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| Number | Title | Issue Date |
| 6814045 | Rotary internal combustion engine There is provided a rotary internal combustion engine (20) comprising a plurality of rotors (21) each having a plurality of lobes (22) for intermeshing with lobes of other rotors to form successive combustion chambers. Axial seal elements (60... | 11/09/2004 |
| 5690167 | Inner ribbed tube of hard metal and method A heat exchanger inner spiral-ribbed tube made of a hard metal such as stainless steel, titanium, or an iron-nickel alloy, and method of manufacture therefor for use in making a heat exchanger. The tube has an annular wall having an inner ribbed surface a... | 11/25/1997 |
| 5688136 | Fire fighting trainer A fire fighting trainer is provided for use in training fire fighters and passenger rescuers during aircraft simulated cabin fires and simulated landing gear fires and during simulated oil spill module fires. The trainer includes a mockup aircraft, a mock... | 11/18/1997 |
| 5518403 | Rollover fire fighting trainer A fire fighting trainer for use in training fire fighters about a ceiling rollover fire. This trainer includes a chamber with a ceiling and includes a burner head subassembly and includes a burner control subassembly. The burner head subassembly has a fue... | 05/21/1996 |
| 5464208 | Programmable baseball pitching apparatus The invention relates to a ball pitching machine having a ball feed means for feeding balls to a feeding point where they will be acted upon by rotating drive wheels, a plurality of at least two drive wheels having planes and axes of rotation, said axes o... | 11/07/1995 |
| 5414964 | Flashing for buildings A flashing product (10) being an elongated flashing strip (20) made of resilient material having a member or members (21) attached to one marginal edge portion (22) of the flashing strip and extending in the direction of elongation thereof. The member or ... | 05/16/1995 |
| 5411640 | Centrifugal distillation apparatus The disclosed invention is an apparatus for the distillation of liquids. The apparatus has a plurality of vertically-stacked, parallel disks which are rotated. The liquid to be distilled is introduced into the center of the disk stack and migrates by cent... | 05/02/1995 |
| 5411397 | Aircraft fire fighting trainer having a mixture of liquid and aggregate particles as a fuel diffuser A fire fighting trainer for use in training fire fighters to extinguish jet crash fuel fires and the like, the trainer includes a supply pipe and control valve, a distribution pipe with holes, an open tank with a diffuser being a mixture of water and grav... | 05/02/1995 |
| 5367603 | Smoke generator for firefighting trainers utilizing a metering venturi A smoke generator wherein vaporative properties of a liquid smoke agent are activated by a heated air flow through a venturi with the vacuum created in the metering venturi controlling the flow of smoke producing liquid to the heated air. The smoke genera... | 11/22/1994 |
| 5346475 | Single use syringe A single-use syringe for covering its needle after injection of a medical preparation. The syringe has a barrel and has a non-reversible shield for covering the needle. The shield has an inclined interior shield tooth of resilient material, and the barrel... | 09/13/1994 |
| 5345830 | Fire fighting trainer and apparatus including a temperature sensor A fire fighting trainer for use in training fire fighters is provided. The fire fighting trainer includes a structure having a plurality of chambers having concrete or grating floors. Each chamber contains one or a series of real or simulated items, which... | 09/13/1994 |
| 5335559 | Fire fighting trainer and apparatus A fire fighting trainer for use in training fire fighters is provided. The fire fighting trainer includes a structure having a plurality of chambers having concrete or grating floors. Each chamber contains one or a series of real or simulated items, which... | 08/09/1994 |
| 5336209 | Multi-function wound protection bandage and medicant delivery system with simultaneous variable oxygenation A protective wound bandage which allows for the body's natural epitheliazation process to be enhanced by the function of said bandage in the following ways. A non-stick surface is provided to make contact with the wound. An absorbent pad is provided for b... | 08/09/1994 |
| 5327985 | Acoustical transducer enclosure The present invention relates to an acoustical transducer enclosure which is particularly adapted for directing sound waves and is housed in a multisided enclosure. The enclosure has a cylindrical hollow tube, held in position by a pair of forward baffles... | 07/12/1994 |
| 5328375 | Fire fighting trainer and apparatus including a flame generating means A fire fighting trainer for use in training fire fighters is provided. The fire fighting trainer includes a structure having a plurality of chambers having concrete or grating floors. Each chamber contains one or a series of real or simulated items, which... | 07/12/1994 |
| 5320536 | Fire fighting trainer and apparatus including smoke generating means A fire fighting trainer for use in training fire fighters is provided. The fire fighting trainer includes a structure having a plurality of chambers having concrete or grating floors. Each chamber contains one or a series of real or simulated items, which... | 06/14/1994 |
| 5317845 | Flashing for buildings A flashing product being an elongated flashing strip made of resilient material having a member or members attached to one marginal edge portion of the flashing strip and extending in the direction of elongation thereof. The member or members each being a... | 06/07/1994 |
| 5315869 | Gas meter assembly A gas meter assembly having a universal type connector subassembly. This gas meter assembly includes a gas meter, inlet piping, outlet piping, and a connector unit which has a U-shaped inlet pipe, a Z-shaped outlet pipe, and a strut fixedly connected to t... | 05/31/1994 |
| 5289689 | Environmentally friendly histological tissue freezing process histological tissue freezing process is provided. The process includes spraying a chemical, tetrafluoroethane, onto a portion of a histological tissue specimen before sectioning thereof. The use of tetrafluoroethane has the advantages of not causing ozone... | 03/01/1994 |
| 5284044 | Wire joining device A hydraulic wire joining device for connecting at least two wires. The device includes a hydraulic cylinder for clamping a wedge or spacer over at least two wires, and a work fixture for transmitting an cylinder force to the wedge. The cylinder is a two-s... | 02/08/1994 |
| 5275571 | Portable fire trainer A portable fire trainer for use in training by an instructor of a company employee in the use of a fire extinguisher for extinguishing a Class A trash can paper fire or a Class B spilled combustible liquid fire or a Class C electrical panel fire. The trai... | 01/04/1994 |
| 5266033 | Fire fighting trainer having foam detector A fire fighting trainer for use in training fire fighters is provided. The fire fighting trainer includes a structure having one or more chambers. Each chamber contains real or simulated items, which are chosen from a group of items, such as furniture and... | 11/30/1993 |
| 5233869 | Fire fighting trainer and apparatus including a water sensor A fire fighting trainer for use in training fire fighters is provided. The fire fighting trainer includes a structure having one or more chambers having concrete or grating floors. Each chamber contains one or a series of real or simulated items such as f... | 08/10/1993 |
| 5232598 | Porous inorganic membranes A composite membrane for microfiltration comprises a woven metal mesh support and films bridging the interstices comprising inorganic particles, e.g. zirconia, bonded together by 1-25% of an inorganic adhesive. Group IV metal e.g. Si or Zr phosphate adhes... | 08/03/1993 |
| 5228906 | Moistening agent for offset printing plates A moistening agent and method for its use in offset printing plates is described. The agent contains a low molecular weight cationic protein as a water soluble, major component.... | 07/20/1993 |
| 5224227 | Attachment for elevating the legs of a bed An elevator stand for a bed leg for tilting the bed for use by a person with various conditions. The stand has a base portion for resting on a floor surface, and has an upper receiving portion which has a top surface recess with a bottom bearing surface a... | 07/06/1993 |
| 5219374 | Inner ribbed tube and method A heat exchanger inner spiral ribbed tube and method of manufacture therefor for use in making a refrigerator condenser or a refrigerator evaporator. The tube has an annular wall having an inner surface. The inner surface has a plurality of inner spiral r... | 06/15/1993 |
| 5203707 | Modular fire trainer A modular fire fighter trainer for use in training fire fighters. This trainer includes at least one training subassembly or module having a training room with one or more simulated burnable items and having an equipment room with a burner control and a s... | 04/20/1993 |
| 5192209 | Color demonstrator A demonstrator for demonstrating color combinations of the colors of the background and the lettering of a design. This demonstrator includes a support board, a background sheet resting on the board and having a plurality of spaced identical but different... | 03/09/1993 |
| 5056538 | Hair coloring device and method A hair coloring device and method are provided. The device includes a plurality of foldable, clear, plastic strips, each having a center portion and a left portion and a right portion. The left and right portions are folded over to form a passage therethr... | 10/15/1991 |
| 5055050 | Fire fighting trainer A fire fighting trainer for use in training fire fighters to extinguish jet crash fuel fires and the like, the trainer includes a supply pipe and control valve, a distribution pipe with holes, an open water tank with water within which the distribution pi... | 10/08/1991 |
| 5052933 | Fire fighter trainer A fire fighter trainer device and method for use in training fire fighters in the extinguishment of a simulated crashed-air craft fuel-spill fire. The trainer includes a pit structure, a fuel distribution system, a burner control system connected to a com... | 10/01/1991 |
| 5051290 | Fire barrier blanket A fire barrier blanket for a splice portion of an electrical cable or conduit is provided. The blanket includes an elongate center portion having an elongate axis and axially spaced end portions connected to the cable and axially spaced clamp units such a... | 09/24/1991 |
| 5046337 | Clothes washer and dry cleaner A clothes washer or dry cleaning machine which can be side-loaded or top-loaded. The washer includes an outer casing having an axis, an inner perforated drum rotatable about an axis relative to the outer casing axis, a middle cylinder portion disposed rad... | 09/10/1991 |
| 4983124 | Fire fighting trainer A fire fighting trainer for use in training fire fighters is provided. The fire fighting trainer includes a structure having a plurality of chambers having concrete or grating floors. Each chamber contains one or a series of real or simulated items, which... | 01/08/1991 |
| 4941222 | Portable lounge This invention relates to a portable lounge with body supports which are adjustable to conform with body frames of different girths and heights. It is ergonomically correct to alleviate stress on the lower back, head, neck and legs by reducing pressure wh... | 07/17/1990 |
| 4924715 | Contact sensing system A contract sensing system is provided for a coordinate measuring machine which is manually operated. The system provides a control over the level of the sensing force of a work piece against a probe of the machine. The system also provides an instantaneou... | 05/15/1990 |
| 4867977 | Calcium salts A solid stable sugar free and sodium free calcium pharmaceutical composition is disclosed comprising a calcium organic salt, calcium carbonate and an organic polycarboxylic acid.... | 09/19/1989 |
| 4861270 | Fire fighting trainer A fire fighting trainer for use in training fire fighters is provided. The fire fighting trainer includes a structure having a plurality of chambers. Each chamber contains real or simulated items, which are chosen from a group of items, such as furniture ... | 08/29/1989 |
| 4487451 | Sleeper seat A vehicle seat especially adapted for use in a camper, pick-up truck or the like which has a seat back which can be fully reclined to the horizontal position. The seat includes a sleeping compartment arrangement which is attached to the seat for use as a ... | 12/11/1984 |
