Rubber Patents (Class 16/86R)
  • Patent number: 6161252
    Abstract: A door holder assembly used to maintain a door in an opened position. The assembly is made up of a door stop, a locking plate mounted on the door and a floor mounted door holder. The door stop and the door holder are fixed to the floor while the locking plate is fixed to the lower portion of the door and is positioned to engage the door holder when the door is opened. The locking plate has two joined segments one of which is planar and flat while the other of which has a right angled groove. Depending on the vertical elevation of the door's bottom above the floor, the same locking plate can be mounted to the door in one of two different positions. If the elevation is slight then the right angled groove portion is mounted on the vertical front door surface. If the elevation is larger and sufficient space exists, the locking plate may have the right angled groove portion mounted to the lower edge of the door between the door and the floor.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: December 19, 2000
    Inventor: Miguel Angel Loera Rodriguez
  • Patent number: 6081965
    Abstract: A braking mechanism is disclosed for installment between the frame and the casement of a door or window including those that are movable about two axes (combined tilting-rotation action) includes a tube that has at the face a guide opening for passage of a piston rod which slideably extends in the tube, with the guide opening being formed by a formed body secured in the tube. The formed body has a conical shape and has braking surface tapering in direction of the guide opening and in engaging contact with a conical braking body which completely surrounds the piston rod and through which the piston rod moves. The braking body is tapered complementary to the braking surfaces of the formed body and is spring-loaded against a stationary abutment. At least one damper element made from elastic material is lodged between the piston and the stationary abutment within the tube.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: July 4, 2000
    Assignee: SCHUCO International KG
    Inventor: Matthias Kupfer
  • Patent number: 6073306
    Abstract: The invention relates to a safety device, and in particular to a safety device for a sliding panel, such as a patio door.The safety device includes an abutment, a carrier member for the abutment, a mounting arm for the carrier member, a pivot for the mounting arm, the pivot axis being substantially parallel to the carrier member, a support for the pivot, a resilient bias spring urging the mounting arm towards an abutment condition, the resilient bias spring being connected between the mounting arm and the support, and a manually operable member for moving the abutment against said resilient bias spring, the manually operable member comprising finger grip elements carried by the mounting arm, the finger grip elements being spaced from the pivot.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: June 13, 2000
    Inventors: Andrew Warren, Desmond Corbett
  • Patent number: 6065186
    Abstract: A tapered shear stop has rigid tapered shear stud and tapered polyurethane overing that both have rounded outer surfaces. The tapered shear stop is mounted in a bracket to withstand steady state and impacting loads from a boom and to shear through a reduced section in the stud that is located next to the bracket to prevent bending or transmitting other damage to the bracket when excessive loads are encountered. Differently sized shear stops, or more than one shear stop can be used to protect associated mechanical structure from damage.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: May 23, 2000
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Richard A. Jermyn, Jr.
  • Patent number: 6039388
    Abstract: A hood overslam bumper for automobiles has an elastic member, which is mounted to a hood inner panel, and a spring-biased hollow cushion member which is mounted to the upper member of a chassis. The spring of the cushion member is selected from a compression coil spring, a pneumatic spring and a hydraulic spring. When a hood is slammed down, the hood is made to slowly close with the elastic member gradually compressing the spring-biased top wall of the hollow cushion member. Therefore, the hood overslam bumper of this invention effectively absorbs and reduces the slamming impact noises and vibrations occurring in the slamming of a hood, thus allowing a car to be almost completely free from such noises and vibrations.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: March 21, 2000
    Assignee: Hyundai Motor Company
    Inventor: Guk-Sun Choi
  • Patent number: 6035487
    Abstract: A door stop having a retaining member having a shell defining a cavity, and a ledge extending outwardly from a lower portion of the shell, and an elastomeric bumper received in the shell cavity and having an exposed front surface, with the ratio of the length of the exposed bumper front surface to the thickness of the ledge is greater than about 8.0.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: March 14, 2000
    Assignee: Triangle Brass Manufacturing Co.
    Inventor: Ira J. Simon
  • Patent number: 6035488
    Abstract: A sliding door stopper for limiting a sliding movement of a vehicle sliding door in a direction of opening of the sliding door, by abutting contact of the sliding door with the sliding door stopper in a cushioning manner, wherein the sliding door stopper is attached to a guide rail which is mounted on a vehicle body, and the sliding door is suspended from and guided by the guide rail so as to be slidable along the guide rail, the sliding door stopper comprising: an elastic body extending in a longitudinal direction of the guide rail away from the longitudinal end of the guide rail and having opposite longitudinal end faces one of which is adapted for abutting contact with the sliding door, the elastic body having a plurality of concavities each of which is formed in an outer surface of the elastic body so as to extend in a direction intersecting a longitudinal direction of the elastic body which is parallel to the longitudinal direction of the guide rail.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: March 14, 2000
    Assignee: Tokai Rubber Industries, Ltd.
    Inventor: Fukuyoshi Kawakatsu
  • Patent number: 6015173
    Abstract: A guard for a door having a connection body with a hollow trough formed on an underside thereof. The connection body having a front wall with an inverted U-shaped trough. A fixed member is formed with two block pieces connected by a pillar at the center thereof. The two block pieces have an interval therebetween which fits into the inverted U-shaped trough. A suction cup is connected to each of the block pieces.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: January 18, 2000
    Inventor: Chen Shui Shang
  • Patent number: 5983040
    Abstract: A camera comprises a cover of a stowage chamber, such as a film cartridge chamber, and a friction member for giving substantially constant opening-operation resistance to the cover substantially throughout the entirety of a movement range in which the cover shifts from a closed state to a half-opened state, so that the cover is gradually opened by the friction force of the friction member. Thus, an object stored in the stowage chamber is prevented from abruptly popping out of the stowage chamber, and a user's feeling at the time of using the camera is improved. Moreover, the friction member is constituted by a rubber member made of silicone rubber or the like. Thus, the considerable miniaturization of the camera is achieved.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: November 9, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Watanabe
  • Patent number: 5927018
    Abstract: A hands-free door opening device for attachment to a sliding door so that the sliding door can be opened or closed by a person using his or her foot. The device has a base section having a surface adapted for placement against the sliding door, securing means for rigidly securing the base section to a lower portion of the sliding door, and a rigid forwardly extending section connected to and extending from the base section in a direction away from the placement surface. The forwardly extending section extends a distance sufficient to allow a person's foot to engage the extending section to slide the door when the device is secured to the door. The device can be secured to the sliding door with double sided tape, or with screws, or with both.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: July 27, 1999
    Inventor: Colin A. Thain
  • Patent number: 5906701
    Abstract: An apparatus for removal of adhesive-backed objects attached to a liner with the objects and liner constituting a pad which includes a curved surface and a removal head. The curved surfaces preferably a drum, is adapted to receive the pad of the adhesive-backed objects for disposition around the drum with a radius sufficient to spread the individual objects of the pad apart. The removal head is positioned adjacent the drum for selectable engagement with the objects of the pad. The removal head includes at least one piston movable between a first position out of contact with the pad and a second position where the piston contacts the pad and applies a force thereto to securely maintain the position of the pad around the drum. The removal head further includes at least one gripper member positioned for engagement with an individual object of the pad. The gripper member is movable between a first position away from the drum and a second position adjacent an individual object attached to the liner.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: May 25, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Craig R. Smythe
  • Patent number: 5816309
    Abstract: A door edge guard for mounting to the leading edges of a pair of bifold doors has a guard body. The guard body has a rear wall, a front wall spaced apart from the rear wall and resiliently deformable panels extending between the front and rear walls. The front wall, rear wall and side panels define a crush zone therebetween. Weather stripping extends forwardly from the front wall to provide a weather barrier.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: October 6, 1998
    Assignee: The Stanley Works
    Inventor: Bruce D. Paradise
  • Patent number: 5749123
    Abstract: This invention relates to a safety device, and in particular to a safety device for a sliding panel, such as a patio door. The safety device includes an abutment (20), a carrier (21), for the abutment (20), a mounting arm (22) for the carrier (21), a pivot (25) for the mounting arm (22), a support (24) for the pivot (25), resilient bias element (36) urging the mounting arm (22) towards an abutment condition, the resilient bias element (36) being connected between the mounting arm (22) and the support (24), and manually operable member for moving the abutment (20) against said resilient bias (36), the carrier (21) being substantially parallel to the pivot (25).
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: May 12, 1998
    Inventors: Andrew Warren, Desmond Corbett
  • Patent number: 5742979
    Abstract: A rolling support assembly having a carrier with a housing configured for lateral reception within a corresponding cavity in a sliding door for frictional reception therein in a manner precluding longitudinal movement out of the cavity. The carrier mounts and provides for vertical adjustment of a depending wheel set offset to underlie the center of weight of the door and engage a pair of wheel rails provided on an underlying track including rail protecting overlying flanges and/or members.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: April 28, 1998
    Assignee: Rocio Aznar Escolano
    Inventor: Maria del Rosario Garcia-Hernando
  • Patent number: 5740585
    Abstract: A child safety device which prevents children from closing sliding doors and windows which includes a blocking member which is attached to a door or window frame by an attachment member which allows the blocking member to be positioned in a blocking position wherein the blocking member blocks the door or window from being closed.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: April 21, 1998
    Inventor: Harold L. Shapiro
  • Patent number: 5692264
    Abstract: A stop particularly adapted to keep a pivoting member of an automobile, such as a door, ajar so that it is out of contact with the automobile frame during painting, is made of a unitary piece of a thermoplastic material, such as polyphenylene sulfide. The stop can be formed through an injection molding. The stop has a generally elongated body with at least one brace portion adapted to engage a post section of the frame. The stop further has at least one hem flange slot extending generally in the direction of the elongated body, which slot is adapted to receive a hem flange section of the frame. At least one locator extends laterally from the elongated body and is adapted for insertion to a locator opening adjacent the post section. At least one abutting portion extends laterally from the elongated body and is adapted to abut against a portion of the pivoting member to keep the pivoting member from engaging the hem flange.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: December 2, 1997
    Inventor: Gunnar van der Steur
  • Patent number: 5689853
    Abstract: A closure member restraining device 10 is provided which comprises a body mountable on a support surface, such as a wall, adjacent the closure member, a buffer arm 14 and a catch 16. The body comprises a buffer housing with a tubular sidewall 20 and an integrally moulded skirt 22 extending backwardly from the housing. The catch 16 depends from the buffer housing and automatically engages a handle formation on an opened door and restrains the door, so preventing it from closing. The buffer arm 14 is movable into and out of the buffer housing by coaxial screw or sliding movement to pre-set its position so that irrespective of the distance between the handle formation and the closure member, the buffer arm 14 abuts the closure member when the handle formation is engaged by the catch, thereby preventing movement of the closure member.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: November 25, 1997
    Assignee: Vector Designs (Proprietary) Limited
    Inventor: Hermanus Johannes Richard Lemmer
  • Patent number: 5680675
    Abstract: A pivotal sliding bi-fold door structure mounted in a door frame having a track slidably accommodating the bi-fold door structure. The bi-fold door structure comprising at least two door panels pivotally connected by a hinge member. The improvement comprising a bi-fold door safety wedge including a main body structure. A pair of non-parallel edges on opposite sides of the main body structure facing away from each other and extending along the main body structure and nearly intersect to form a vertex at a front portion of the main body structure. Another edge extending between the non-parallel edges at a back portion of the main body structure. An elastic strap for removably elastically securing the main body structure to the hinge member, where the removable elastic securing strap has the characteristic of adjustably positioning the vertex of the main body structure in adjacency with the hinge member when the bi-fold door structure is in an open position.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: October 28, 1997
    Inventor: James P. Davis
  • Patent number: 5675865
    Abstract: A hem flange door stop for use in painting an automobile includes a body, a protruding member contiguous with the body and forming a hem flange groove with the body, a brace contiguous with the body and forming a post slot with the body, and a locator proximate to the brace. The hem flange door stop can further include a stabilizer bar attaching hole formed in the body and can be part of a hem flange door securing system, which includes the stabilizer bar. Also provided is a method of stopping a door including the steps of positioning a hem flange within a hem flange groove such that a post is secured within a post slot and positioning a locator into a post hole. As a result, a stop is fixedly positioned such that a door is prevented from moving beyond a predetermined position relative to the hem flange.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: October 14, 1997
    Inventor: Gunnar van der Steur
  • Patent number: 5547238
    Abstract: A portable doorstop is formed to a circular disk configuration so that the doorstop disk enjoys a stable positionment on the floor surface. The disk upper surface includes a conical surface portion centered on the disk central axis for wedge fit interaction with the lower edge of a door. The disk can be placed in any desired position in the path of the door because the conical surface achieves a wedge fit with the door no matter which area of the conical surface comes into contact with the door lower edge.
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: August 20, 1996
    Inventor: Richard Payette
  • Patent number: 5544388
    Abstract: Provided is an improved stopper structure for defining both opening and closing limits of a lid member such as a trunk lid of an automobile requiring only a minimum number of component parts and a minimum amount of work for the fabrication process. The stopper for defining the opening and closing limits of a lid member attached to a vehicle body via a four-link mechanism 1 comprises a stopper member secured to an inner surface of the lid member, a first abutting surface provided in one of the link arms for engaging the stopper member when the lid member is opened up, and a second abutting surface provided on the vehicle body for engaging the stopper member when the lid member is fully closed. In particular, it is preferable to provide the stopper member with a plurality of contact surfaces having different heights substantially symmetrically around a mounting portion thereof.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: August 13, 1996
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Tatsuo Chiura
  • Patent number: 5517721
    Abstract: A device for releasably holding a door or window comprising two components. The first component (1) is attached to the door or window and the second component (7) is attached to the floor or wall. The two components are releasably engageable with each other. One of the components has a means (10) to cushion the opening force of a door or window, limited movement of an opened door or window, and cushion and direct the engagement of one component with the other. This device has the advantages of releasably holding a door or window and cushioning the door or window during engagement.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: May 21, 1996
    Inventors: Martin K. Roth, Emil Roth
  • Patent number: 5499517
    Abstract: A new and improved rolling gate stopping and locking system comprising a steel pole having a first end, a second end, and an intermediate extent therebetween. The steel pole has an aperture drilled therethrough upwardly of the first end. The steel pole is positionable within an aperture drilled through a stationary portion of a rolling gate. Included in the system is a rubber head having a flat upper surface and a contoured lower surface. The rubber head is secured to the second end of the steel pole. The second end of the steel pole extends upwardly through the contoured lower surface. The contoured lower surface corresponds with the stationary portion of the rolling gate to prevent the rolling gate from advancing thereby opening the rolling gate. A padlock is securable to the aperture drilled through the steel pole. The padlock serves to lock the steel pole to the rolling gate.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: March 19, 1996
    Inventor: Scottland D. McCraw
  • Patent number: 5315894
    Abstract: A stopper device for a linear guide device, the linear guide device comprising a guide rail having axial rolling member-rolling grooves at opposite side surfaces thereof, and a slider loosely fitted on the guide rail so as to move along the guide rail, the slider having rolling member-rolling grooves disposed in opposed relation to the rolling member-rolling grooves of the guide rail, respectively, the slider and the guide rail being movable relative to each other through the rolling of a number rolling members held between the opposed rolling member-rolling grooves.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: May 31, 1994
    Assignee: NSK Ltd.
    Inventor: Toru Tsukada
  • Patent number: 5291631
    Abstract: A flexible, rubber-like member in the shape of a flat "dumbbell" has a pair of holes at either enlarged end thereof for fitment respectively about the opposed knobs or handles of a door with the narrow portion thereof wrapping around the side edge of the door proximal the knobs to prevent closure of the door. In an alternatively preferred embodiment, there is provided a signal generating mechanism for indicating when an attempt is being made to close the door with which it is being used.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: March 8, 1994
    Inventor: Craig A. Schjoneman
  • Patent number: 5276945
    Abstract: A buffering device used in a hinge structure of a lid or cover, such as stool lid of a toilet stool of Western style, which is pivoted on a horizontal axis and generally opened upwards by hand and closed downwards by gravity, comprising two members such as of coaxial cylinder type having mutually facing surfaces, respectively, and being combined coaxially to enable relative rotation, and at least one idle member disposed within a gap between the facing surfaces to roll with the relative rotation, and including no buffering fluid, in which the torque for closure is made large as compared with the torque for opening, so that the lid can be opened lightly when it is opened by hand, while it is automatically braked for preventing it from colliding against the stool body to produce an undesirable strike sound when it is naturally closed by gravity.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: January 11, 1994
    Inventor: Shuji Matsumura
  • Patent number: 5050268
    Abstract: An improved door closer is provided which has a back checking arrangement including a loosely held resilient cushion bar which is engaged by a metallic shield abutting sliding cam plates during a final few degrees of opening of a door to provide an increasing resistance against further opening of the door. The shield preferably engages the cushion bar approximately 4.degree. prior to a normal full open position of the door. Selective thickness of the cushion bar provides either a 90.degree. full open position of the door or a 150.degree. full open position of the door without additional adjustment.
    Type: Grant
    Filed: February 12, 1991
    Date of Patent: September 24, 1991
    Assignee: Thomas Industries, Inc.
    Inventor: George F. Toledo
  • Patent number: 5027471
    Abstract: A door prop device for the purpose of maintaining a hinged door in a propped-open position against the forces of spring tension, wind, gravity, or other causes, which will effectively function without damaging either the door or any adjacent structure and which will function on doors which pivot on vertical axes, horizontal axes, or any pivot axes orientations between vertical and horizontal. The device comprises a block-shaped prop member and a retainer member attached to the prop member. The retainer member is adapted to be placed over and engage with a hinge pin of an opened door hinge whereby the prop member is caused to assume an obstructing position in the space between the separated plates of the opened hinge. When it is desired to close the door, the door prop device is simply removed from the hinge and the door may then be closed.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: July 2, 1991
    Inventor: Larry Barnes
  • Patent number: 4982453
    Abstract: A mechanism for supporting toilet bowl covering members, comprises a cylinder fixedly mounted on a toilet body and rotatably supporting a toilet seat or a toilet lid, lock plates fitted within the cylinder and connected for rotation with the toilet seat or the toilet lid, and a plurality of sliding rings fitted around the lock plates and held in sliding contact with the inner peripheral surface of the cylinder and having respective arcuate recesses of gradually variable arcuate lengths for controlling rotation of said lock plates. When the toilet seat or the toilet lid is rotated to close the toilet body, the lock plantes are also rotated to successively come into contact with steps in the recesses. As a result, the sliding rings are successively pressed against the inner peripheral surface of the cylinder so that the member closes slowly.
    Type: Grant
    Filed: March 27, 1990
    Date of Patent: January 8, 1991
    Assignee: Inax Corporation
    Inventor: Osamu Matsumoto
  • Patent number: 4924549
    Abstract: An adjustable stop which has a socket (1) of which the end surface (2) forms a stop-surface, a housing (3) fitted with holding means for securing the same to a first element (4) and a clamping rod (7) for radially expanding an inner tube portion (6) of the housing (3) so as to lockingly engage the socket (1).
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: May 15, 1990
    Assignee: ITW de France
    Inventors: Henri Morel, Jean-Claude Agrimonti, Bernard Massie
  • Patent number: 4670941
    Abstract: A door hinge unit comprises a first leaf attached to a door, a second leaf attached to a hinge pillar, a hinge pin adapted to be inserted into corresponding bores formed within the leaves of the hinge, a striker mounted to the second leaf, and a check arm mounted to the first leaf and urged into contact with the striker by means of an elastomeric element which preferably comprises a generally annular elastomeric component which may be mounted to a cylindrincal pedestal having an axial groove for accepting a shank of the check arm. The check arm may be furnished with a plurality of indentations allowing the hinge unit to be stopped in any one of several rotational positions of stable equilibrium.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: June 9, 1987
    Assignee: Ford Motor Company
    Inventor: Lawrence D. Peterson
  • Patent number: 4527674
    Abstract: A shock absorber (10) has a rebound stop assembly (22). The rebound stop assembly (22) rests upon a shoulder (30) fixed to a piston rod (16). The rebound stop assembly (22) includes an elastomeric ring (24) interposed between two collars (26 and 28) forming an annular chamber (74) therebetween. At the end of the rebound stroke of the piston rod (16), the rebound stop assembly (22) is axially compressed between the shoulder (30) of the piston rod (16) and the rod guide (18) until the elastomeric ring (24) deforms to abut the inner wall (64) of the working cylinder. As the elastomeric ring deforms, the annular chamber decreases in volume. A restrictive passage (71) allows a restrictive flow of fluid therefrom. An additional chamber (70) is formed which is in restrictive fluid communication through the passage (71) with a section (68) of a rebound chamber (20).
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: July 9, 1985
    Assignee: Ford Motor Company
    Inventor: Jack W. Mourray
  • 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: 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: 4483044
    Abstract: Door speed is controlled by a pneumatic dashpot including a spring-loaded piston having a piston rod which extends through an elastomeric silicone rubber braking sleeve which is longitudinally compressed as the door opens to increase the friction between the piston rod and the sleeve. One or more enlargements on the piston rod provide increased friction as the rod moves through the braking sleeve to control closing speed and to provide greater wind resistance.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: November 20, 1984
    Assignee: National Manufacturing Co.
    Inventors: James R. Johnston, Cordell E. Meiste
  • Patent number: 4218599
    Abstract: This specification discloses a polymer spring including an elongated shank having a first end with a longitudinal slit and an enlarged portion, an integral enlarged head at a second end of the shank opposite from the first end, and an integral, cupped flange for providing a biasing force surrounding the shank and opening toward the first end. Deflection of the flange creates a biasing force tending to cause the flange to return to an undeflected state.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: August 19, 1980
    Assignee: Steelcase Inc.
    Inventor: Larry W. Garn
  • Patent number: 4127269
    Abstract: An improved shock absorber and shock absorber assembly, particularly suited for table games, which cushions the impact of a player figure against the surface of a journal in which the player figure shaft is mounted. It includes a shock absorber body molded of relatively dense rubber and a low coefficient of friction-bearing element molded unitarily therewith. A bore through the member has a cement which grips the shaft and another segment whose inner surface is spaced radially from the shaft. The external shape of the member is frusto-conical with the smaller end facing the playing figure.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: November 28, 1978
    Inventor: Frederick G. Rest
  • Patent number: 3977714
    Abstract: A door stop assembly having a wedge-shaped stop member formed of a resilient material and having a pair of cylindrical projections extending in spaced longitudinal alignment from the undersurface thereof and a stop plate having two pairs of spaced longitudinally disposed openings adapted to receive projections of the stop member. The plate is positioned adjacent the door so that the stop member can be disposed in a jamming position to hold the door closed and a stop position in which the door can be opened slightly.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: August 31, 1976
    Inventor: Floyd Arthur Trotter