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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 |
| 4952756 | Cover plate for indoor receptacles A spring loaded cover for indoor receptacles such as an electrical outlet is provided to prevent damage to the receptacle and electric shock to children resulting from insertion of objects into an electrical receptacle. The cover has a base plate having l... | 08/28/1990 |
| 4951605 | Litter disposal system A litter disposal system comprises a receptacle, including a bag and a tray, and a support structure for supporting the bag in a suspended position. The bag is formed with opposed flap portions adapted to be engaged to securing pegs depending from a top f... | 08/28/1990 |
| 4949635 | Textile printing apparatus A textile printing apparatus for multicolor printing has a plurality of upper and lower arms radiating from a central hub and axle and which are rotatable with respect to one another. The lower arms have platforms for receiving textile workpieces, and the... | 08/21/1990 |
| 4949263 | Load handling vehicle monitoring system A monitoring system for a fork lift truck or other load handling vehicle comprises a plurality of transducers each assigned to detect a particular condition of vehicle usage; means for deriving from the transducers a plurality of binary signals each repre... | 08/14/1990 |
| 4949318 | Hydroacoustic sonar equipment The invention relates to a hydroacoustic sonar system in which received signals are processed without extensive filtering thereby to conserve higher fourier components of the received signals and so conserve useful information of targets. This is achieved... | 08/14/1990 |
| 4949001 | Partial discharge detection method and apparatus A method and device for detecting a partial discharge pulse in a high voltage conductor in the stator of a motor, turbine generator or the like, comprising a conductive plate having an insulated face, an insulated signal conductor spanning the insulated f... | 08/14/1990 |
| 4944777 | Separating hydrogen from a mixture of substances In separating hydrogen from a mixture of gases by diffusion through a non-porous membrane which is selectively permeable to hydrogen, the hydrogen being at least partially dissociated prior to being contacted with the membrane, the membrane is made up of ... | 07/31/1990 |
| 4937909 | Roller structure for use in a paint roller, and paint roller incorporating the same In order to overcome the disadvantage in paint rollers of the type in which the end portions of the fabric sleeve are reflexly foldably disposed within the end portions of the tubular member and are securely clamped therein that paint may operatively seep... | 07/03/1990 |
| 4934575 | Multiple roll dispenser A dispenser for multiple rolls of sheet material has a housing with a pair of end body portions held in spaced relationship by longitudinal bracing members, and hubs on the end body portions for retaining the rolls. The hubs are aligned in pairs about the... | 06/19/1990 |
| 4932185 | Window cleaner's safety line anchor This invention relates to safety anchors for attachment of safety lines. The prior art anchors have weak resistance to lateral stresses and are susceptible to failure. The invention provides a safety anchor comprising a U-shaped anchor member having a pai... | 06/12/1990 |
| 4932708 | Safety cover for vehicle door mechanisms The present invention provides a cover for use in a vehicle such as an automobile for covering door operating elements thereby concealing them from children. The cover is in the form of a rectangular box-like housing which is placed over any upwardly proj... | 06/12/1990 |
| 4930651 | Storage vessel for liquefied gas at ambient temperature Closed pressurized storage vessels for holding liquefied gases and their vapors under high pressure at ambient temperature are provided on the interior surface with a covering of porous heat-conductive material, e.g. heat-conductive expanded metal foil fo... | 06/05/1990 |
| 4930490 | Gas log apparatus Gas log apparatus utilizes a burner in which a gas/air mixture is distributed to burner ports by a flat horizontal plenum chamber supported by a grate. The ports are rectangular, and formed in lateral ridges in the plenum chamber beneath and to either sid... | 06/05/1990 |
| 4923799 | T cell specific cDNA clone The invention provides a nucleic acid having a sequence which encodes a polypeptide that is at least part of a T cell antigen receptor. This encoded sequence is about 936 nucleotides in length and preferably is a human T cell antigen receptor. The nucleic... | 05/08/1990 |
| 4923037 | Fall arrest device A fall arrest device movable along a vertical lifeline comprises a toothed wheel rotatable in its own housing, which housing is pivoted and spring loaded inside an outer housing, so as to cause the toothed wheel to bear upon a lifeline running within a co... | 05/08/1990 |
| 4922185 | Diagnostic meter base A diagnostic meter base, used for testing the connections of a self-contained meter in a polyphase installation is described. The diagnostic meter base comprises a box-like casing, one end of which defines a socket with contacts to engage respective conta... | 05/01/1990 |
| 4915570 | Body for a trash recycling truck A body for a recycling truck has a plurality of interior movable partitions dividing the interior of the body into compartments. The partitions are hinged at their top edges to pivot rearward of the body. The partitions are locked using a pneumatically ac... | 04/10/1990 |
| 4915556 | Hold-down bracket for pickup trucks A hold-down bracket is provided for releasable engagement in a post pocket of a pickup truck, having a molded U-section body which resiliently clips into the pocket and is held there by external flanges, and a retainer member, preferably tubular, which sn... | 04/10/1990 |
| 4914706 | Masking sound device A masking sound source for a sound masking system has adjustable preset means for adjusting the spectral shape of the sound produced. The source includes a random noise generator for producing white noise and having two incoherent outputs in which two low... | 04/03/1990 |
| 4914160 | Deuteration of unsaturated polymers and copolymers The addition of deuterium to poly(1,3-dienes) and to elastomeric copolymers of 1,3-conjugated dienes with vinyl monomers produces elastomeric materials having signficantly enhanced resistance to oxidation compared to either the hydrogenated or the untreat... | 04/03/1990 |
| 4913849 | Process for pretreatment of chromium-rich oxide surfaces prior to decontamination A process for pretreatment of chromium-rich oxide surfaces of nuclear reactor cooling system components involves application of a dilute acidic reagent comprising potassium permanganate and chromic acid, at elevated temperatures.... | 04/03/1990 |
| 4913789 | Sputter etching and coating process A process for coating a diagram on a substrate is disclosed, wherein a metal mask is applied to a prepared substrate and subjected to vacuum etching followed by vacuum sputtering. The sputter coating is accomplished at high vacuum using a plurality of spi... | 04/03/1990 |
| 4910440 | Electronic constant power ballast for arc lamps In a power supply for an arc lamp in which a power source feeds an inverter consisting of a bridge network of field effect transistors, the current to the inverter is controlled by a switching transistor in accordance with the voltage applied bridge netwo... | 03/20/1990 |
| 4907782 | Tensioning stringing davit for power lines A tension stringing davit for use in the stringing of power transmission lines between utility poles attaching temporary side guy cables, and maintenance of power transmission lines, is adapted to be mounted directly on an insulator stand-off bracket inst... | 03/13/1990 |
| 4905803 | Brake actuators for bicycles In a spring clutch arrangement for housing in the lower bracket of a bicycle in order to operate a bicycle brake, a conventional waisted pedal crankshaft is modified to provide a cylindrical surface which supports the clutch spring by application of a res... | 03/06/1990 |
| 4905428 | Partition structures and frame elements therefor Partition structure has a rigid rectangular frame and rigid rectangular panels received in openings on opposite sides of the frame, with a small clearance between the edges of the panel and the frame. One panel edge is pivotally connected to the frame. Th... | 03/06/1990 |
| 4897955 | Wooden landscaping structures a landscaping structure and kit for constructing the same comprises pieces of timber having similar square cross sectional dimensions which are arranged in at least one geometrical shape having at least two rounds of timbers. Overlapping timbers form corn... | 02/06/1990 |
| 4894075 | Filter for a fluidized bed powder coating apparatus A filter for a fluidized bed powder coating apparatus is located within the fluidized hopper and fits about the end of a tubular conduit connecting the hopper to a spray gun. The filter is an enclosure having a plurality of holes through its walls which a... | 01/16/1990 |
| 4893940 | Stirrer device for a beverage pitcher, and beverage pitcher incorporating such a stirrer device There is provided a beverage pitcher in which is mounted a stirrer device for stirring or agitating the contents of the pitcher. The stirrer device includes a plurality of axially spaced vane lobes which are substantially equiangularly spaced about a long... | 01/16/1990 |
| 4891473 | High voltage insulators constructed to have plural dry bands in use The invention relates to high voltage suspension insulators of the single disc type and high voltage station post insulators consisting of unitary insulator sections. The insulator elements are designed so as to maximize the number of dry bands under adve... | 01/02/1990 |
| 4891666 | Copy indicator for a document A printed background pattern for a document is described, wherein the pattern masks a copy indicator which is revealed upon making a copy of the pattern using a digital optical scanning means. The background pattern comprises an area of microprinting with... | 01/02/1990 |
| 4890266 | Acoustic range finding system In acoustic level sensing apparatus, in which pulses of acoustic energy are transmitted by an electrically energized transducer towards a surface to be sensed, and the electrical output from the transducer following the pulse is digitized and analyzed to ... | 12/26/1989 |
| 4886495 | Vial-based prefilled syringe system for one or two component medicaments A prefilled syringe for one or two component medicaments is based upon the use of a vial containing a medicament or one component of a medicament, the vial having an open bottom closed by a piston. When the piston is coupled with a plunger, and an adapter... | 12/12/1989 |
| 4884371 | Corner connector for sliding doors Corner connector brackets, for connecting rails and stiles applied to a panel to form a sliding door, and for supporting arms carrying rollers or guides for the door, have snap in connections to the rails and stiles to be connected, and are positively ret... | 12/05/1989 |
| 4884529 | Steam generator A compact instant steam generator is provided for on site use where various qualities of steam may be required. A water jacket cooled combustion chamber having a burner at one end and a water spray nozzle at the other end is used. In operation, a water sp... | 12/05/1989 |
| 4883760 | Device for performing enzyme immunoassays The device has a transparent capillary assay tube attached at its upper end to a lateral portion of the support structure of the device. The lower free end of the assay tube is engageable with an absorbent material upon manual downward deflection of the s... | 11/28/1989 |
| 4878677 | Shut off seal about a shaft of a device having a side entry into a tank A shut off seal in a device having a rotatable shaft extending through a nozzle side entry structure of a tank is provided by means of a slidable stuffing box housing which can be moved by jack screws into engagement with a sealing collar fastened to the ... | 11/07/1989 |
| 4869197 | Bulge indicating method and device A method and device for indicating the swelling of a casing or the like having a wall with at least one generally planar portion prone to deformation by pressure buildup within the casing. The device comprises an elongate strip of visible frangible materi... | 09/26/1989 |
| 4869918 | Method for extracting nutritive factors from raw vegetable materials using fluid milk by-products Stable, edible protein-lipid food products are prepared by the comminution of raw vegetable material with fluid by-products of milk, such as cheese whey. Fluid by-products of milk have been found to be superior solvent systems for the extraction of stable... | 09/26/1989 |
| 4864668 | Portable back support A portable back support having a insert enveloped by a sleeve, forming a cushioned rigid portion and a flexible flap. The back support is dimensioned to support the lumbar and much of the thoracic regions of the spine and is narrower than the distance bet... | 09/12/1989 |
