, Jr.
  • Patent number: 4468836
    Abstract: A damper for the door of a cassette housing in a cassette tape recorder is formed by unrotatably inserting a resisting member provided with radially extended vanes around a support shaft protuberating from a base plate and setting the resisting member within a cup-shaped rotary member thereby allowing the vanes to slide frictionally on the inner wall surface of the rotary member. This damper is mounted in the machine proper of the recorder by fastening the resisting member to the machine proper through the medium of the fitting member and pivotally attaching the door to the rotary member by utilization of a rack and pinion. The opening and closing motion of the door is braked by the frictional slide of the resisting member on the inner wall surface of the rotary member. Thus, the shocks and vibration produced by the opening and closing motion of the door are abated.
    Type: Grant
    Filed: November 27, 1981
    Date of Patent: September 4, 1984
    Assignee: Nifco Inc.
    Inventor: Nobuaki Omata
  • Patent number: 4467496
    Abstract: A spring member comprises an annular polymeric structure 1 interrupted by gap 3 to define annular structure ends 4 provided with attachment adaptions, external at 8 and internal at 6. Thus wheel 12 journalled at 7 in extension 6 is resiliently mounted by virtue of the elasticity of the annular structure material. Proportions, dimensions and materials can be varied over a wide range of applications. A particularly valuable application of such a C-shape spring is in the provision of a resiliently mounted castor wheel with a resiliently mounted pilot wheel giving easy passage up over a door sill or the like.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: August 28, 1984
    Assignee: Wheel Developments Limited
    Inventor: John D. W. Gregg
  • Patent number: 4465211
    Abstract: A container for material such as fertilizer or seeds which delivers same to an underlying distributing device is mounted on a tractor so that the weight of the container and associated equipment is indicated to the operator of the tractor whereby the amount of material remaining in the container is specifically indicated. The weighing apparatus includes a spring, pointer and scale incorporated in the supporting structure extending from the tractor for the container and associated equipment and the pointer and scale may be interconnected to the spring and mounted on the tractor for the convenience of the operator. In one embodiment the spring is a tension spring at the top of the supporting structure and in another embodiment it is a compression spring near the bottom of the supporting structure. Instead of a spring, the weight may be indicated by hydraulic pressure in a hydraulic system for the supporting structure.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: August 14, 1984
    Assignee: C. van der Lely N.V.
    Inventors: Ary van der Lely, Cornelis J. G. Rom
  • Patent number: 4463475
    Abstract: A hinge lock mechanism (a joint fastener) for lockingly joining at least two panels together at any angle comprising two arms. One of the arms has threads thereon and screws into a floating nut that is located in one of the panels and the other arm has a conical V shaped depression thereon that communicates with a clamping device that has a set screw thereon that is urged against the conical V shaped surface of the arm for tightening the panels together. This hinge lock mechanism forms a continuous edge at the junction of the two panels and cannot be seen from the desired side of the panels.
    Type: Grant
    Filed: May 11, 1982
    Date of Patent: August 7, 1984
    Inventor: Robert Rivers
  • Patent number: 4462138
    Abstract: A wheel bracket assembly includes an upper bracket having two spaced downwardly extending side flanges and a wheel carrying bracket pivotally supported between the upper bracket side flanges for pivotal movement about an axis. The second bracket has a generally horizontal top plate with a transverse, upwardly facing, concave groove and has side flanges which extend downwardly from opposite sides of the top plate and are adapted to pivotally support a wheel therebetween. Pivotal movement of the wheel carrying bracket in one direction is resisted by a resilient element which has one end engaging the top plate at a location within the groove, which extends away from such location approximately along the path of movement of the location about the pivot axis, which tapers in thickness toward such end, which has a semicylindrical head at the opposite end, and which has a transverse groove on each side thereof adjacent the head.
    Type: Grant
    Filed: September 12, 1983
    Date of Patent: July 31, 1984
    Assignee: Pemco-Kalamazoo, Inc.
    Inventor: John W. Black
  • Patent number: 4461057
    Abstract: An extensible handle bar for cleaning and painting tools and the like comprises inner and outer tubes in slidable telescoping relationship, the outer tube having a pair of apertures therein containing inserts. A helically threaded nut extends over the exterior surface of the outer tube and the inserts. The outer surface of each of the inserts includes projecting thread segments which mate with the internal threads of the nut. The internal threads of the nut and the thread segments of the insert each have a conical configuration. Upon rotation of the nut in one direction on the outer tube, the inserts are depressed radially such that the inner surfaces of the inserts press against the outer surface of the inner tube to axially lock the inner and outer tubes together.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: July 24, 1984
    Inventor: Henry M. Unger
  • Patent number: 4458379
    Abstract: A closure panel hinge and hold open mechanism includes a hinge bracket adapted for mounting on a vehicle body and a closure panel bracket. A pivot shaft pivotally mounts the closure panel bracket on the hinge bracket. A coil spring surrounds the pivot shaft and has integral first and second spring legs extending outwardly from the endmost spring coils thereof and respectively anchored on the hinge bracket and the closure panel bracket to urge the closure panel to a normal closed position relative the hinge bracket. A detent shoulder is provided on the hinge bracket and is automatically engaged by the second spring leg anchored on the closure panel when the closure panel bracket is moved from the closed position to the open position to hold the second spring leg against return movement and thereby hold the closure panel in the open position.
    Type: Grant
    Filed: March 10, 1982
    Date of Patent: July 10, 1984
    Assignee: General Motors Corporation
    Inventor: Alan J. Shelton