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An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
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| Number | Title | Issue Date |
| 7343958 | Overhead door lift system A garage door cable drum is disclosed for a sectional overhead door of a type having a substantially non-linear lift-weight to lift-height characteristic. The drum includes a generally spiral cable groove having a variable minor radius. The groove minor radius at an... | 03/18/2008 |
| 7155778 | Block and tackle window balance with bottom guide roller Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel of a windo... | 01/02/2007 |
| 7100241 | Sprung hinge for closing compartment elements and the like A sprung hinge for elements for closing compartments and the like, comprising a first articulated quadrilateral and a second articulated quadrilateral that are respectively associable with an element for closing a compartment or the like and with a structure that is... | 09/05/2006 |
| 7059379 | Low head room overhead door system with adjustable short radius track section A universal overhead door system includes a pair of horizontal track members, a pair of vertical track members and a pair of track radius members interconnecting the horizontal and vertical track members. A pair of adjustable short radius members extend from the tra... | 06/13/2006 |
| 6922873 | Sprung hinge for closing compartment elements and the like A sprung hinge for elements for closing compartments and the like, comprising a first articulated quadrilateral and a second articulated quadrilateral that are respectively associable with an element for closing a compartment or the like and with a structure that is... | 08/02/2005 |
| 6598264 | Block and tackle window balance with bottom guide roller Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel... | 07/29/2003 |
| 6502281 | Plug for operatively connecting torsion springs to overhead shafts of counterbalancing systems used for garage doors and the like A plug for use in a counterbalancing mechanism of a cable-operated door. The plug is mounted about an overhead shaft and used for operatively connecting the overhead shaft to a torsion spring coaxially mounted thereon. The plug includes a cylindrical coll... | 01/07/2003 |
| 5949810 | Laser guide line system with cylindrical optic element A robust and simple laser guideline system provides a precisely located line image by passing a laser beam through a perpendicularly oriented transparent cylinder. The cylinder may be rotated into or out of the beam providing dual modes of line or dot ima... | 09/07/1999 |
| 5930865 | Extension spring-type assembly for raising sectional door The assembly comprises an extension spring anchored at one end to a winch mounted to the door opening frame. A double-grooved pulley is mounted on a plate secured to the free end of the spring. A fixed second double-grooved pulley is mounted to the door f... | 08/03/1999 |
| 4953256 | Counterbalance mechanism A counterbalance mechanism for negating the force of gravity when moving a display cabinet shelf up or down. The mechanism has a torsion spring counterbalance on a shaft extending the width of the shelf and gears at each end of the shaft which engage trav... | 09/04/1990 |
| 4882806 | Counterbalancing torsion spring mechanism for devices which move up and down and method of setting the torsion springs thereof Counterbalancing mechanism for a garage door or other device in which a torsion spring end member is fastened to a second member to which it is connected during normal operation of the counterbalance by cooperating interfitting elements on the members whi... | 11/28/1989 |
| 4784010 | Electric robotic work unit An electric robot having a base unit which is rotatable about a vertical first axis is provided with a horizontal second axis to which is pivotally mounted a vertical arm. At the other end of the vertical arm, a horizontal arm is mounted which has at the ... | 11/15/1988 |
| 4768762 | Means and method to counterbalance the weight of a body The weight of a pivoted body is counterbalanced by a spring acting on a cam connected to that body to pivot therewith. A band, connected to that spring, attaches to the cam and wraps around the cam. The cam's profile is contoured to produce moment arms of... | 09/06/1988 |
| 4756204 | Counterbalance assembly for rotatable robotic arm and the like A counterbalance assembly for use with a rotatable arm in a robotic manipulator, wherein such arm is rotated about a rotation axis. The assembly further includes one or more compression springs for providing resistance to compressive forces, and convertin... | 07/12/1988 |
| 4753128 | Robot with spring pivot balancing mechanism A robot including a balancing mechanism or balancer with a compression spring which flexes to compensate for the gravitational moment between an arm assembly and a base of the robot. The compression spring is chosen to have a force-deflection characterist... | 06/28/1988 |
| 4383455 | Arm with gravity-balancing function Arm having a gravity-balancing function effective for use in welding robots as well as robots employed in a variety of industrial fields. Projectively provided over the fulcrum of an arm (1) is a rotary sheave (2), whose position is perpendicularly mainta... | 05/17/1983 |
| 4346787 | Energy recovery device The energy recovery device includes a housing having a central shaft which is connected to a lever operating a work-load system capable of generating work-load forces. The central shaft is also connected to a disk having four posts generally parallel to t... | 08/31/1982 |
| 4165121 | Device for opening and closing a side plate of a loading box on a motor truck under no-load condition In a device for opening and closing a side plate of a loading box on a motor truck under no-load condition wherein the side plate is outwardly openably hinged at its bottom edge to the outer side edge of the floor plate of the loading box, an actuating or... | 08/21/1979 |
| 4133074 | Spring assisted door construction A spring assisted cover construction for an opening is disclosed which is easily opened and which can be laid back adjacent the opening essentially parallel to the plane of the opening if desired. Hinge member means are pivotally connected to the frame su... | 01/09/1979 |
