Abstract: The invention is directed to an adjustable head support for a dental treatment chair, which is a reclining chair with an adjustable head rest or support. In order to better match the kinematics of the adjustable head support to a natural tilting motion of a patient's head, it is proposed that a quadrilateral linkage pivotally connects an upper region of the back rest to the head rest and the connection of the linkage to the head rest is shifted as the head rest tilts to cause a point on the head rest to move in an arc having a center roughly in the cervical vertebra joint of the patient lying in the chair.
Abstract: A corner construction method and apparatus is disclosed including an extrusion construction for mating with and joining a pair of side panels. The extrusion includes a plurality of surface sections defined in cross-section by at least one elongate rib section, squared corners positioned at one end of the rib section, a pair of external leg sections at the other end of the rib section and a pair of internal leg sections parallel to the external leg sections and located along the rib section substantially midway between the squared corners and the external leg sections. A normal projection of each internal leg section onto the adjacent external leg sections ends substantially halfway along the length of the external leg section and apertures are provided for passing screws through the portion of the external leg section beyond that normal projection. The internal leg sections are substantially half agains as thick as the external leg sections.
Abstract: A combined table and bench assembly for indoor and outdoor use, capable of being assembled and disassembled without tools. The component parts of the assembly fit together solely with interlocking notches and/or protrusions. The assembly is sturdy and will withstand rugged use. Yet, it is light enough to be easily transported. The parts of the assembly may be conveniently stored and transported in a compact wheeled carrier.
Abstract: The present invention is directed to a food treatment device having a cabinet defining a food treatment space and an opening permitting access to the space, a pivotally mounted door movable between closed and open positions, a tray for supporting food and mounted for movement through the cabinet opening to selectively place food in the treatment space and withdraw food therefrom, and structure for moving the door from its closed position to its open position as an incident of movement of the tray out of the storage space and for moving the door from its open to its closed position as an incident of movement of the tray into the treatment space.
Abstract: A mechanism for adjusting the height and viewing angle of a flat panel display which is viewed in conjunction with a portable personal computer. The mechanism includes a pair of arms that swing the display panel betwen the lowered and raised position, cooperating with a cam wheel moveable in a cam track. In a raised position, the flat panel display may be adjusted in viewing angle. In a lowered position the flat panel display may be securely latched to the portable personal computer to protect the display from damage.
September 2, 1988
Date of Patent:
May 23, 1989
Compaq Computer Corporation
Tom Mitchell, Gary L. Williams, Richard V. Haner
Abstract: A variable posture chair (1) including a horizontally oriented seat (2), a vertically oriented body support platform (2) and an upwardly inclined leg support platform (4) is disclosed. At least one of the body support platform (2) and leg support platform (4), and preferably both, are movably mounted with respect to the seat (3) to enable support of the user in any one of six support posture modes. Both the body support and leg support platforms (2,4) are pivotally mounted about a central post assembly (10) for the seat (3). A method of supporting a user on the posture chair (1) is also disclosed.
Abstract: In a motor-driven seat, the seat cushion and the seat back are driven by a slider motor and a knuckle motor in response to operation of respective switches. The motor-driven seat is further provided with an additional driving circuit which is adapted to receive power from a power source other than the battery mounted on the vehicle body and drives the slider motor and the knuckle motor so that the seat back is inclined rearward in response to forward or rearward sliding movement of the seat.
Abstract: An arrangement for mounting a removable accessory such as a drawer unit to the underside of a work surface without the use of tools. A pair of front and rear slot and projection couplings are used to mount the accessory on the underside of the work surface, and a manually-releasable spring-urged latch device automatically locks the accessory to the work surface when the projections are fully engaged with the slots.
Abstract: A positioning device is used for the positioning of a chair seat as to its inclination, or for positioning a back-rest member of a chair. The positioning device is constructed such as usual hydropneumatic springs which can be locked by closing a passage connected to working chambers on both sides of a piston. The working chambers are filled with an operating liquid. In order to adapt the biasing force of such a positioning device, one of the working chambers is conneced with a force-measuring device, which force measuring device is provided within the force transmission path of the respective chair column. The force measuring device comprises a measuring space filled with operating liquid, and this operating liquid is in liquid connection with one of the working chambers.
May 1, 1987
Date of Patent:
May 16, 1989
Castor Fuhrmann, Hans-Josef Hosan, Axel Knopp, Gerd Wurges
Abstract: A chair and cushion assembly is disclosed. The assembly comprises a first frame component, a second frame component, and a back cushion. The first frame component includes a generally upright back support member of generally inverted U-shape. The second frame component includes a generally upright cushion support member of generally inverted U-shape. The cushion support member is positioned generally parallel to and spaced below the back support member. The back cushion has a pocket formed on the rear surface thereof, with the pocket receiving the cushion support member so that the back cushion is secured in place thereby.
August 13, 1987
Date of Patent:
May 9, 1989
Winston Furniture Company of Alabama, Inc.
Abstract: A drawer device comprises a drawer and a frame. Either the drawer or the frame is provided with a rack extending in the direction of movement of the drawer, and the other is provided with a rotary damper, which inlcudes a spiral spring adapted to be wound from one end thereof as the drawer is pushed into an accommodation space in the frame, a locking member for locking the spiral spring against unwinding when the drawer is pushed into the accommodation space and a gear capable of being rotated in the forward and reverse directions under a braking force with the movement of the drawer. The gear and rack are coupled together. A bearing is provided between cooperating, relatively slidable surfaces of the drawer and frame.
Abstract: A portable table and chairs therefor which may be foldable for carrying, but used in the extended mode as a table primarily for the outdoors, such as at the beach, etc. The table having chairs attached includes folding arms which are connected to legs of the folding chairs and also includes a supporting rod to enable the folding of the legs. It also highlights a foldable supporting element which connects table and folding chairs to each other. Protected hinges are provided to allow half-folding of table sections and locking means therefor are provided to maintain, with the hinges the shape of a container when table sections may be half-folded.
Abstract: A cabinetry door including a first member having a backwardly extending peripheral border and a second member having a forwardly extending peripheral border with a peripheral flange, wherein the peripheral flange of the second member is attached to the first member within its peripheral border. In a transparency viewer embodiment, the first member includes an light-transmitting portion and a transparency holder, and a light source is disposed between the first and second members.
July 18, 1983
Date of Patent:
April 25, 1989
Randall N. Bartlett, Robert Case, John Sauls, Arden Jenkins, James McNew
Abstract: An automobile rear seat assembly which comprises a cushioning body, a base member for the support of the cushioning body and mounted on the base member for displacement in a direction parallel to the longitudinal sense of an automobile, a seat back pivotally mounted at a lower portion on the base member, a pair of spaced, telescopically extendable rail assemblies through which base member are mounted on a floor panel of the automobile for displacement in a direction parallel to the longitudinal sense of the automobile, and a plurality of guide members rigidly connected with one of the cushioning body and the base member while permitting the other of the cushioning body and the base member to be slidable relative to the guide members.
Abstract: A refrigerator cabinet includes an outer housing having substantially parallel, spaced apart side walls connected by a top wall. A front face extends along the top and side walls and includes a peripheral groove open to the front of the cabinet. The groove has spaced apart, substantially flat lateral walls perpendicular to the front of the cabinet. A first cross-member extends between the side walls below the top wall to divide the cabinet into upper and lower sections. The first cross-member includes an upper groove open to the front of the cabinet and having spaced apart, substantially flat lateral walls perpendicular to the front of the cabinet. The upper groove connects with the peripheral groove at each side of the cabinet to form a first continuous channel encompassing the upper section. The first cross-member also includes a lower groove open to the front of the cabinet and having spaced apart, substantially flat lateral walls perpendicular to the front of the cabinet.
Abstract: A gear operated seat recliner mechanism is described which is particularly useful in connection with motor vehicle occupant seats. The recliner permits the angle between the seat back and seat bottom to be varied as desired by the seat occupant. In accordance with this invention, the upper recliner structure pivots about the lower recliner structure and a quadrant component, which pivots with the upper recliner structure, includes a curved toothed rack. The rack meshes with a gear mounted to the lower recliner structure. A pawl is adjustable between an engaged position which fixes the seat back angle to a disengaged position permitting the seat back angle to be changed relative to the seat bottom. This design improves over prior art designs in that it employs fewer parts, is less costly to produce, and further, permits very fine adjustments in the seat back angle.
Abstract: A bidirectional transfer mechanism is provided for independent or simultaneous X-axis and Y-axis precision displacement of a mobile component, such as a video cassette pick-up unit for retrieving or returning video cassettes from a cassette library. The transfer mechanism comprises an upright column assembly supported on a machine frame for X-axis displacement and carrying the pick-up unit for Y-axis displacement. A first drive cable is connected to the upper and lower ends of the column assembly and threaded over a first set of pulleys on the machine frame, with a portion of the first cable being wrapped about a motor-driven winding drum for displacing the column assembly in the X-axis direction. A second drive cable has a portion thereof wrapped about another motor-driven winding drum and is threaded about a second set of pulleys on the column assembly and the pick-up unit, whereby drum rotation displaces the pick-up unit along the column assembly in the Y-axis direction.
Abstract: A filing cabinet includes a safety interlock that prevents more than one drawer from being opened at a time. The safety interlock comprises a column of endwise abutting catches mounted to the cabinet wall for vertical reciprocation thereon. The ends of the catches are formed with tabs. The tabs of adjacent catches cooperate to define gaps of predetermined spacing. Actuator means on each cabinet drawer are aligned with the catch gaps. When a selected drawer is opened, the actuator means thereon enters the associated gap and displaces upwardly any higher catches. Upward displacement causes the gaps between higher adjacent catches to be displaced into the paths of the actuator means of any higher drawers, thereby preventing any higher drawers from being opened. The retainer of an open drawer blocks upward displacement of any lower catches, thereby preventing lower drawers from being opened. A slide is reciprocably mounted on each retainer.
Abstract: A reclining chair is provided comprising a frame and a seating secured to said frame by a flexible member. The flexible member passes over and is captured by rolls whereby the seating is suspended from the frame. The flexible member may be affixed at its ends to the frame or the seating and the rolls are affixed to the other of the frame and seating. The frame may be hollow and the flexible members and/or rolls may be positioned within the frame.
Abstract: A lightweight, collapsible preferably PVC formed glove bag asbestos brake removal/confinement system. The bag includes removable stiffening ribs and a flexible membrane or bunge controlled opening in one end to mount the bag over the brake assembly. The bag can be suspended from the automobile itself, such as by a mechanical clamp or magnetic plate assembly, or from any convenient location. The bottom of the bag includes an access zipper for removing or placing tools or the brakes in the bag. The bag optionally includes a removable bottom protective panel to prevent penetration of the bag by tools or brakes dropped thereon.