Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 5939125 | Apparatus and method for cooking and holding food items An apparatus is disclosed having a plurality of elongated plates arranged to form elongated shelves to cook food items and additional plates arranged as troughs to hold the cooked food items for sale, each plate has a through bore connected to form a cont... | 08/17/1999 |
| 5584188 | Refrigerated beverage trailer A refrigerated beverage trailer is disclosed having floor, wall and roof members formed of polyurethane with a covering layer of fiberglass reinforced resinous material to form a monolithic enclosure with a closure member. Beverage dispensing spigots are ... | 12/17/1996 |
| 5474003 | Pneumatic sewing machine A pneumatic sewing machine having a housing mounting a presser foot and needle bar for reciprocatory movement and a bobbin for rotary movement, a rocker arm pivotably mounted on the housing having one end attached to the needle bar and the other attached ... | 12/12/1995 |
| 5421246 | Enclosure having a rack for heating or cooling food products An enclosure is disclosed for heating or cooling food products on a pan. The enclosure preferably has transparent side walls, a closure member and a rack comprising a plurality of vertically spaced-apart pan supports each comprised of a plurality of inter... | 06/06/1995 |
| 5381670 | Apparatus for cooling food by conduction A method and apparatus for cooling foodstuff to a temperature of less than 40° F. within the legally mandated time of 4 hours which consists of a refrigeration apparatus capable of forming a bank of ice and means for circulating water over the ice and th... | 01/17/1995 |
| 5341653 | Apparatus and method for disposing of condensate from evaporator drip pans An apparatus and method for disposing of the condensate collected in the drip pan of the evaporator coil of a refrigeration system located within a storage enclosure. An air pump is used to withdraw the condensate by aspiration from the drip pan and depos... | 08/30/1994 |
| 5251911 | Safety construction for passenger vehicle A safety construction for a passenger vehicle having a fixed body portion secured to a chassis and a separable body portion comprising a passenger compartment with a platform secured to the chassis by a resilient release system. The release system include... | 10/12/1993 |
| 5203258 | Apparatus for heating food articles An apparatus for heating food articles including a chamber containing a plurality of vertically, spaced-apart supports, each having a hollow interior which is interconnected by a single conduit. A thermostatically controlled steam generator is connected t... | 04/20/1993 |
| 5201364 | Apparatus for heating and cooling food articles having removable plates with fluid sealed therein An apparatus is disclosed for heating or cooling food articles including a chamber containing a plurality of tubular, vertically, spaced-apart support means having a fluid inlet and outlet. A plurality of removably mounted hollow plates each having a plur... | 04/13/1993 |
| 5124896 | Fluorescent lamp fixture A fluorescent-type lamp fixture is disclosed which can be rapidly assembled and has channel and cover members each with means to enable the members to be snapped together. The cover member carries spaced-apart holders for receiving the lamp and other elec... | 06/23/1992 |
| 5112371 | Radial flow cooling tower A radial flow cooling tower is disclosed employing a novel circular support structure for housing both a plurality of sections of fill media and sections of a means for entraining fluid droplets and which permit their easy removal for cleaning or replacem... | 05/12/1992 |
| 5088550 | Radial flow heat exchanger A heat exchanger for fluids is disclosed having a support assembly for the coil bundle which comprises two vertically spaced-apart support members between which the coil bundle of the exchanger is positioned. The bundle comprises a plurality of vertically... | 02/18/1992 |
| 5086693 | Apparatus for heating and cooling food articles An apparatus is disclosed for heating or cooling food articles including a chamber containing a plurality of vertically spaced-apart supports for food articles, each support has a plurality of spaced apart tubular members connected to first and second ple... | 02/11/1992 |
| 4925509 | Method of making a frameless refrigerated storage enclosure A refrigerated storage enclosure has its wall, floor and roof panels made of polyurethane initially joined together by skewers. The inside surfaces of the panels are covered with a layer of fiberglass reinforced resin to permanently join the panels as is ... | 05/15/1990 |
| 4864788 | Building construction element and the machine and method for its manufacture A building construction element such as insulative siding is disclosed having an outer skin with an inner surface on which a plurality of individual, spaced-apart, arcuate-shaped projections are cut or gouged from the inner surface by a cutting tool means... | 09/12/1989 |
| 4848305 | Dual ignition system for internal combustion engines A dual ignition system is disclosed wherein adjacent first and second current interrupter means are provided for each cylinder on the ignition timing means for an internal combustion engine to furnish successive sparks during the power stroke by means of ... | 07/18/1989 |
| 4767581 | Building construction element and the machine and method for its manufacture A building construction element such as insulative siding is disclosed having an outer skin with an inner surface on which a plurality of individual, spaced-apart, arcuate-shaped projections are cut or gouged from the inner surface by a cutting tool means... | 08/30/1988 |
| 4697367 | Buttplate with sliding cover for buttstock storage chamber A buttplate is disclosed for a firearm buttstock of the type having a chamber therein for storing cartridges and the like. The buttplate has a plate member with an opening to permit access to the chamber and a channel in communication with the opening for... | 10/06/1987 |
| 4632787 | Evaporative heat exchanger A heat exchanger is disclosed having a coil positioned between an outer casing member with a bottom having a sump formed therein and an inner casing member containing a rotatable shaft to which a fan is mounted. The fan has a first stage or set of blades ... | 12/30/1986 |
| 4615176 | Cooling method, system and apparatus for minimizing dehydration of fresh meat products and the like A method, system and apparatus is disclosed for rapidly cooling and simultaneously maintaining a high moisture content in freshly slaughtered meat products and the like placed in a controlled environment chamber through which preconditioned air is circula... | 10/07/1986 |
| 4549329 | Portable wet and dry self-cleaning vacuum device A self-cleaning, portable vacuum device is disclosed for picking up, storing, and subsequently discharging liquid, semi-liquid or dry material. The device includes a housing having an electric motor for driving a vacuum pump which draws the material up a ... | 10/29/1985 |
| 4547995 | Removable sash guide for window frames A window construction is disclosed of the type having sashes slidable within a frame and maintained in alignment therein by means of guide strips adjacent the sashes which, due to their unique design, are capable of being removed from channels in the fram... | 10/22/1985 |
| 4525679 | High gain amplifying stage by output conductance cancellation A Metal-Oxide Semiconductor (MOS) high gain amplifying stage which overcomes the inherently low transconductance, gm, of MOS transistors is described. This is achieved by using a specially configured load transistor in combination with a driver transistor... | 06/25/1985 |
| 4521904 | Method of and cassette for taking X-ray photograph A method of taking an X-ray photograph by using a cassette containing an X-ray film and a stimulable phosphor sheet maintained in close contact with each other in a light shielding case. When the cassette is exposed to X-rays through an object, an X-ray t... | 06/04/1985 |
| 4521877 | Reproducing stylus and method of making same A reproducing stylus for a record having a sound groove, said stylus formed by removing front and back portions of its contact area with the sound groove to obtain an edge line portion having an orientation perpendicular to the direction of record travel ... | 06/04/1985 |
| 4517071 | Ionic activity measuring device An ionic activity measuring device comprising a substrate provided with at least one opening for receiving a terminal made of a metal layer or a metal layer and a water insoluble metal salt layer, an ion selecting layer positioned on or in the substrate, ... | 05/14/1985 |
| 4514164 | Reduction gear system for twin screw extruding system In a twin screw extruding machine, a reduction gear system comprises a casing, an input shaft and two output shafts supported by said casing, each in alignment with a respective one of said screws. A respective first pinion is fitted to each output shaft,... | 04/30/1985 |
| 4512911 | Phosphor A rare earth element activated complex halide phosphor represented by the formula wherein X is at least one halogen selected from the group consisting of Cl, Br and I, MeI is at least one alkali metal selected from the group consisting of Li an... | 04/23/1985 |
| 4510987 | Method and apparatus for casting metal alloys in the thixotropic state Equipment (3) for centrifugal casting from a crucible (5) into a mold (8) is modified by the addition of agitation means (19) movable relative to the crucible (5) and a heating furnace (30) which is movable relative to the mold (8) in order to heat the la... | 04/16/1985 |
| 4511095 | Method and apparatus for winding glass fibers An apparatus for winding strand of glass fiber filaments is disclosed. The apparatus comprises at least one takeup collet on which a strand of glass fiber filaments is wound, a guiding mechanism for guiding an end portion of the strand which has started b... | 04/16/1985 |
| 4511129 | Quarter-window structure for vehicle A quarter-window for a vehicle is hinged to the center pillar of the vehicle by way of a hinge. The center pillar is provided with a holder having a hinge receiving opening and welded to the center pillar. The hinge is inserted into the hinge receiving op... | 04/16/1985 |
| 4511802 | Radiation image storage panel A radiation image storage panel comprises a substrate and a stimulable phosphor layer provided on the substrate. At least a part of the edges of end faces of the radiation image storage panel on the substrate side is chamfered. At least the end face of th... | 04/16/1985 |
| 4510388 | Radiation image storage panel A radiation image storage panel comprising a substrate, a fluorescent layer provided on the substrate and composed of a binder and a stimulable phosphor dispersed therein, and a protective layer provided on the fluorescent layer. The panel is edge-reinfor... | 04/09/1985 |
| 4510414 | Electron excited fluorescent display device including screen with rare earth phosphor exhibiting sublinear current density-emission luminance characteristics A rear earth yellow to red emitting phosphor exhibiting the sublinear characteristics when the current density of an excitation electron beam is increased. The phosphor is represented by the general formula: in which Ln is at least one of yttrium, gadolinium, ... | 04/09/1985 |
| 4508076 | Idling speeding control system for internal combustion engine The idling speed of an internal combustion engine is controlled by controlling the position of a control valve disposed in the intake system of the engine to control the amount of intake air fed to the engine. A desired idling speed is determined accordin... | 04/02/1985 |
| 4508636 | Radiation image storage panel A radiation image storage panel comprising a substrate and a fluorescent layer provided thereon and consisting essentially of a binder and a stimulable phosphor dispersed therein. The binder comprises linear polyester resin or linear polyester resin cross... | 04/02/1985 |
| 4505950 | Method of manufacturing a multiple-layer, non-single-crystalline semiconductor on a substrate A process for producing multi-layer semiconductor devices wherein a plurality of Plasma deposition chambers, an entrance and an exit chamber are provided sequentially with shutter means between them. A different layer is laid down in each chamber on a sub... | 03/19/1985 |
| 4505989 | Phosphor and radiation image storage panel employing the same A divalent europium activated alkaline earth metal fluorohalide phosphor containing a transition metal as a coacitivator and a sodium halide, having the formula (I): in which MII is at least one alkaline earth metal selected from the group cons... | 03/19/1985 |
| 4503134 | Method of modifying surface of colored micro-filter element A method of modifying a surface of a colored micro-filter element for a color imaging device, which comprises; hardening the surface of the colored micro-filter element formed on an image sensing surface of an imaging device or on a transparent support to ... | 03/05/1985 |
| 4501796 | Radiographic intensifying screen A radiographic intensifying screen comprising a support and at least one phosphor layer provided thereonto which comprises a binder and a phosphor dispersed therein, wherein the support is a resin film containing a white pigment.... | 02/26/1985 |
