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| Number | Title | Issue Date |
| 4955832 | Vehicle propulsion system A propulsion unit comprises an elongated chamber having a front closed end and a rear open end with a side opening having a decreasing cross section inwardly of the chamber and directing incoming fluid tangentially of curved internal chamber walls for imp... | 09/11/1990 |
| 4953334 | Economy building panel A low cost insulating panel for covering walls of existing structures has an expanded cellular core having complementary stepped side edges of differing width to define depressions in a combination of two panels. The panel has thin flat reinforcing strips... | 09/04/1990 |
| 4923164 | Post support and anchor Four orthagonally oriented rigid blades are fixed together along a side of each and taper to a common pointed bottom with a rigid top plate affixed across the top of the blades and a steel tube extends upwardly from the plate to receive and support a post... | 05/08/1990 |
| 4874346 | Free flying magnetic levitator A free flying magnetic levitator that is self stabilized and fully maneuverable for magnetic structure establishing an odd number of poles for interaction with another magnetic field having an even number of poles to produce linear motion instead of rotat... | 10/17/1989 |
| 4850784 | Cross flow multilevel parking system In an automated multilevel rotary parking system double flow through vehicle paths including endless conveyors and elevators together with rotary parking platforms maximize vehicle handling capabilities. Vehicle flow paths are particularly arranged to fac... | 07/25/1989 |
| 4823711 | Thermal decomposition processor and system A system for thermally decomposing chemical materials efficiently and controllably heats input feed materials to very high temperatures for decomposition in the presence or absence of oxygen by heating means that may be disposed peripherally or intermedia... | 04/25/1989 |
| 4789091 | Upholstery button driver A tufting machine feeds upholstered female and male button parts into drive mechanisms above and below a central table for receiving a cushion to be tufted. A retractable needle drive assembly forms an aperture through a cushion on the table along a drive... | 12/06/1988 |
| 4784252 | Double door front locking newspaper vending machine An enclosed newspaper vending machine has a double front door with a paper access door mounted in a security door carrying coin actuated release mechanism for the paper access door and a key operated pin lock fits within a surrounding guard on the front o... | 11/15/1988 |
| 4771509 | Multiple strap poultry leg retainer A unitary limitedly flexible retainer for the legs of eviscerated poultry has multiple straps for engaging the creases in the poultry hocks together with an improved lower strap, together with a locking tab provides for positive locking of poultry legs of... | 09/20/1988 |
| 4768310 | Sander attachment A removable sander attachment is formed as a flat plate with upstanding sides and a limited length for fitting under the forward portion of a belt of sandpaper or the like on a portable vibrating or oscillating sander with the sides of the attachment enga... | 09/06/1988 |
| 4748931 | Umbrella top timer A poultry or meat cooking timer has a hollow barrel with an open top slidably receiving a stem with an inner end immersed in a fusible holding material in the barrel to normally hold the stem within the barrel against the force of a spring in the barrel u... | 06/07/1988 |
| 4739538 | Positive locking poultry leg retainer The present invention provides a unitary flexible retainer for holding the legs of eviscerated poultry tightly against the body of the fowl over the rear body opening and includes a central locking member cooperating with straps for positively securing th... | 04/26/1988 |
| 4720672 | Testability system A system for enhancing the testability of functional electronic circuitry may be provided as a separate device or incorporated in circuits and includes serial or parallel control point input data capability applied through tri-statable output drivers to i... | 01/19/1988 |
| 4688495 | Hazardous waste reactor system A thermal decomposition reactor accepts solid, liquid or gaseous waste products of industrial processes or the like and rapidly reduces same to substances such as carbon dioxide, water and glassified non-leachable ash without limitation by materials that ... | 08/25/1987 |
| 4676365 | Motor driven endless tray accumulator An endless train of dollies with means for continuously moving them in an oval path and in either direction, each dolly supporting a tray rack that in turn can removably support a plurality of trays in stacked relation. Bus boys load trays of soiled dishe... | 06/30/1987 |
| 4653718 | Molding structure for supporting preform inserts An improved molding structure for producing a building panel or the like of expanded cellular core material having reinforcing strips flush with surfaces thereof and including one or more indentations or depressions having reinforcing elements extending t... | 03/31/1987 |
| 4653146 | Basket poultry leg retainer A poultry leg retainer formed of resiliently deformable material has a bottom cross beam with upturned ends for lodgement in the kidney openings of poultry and resiliently extensible legs extending upwardly from the beam to a three dimensional basket conf... | 03/31/1987 |
| 4615075 | Poultry leg retainer The present invention provides an integral retainer for trussing the legs of eviscerated poultry including an upper bridle portion of resiliently deflectable strips adapted to fit about and across the hocks of poultry legs and connected by resiliently ext... | 10/07/1986 |
| 4608799 | Building block system Hollow blocks formed of corrugated cardboard, for example, have top edge openings receiving inverted U-shaped connectors for joining successive blocks together in a row or course and end slots together with top center slots receiving T-shaped connectors t... | 09/02/1986 |
| 4599823 | Flea catcher A flea catcher having a housing with an open front and a guard is disclosed. The housing has a fine toothed comb extending forwardly from the bottom thereof with a cylindrical brush mounted for rotation atop the comb ahead of a soft absorbent material suc... | 07/15/1986 |
| 4520701 | Tool holder for lathe A clamping block adapted to be mounted for adjustable translation and rotation upon a lathe has tool holding elements slidably engaging the block by a key and keyway with a slot in the block defining a limitedly pivotable portion operated by a threaded bo... | 06/04/1985 |
| 4453328 | Bumper sticker holder A bumper sticker holder for automobiles and the like has a mounting element adapted for attachment to a bumper by adhesive and mounting a holder element in adjustable pivotal position for receiving and retaining bumper sticker or signs with a transparent ... | 06/12/1984 |
| 4443154 | Windmill tower shadow eliminator In a wind driven propeller system an airfoil support for the shaft of a propeller having an even number of blades extends above and below the shaft a distance at least equal to the blade length and pivots with the propeller into the wind for substantially... | 04/17/1984 |
| 4431015 | Glass washer and sterilizer A small washer and sterilizer for glasses has a counterweighted door with a watertight seal without gaskets, a novel overhead spray unit particularly adapted for under bar installation and an improved drainage system.... | 02/14/1984 |
| 4421053 | Two-stage pop up thermometer A disposable cooking thermometer has a hollow barrel with a neck therein containing a stem that is spring loaded to move out of an open upper end of the barrel and is held within the barrel by a fusable material about an inner stem end in spaced relation ... | 12/20/1983 |
| 4399552 | Crosstable X-ray cassette holder An X-ray film cassette holder has adjustable end retaining means pivotally mounted on an end of a pivotally adjustable link that is adapted for clamping by a bottom plate and adjustable clamping plate to an edge of an X-ray table for positioning X-ray fil... | 08/16/1983 |
| 4389736 | Tool belt suspenders Suspenders formed of a strong non-stretch material have an adjustably positioned strap crossover with an aperture therein and high strength clasps removably attached to and adjustably positioned upon at least rear strap ends for comfortably hanging a tool... | 06/28/1983 |
| 4369806 | Vacuum breaker and mixing chamber A mixing chamber has a water inlet and chemical inlet with a depending discharge merging into a duct having an air vent separated from the chamber by an inclined chamber floor.... | 01/25/1983 |
| 4366626 | Ruling device for the blind A board has indexed tracks along each side with parallel transverse bars having end feet riding in the tracks and a marker being laterally adjustable between successive like separated positions along the bars for setting a marking position on a sheet of p... | 01/04/1983 |
| 4365448 | Sanding wheel An improved abrasive structure and holder for sanding or the like has a continuous strip of sandpaper or emery cloth folded and secured together to form a circle with radial flaps or fingers extending therefrom and may have a circular stiffener all for co... | 12/28/1982 |
| 4354723 | Electric plug An electric plug having a threaded top cap has an internal spring loaded ratchet pin extending into engagement with tapered teeth about the inside of the cap and a manual pin retracting element on the outside of the plug body for removably locking the cap... | 10/19/1982 |
| 4349197 | Matching game A game of identification of shapes and identities particularly adapted for blind children has a rotatable housing with cutouts and pegs on exterior surfaces thereof within and upon which a player places matching pieces from a large plurality of pieces ada... | 09/14/1982 |
| 4333014 | Crosstable X-ray cassette holder An X-ray film cassette holder has adjustable end retaining means pivotally mounted on an end of a pivotally adjustable link that is adapted for mounting in a track along one side of an X-ray table for positioning X-ray film for different varieties of cros... | 06/01/1982 |
| 4331242 | Record storage system A storage system for phonograph records and the like which may be totally enclosed has a plurality of vertically spaced double link arms with each mounting a support disc having an upright record retaining shaft thereon whereby groups of closely spaced re... | 05/25/1982 |
| 4318232 | Heel structure for shoes The heel of a shoe is formed with replaceable inserts or knobs that may be formed of material that is the same as or different from the material of the heel and the manner of mounting is such that a user may readily replace the inserts to prevent or limit... | 03/09/1982 |
| 4318416 | Lighter with integral pipe tamper A lighter for pipes and the like has a case thereof formed with a deep indentation extending upwardly from the bottom in spaced relation to one vertical side to form an integral pipe tamper structure and an insert containing wadding or the like for absorb... | 03/09/1982 |
| 4317514 | Tray lock conveyor for dishwashing machines An improved peg structure of an endless belt conveyor grips trays to prevent dislodgement during high speed passage through washing and rinsing stations as in a flight dishwashing system.... | 03/02/1982 |
| 4315303 | DC Converter A small and inexpensive converter unit produces regulated multi-level low voltage DC power from a widely fluctuating high voltage DC input with short circuit protection and low current drain under no load conditions.... | 02/09/1982 |
| 4313610 | Carriage for roller skates An improved truck or undercarriage for a skate and adapted for injection molding has an elongated plastic body and a pair of traverse plastic axle elements with grooved projections through which mounting bolts extend to flexibly clamp the elements against... | 02/02/1982 |
| 4312471 | Foot powered tufting machine A machine for inserting quilting or tufting buttons of the type shown in U.S. Pat. No. 3,701,174, has male and female button drive mechanisms similar to those shown in U.S. Pat. No. 4,059,889, driven by a foot powered lever arrangement for rapidly tufting... | 01/26/1982 |
