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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 |
| 4280397 | Hydraulic fluid control apparatus The hydraulic fluid control apparatus has velocity control means and pressure control means. The apparatus has hydraulic fluid entry means for receiving hydraulic fluid and hydraulic fluid discharge means for supplying pressurized hydraulic fluid to hydra... | 07/28/1981 |
| 4280398 | Rapid release mechanism for a spring-loaded brake cylinder A spring-loaded braking cylinder has a rapid release mechanism which disengageably connects the spring-loaded piston with the piston rod. A damping mechanism damps the relative movement between the piston and the piston rod which occurs upon release of th... | 07/28/1981 |
| 4280399 | Roof ridge ventilator A flexible, one-piece, corrugated, roof ridge ventilator is disclosed which may be mounted transversely across any roof ridge regardless of its contours or roof angles. It has a plurality of longitudinally extending peaks and valleys with side walls exten... | 07/28/1981 |
| 4280400 | Fume cupboards A fume cupboard which comprises a ventilated enclosure provided with an access opening. A cowling is provided along at least one edge of the opening, the cowling being spaced from the edge so that air flow channel is defined between the edge and the cowli... | 07/28/1981 |
| 4280401 | Brew rail adapter An adapter to releasably engage a small brew cone for a small coffee brewing machine with the cone engaging rails of a large coffee brewing machine; said coffee brewing machine has a hot water dispensing head with a bottom surface, a water discharge openi... | 07/28/1981 |
| 4280402 | Crepe cooking machine A crepe cooking machine including a cylindrical metallic drum with a row of metallic cooking pads around its circumference. Infra-red burners inside the drum are supported on the shaft of the drum by mounting them on a rotary bearing. A tray for batter is... | 07/28/1981 |
| 4280403 | Bale density control system Hydraulic "squeeze cylinders" control the size of the discharge orifice on an extrusion baler and are operated by a control circuit that relieves pressure in the cylinders in response to the build-up of a certain predetermined pressure level in the circui... | 07/28/1981 |
| 4280404 | Printer having variable hammer release drive In a dot matrix line printer in which selected ones of a plurality of hammers mounted on a reciprocating hammer bank are released in response to successive sets of serial data to print dots on a paper, the changing hammer release characteristics which are... | 07/28/1981 |
| 4280405 | Assembly for supporting printing screen An assembly for supporting a cylindrical screen used for printing fabrics and the like. The assembly includes a screen supporting ring which may or may not have teeth on the perimeter thereof. A tensioning ring is nested in the screen supporting ring and ... | 07/28/1981 |
| 4280406 | Rotary printing machine A rotary printing machine for printing several colors on continuously fed sheets comprises a cylinder for driving a web disposed at the web inlet in the printing machine and coupled to a speed variator. A rotary cutting device is disposed downstream of the web... | 07/28/1981 |
| 4280407 | Explosive package assembly An explosive package is provided which is particularly adapted to be placed against and around the inside and outside curvature of a metal pipe for explosive welding purposes. The package is a substantially flat trapezoidal-shaped container, the shorter, ... | 07/28/1981 |
| 4280408 | Projectile A projectile with a penetrating member, in which a pyrotechnic composition is arranged ahead of and rearwardly of the penetrating member. The forward composition, preferably incendiary, is encompassed by a ballistic hood, the rearward composition being at... | 07/28/1981 |
| 4280409 | Molten metal-liquid explosive device A explosive device comprising: (1) a metal liner composed of a metal selected from the group consisting of luminum, magnesium, copper, and brass, the liner enclosing a chamber; (2) a liquid contained in the chamber; (3) a layer of pyrotechnic material surrounding th... | 07/28/1981 |
| 4280410 | Electrical projectile detonator An electrical projectile detonator, particularly a base detonator, containing a piezoceramic cell as a current generator. The cell is retained against the inside of the projectile base or base screw. A rupture plate is positioned on the outside of the bas... | 07/28/1981 |
| 4280411 | Aerial car suspension In an aerial transport system having an aerial track such as a cableway or tramway and one or more carriages travelling along the track, a structure for suspending the carriage from the track comprising a beam, both ends of which are pivotally connected t... | 07/28/1981 |
| 4280412 | Independent suspension system for attraction type magnetically floated travelling body An independent suspension system is provided for an attraction type magnetically floated travelling body wherein plural modules, each of which is obtained by assembling one or a plurality of electromagnets in combination with a brack and a linear motor, a... | 07/28/1981 |
| 4280413 | Conveyor system A conveyor system comprising a motor power unit, a load carrier and a track along which the motor power unit and the load carrier can move. A vacuum pad is mounted on the motor power unit and extends rearwardly and a vacuum power unit is mounted on said m... | 07/28/1981 |
| 4280414 | Anti-vandalism, sectionalized panel, outside metal guard for windshield A sectionalized panel of metal for guarding exposed windows on vehicle cabs and passenger compartments to protect from vandalism such as stone throwing. It serves on the outside as a stone-shield or night guard particularly for tractor cab windshields and... | 07/28/1981 |
| 4280415 | Method and apparatus for drying and processing moisture-containing solids A method and apparatus for drying and processing moisture-containing solids comprising organic and/or mineral inorganic components, wherein a maximum utilization of energy is attained by providing for an energetic cross-linkage between the drying and subs... | 07/28/1981 |
| 4280416 | Rotary valve for a regenerative thermal reactor An apparatus for the elimination of fumes and odors from exhaust gases simultaneously with the recovery of heat from such gases and, in particular, a rotating control means for controlling the flow of such gases, in sequence, through heat exchange chamber... | 07/28/1981 |
| 4280417 | Incineration plant A combustion process and a plant therefor, said process comprising the steps of introducing combustion material into a first chamber included in the plant and burning said combustion material therein, and finally burning out and treating in a second chamb... | 07/28/1981 |
| 4280418 | Method of combining in-the-mill drying and firing of coal with enhanced heat recovery A method for drying coal in a coal mill and pneumatically conveying it to a kiln for burning, with a portion of the coal-dust-laden air generated thereby being diverted to a clinker cooler adjacent the kiln in order to ignite the suspended particles and s... | 07/28/1981 |
| 4280419 | Pneumatic system for conveying granular material A pneumatic seed planter utilizing air pressure to dispense the seeds in a central hopper to a plurality of laterally spaced seed planting assemblies. Mounted on the planter is a system for dispensing granular chemicals such as fertilizers, herbicides and... | 07/28/1981 |
| 4280420 | Automatic embroidery sewing machine An embroidery sewing machine is provided for automatically driving an embroidery frame along X and Y axes. The bed of the machine is provided with a pair of parallel slots extending parallel to the X axis. A pair of carriages extend through said slots and... | 07/28/1981 |
| 4280421 | Open edge folder As a web of material is guided along an L-shaped path toward a sewing station, the web is progressively folded in the first leg of the L-shaped path, and the web is refolded into a binding fold as it turns from the first leg to the second leg of the L-sha... | 07/28/1981 |
| 4280422 | Guide device for sewing machines A guide device for a sewing machine, having a needle for sewing a stitch line in a sewing direction and a presser bar, for sewing together fabric plies of unequal thickness, comprises, a main sole part, with a stitch hole for the passage of the needle, co... | 07/28/1981 |
| 4280423 | Display arrangement for giving a visible pattern corresponding to one or more stitch parameters in a sewing machine A variable voltage, the magnitude of which corresponds to the controlled gain of a circuit through which stitch parameter controlling signals are passed is generated at the wiper arm of a potentiometer connected across a voltage source. The voltage thus o... | 07/28/1981 |
| 4280424 | Household type sewing machine having microprocessor control An improved household type sewing machine having a needle bar and a feed dog wherein an actuator adjusts the transverse position of the needle bar and the positional displacement of the feed dog in response to control signals provided thereto, in which a ... | 07/28/1981 |
| 4280425 | Method and apparatus for electro-pneumatic control of a stitching machine Method and apparatus for electro-pneumatic control of a stitching machine, operable either in the automatic or semiautomatic mode. Following initiation of a stitching operation through actuation of the present control system, the system internally of itse... | 07/28/1981 |
| 4280426 | Method of manufacturing wheel discs A wheel disc and method of manufacture wherein disc blanks are punched from a continuous length of strip material in an enchelonned nested pattern so as to minimize stock scrap and wastage. The disc blanks are substantially flat and have a peripheral edge... | 07/28/1981 |
| 4280427 | Easy open can end This application is concerned with a can end comprising an end plate and a tab, the tab and end plate being so adapted to one another that by bending of the tab up by one desiring to open the can, the tab forces a section of the can to pivot inward, thus ... | 07/28/1981 |
| 4280428 | Non-heeling sailboat A non-heeling sailing vessel having: a payload bearing first displacement hull with a pair of longitudinally spaced control surfaces rigidly mounted thereto in fixed alignment and extending downwardly therefrom into the water, a rigid support structure rigidly... | 07/28/1981 |
| 4280429 | Floating boat storage dry dock A floating dry dock for a boat comprising a tubular, boat-supporting platform made from a planar array of interconnected PVC conduit (or similar material) and a pair of vertical, buoyant, tubular side walls connected to the platform. The dock includes an ... | 07/28/1981 |
| 4280430 | Linked-spar motion-compensated lifting system A system for operating a lifting cable over the side of a ship at sea in ch a spar buoy having an adjustable lifting capacity is coupled to the ship by a rigid linkage which is free to pivot on an axis attached to the deck. The lifting cable is suspended... | 07/28/1981 |
| 4280431 | Device for supporting and storing the mainsail of a sailboat on the boom thereof A device for supporting and storing the mainsail of a sailboat on the boom thereof comprising one or more support members composed of a resilient material having resilient clamp apparatus at a median portion thereof adapted to be mounted in clamping engag... | 07/28/1981 |
| 4280432 | Quick-release fitting for a sailboat stay A quick-release fitting for tensioning and untensioning a sailboat stay that extends between the hull and a mast of the sailboat. Upper and lower barrels are connected together by a release lever that is held in place by a quick-release pin. When the pin ... | 07/28/1981 |
| 4280433 | Underwater appendages for vessels A keel assembly or similar fin-like underwater appendage for a boat is provided which is adjustable to adapt its characteristics to the operating conditions of the boat, for example to optimize hull performance of a sailing boat on opposite tacks. The ass... | 07/28/1981 |
| 4280434 | Cover plate construction for boat decks A threaded access cover plate construction for boat decks, comprising a threaded fitting which is adapted to be secured to the deck, and a screw closure receivable in the fitting. Both the fitting and the closure have cooperable buttress-type threads whic... | 07/28/1981 |
| 4280435 | One piece anchor for adjustably tethering a rope suspended boat fender A novel one piece anchor is described for adjustably tethering a rope suspended boat fender against the side of a boat so that the boat fender will be appropriately positioned with respect to the level of a dock against which the boat may be moored. In th... | 07/28/1981 |
| 4280436 | Boat hull anti-fouling shroud A selectively floatable protective shroud is disclosed for protecting a boat hull from fouling by marine organisms. The assembly consists of an inflatable, elongated toroidal bladder with an inner opening larger than the circumference of the hull of the b... | 07/28/1981 |
