Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 5095921 | Flavor generating article An article is provided in which a flavor generating medium is electrically heated to combustion to evolve inhalable flavors or other components in vapor and/or aerosol form. The article has a plurality of charges of the flavor generating medium which are ... | 03/17/1992 |
| 5093894 | Electrically-powered linear heating element A heating element for use within a smoking device which is intended to be held in the lips of a consumer, and which without burning, heats a flavor-generating medium within the device to produce an aerosol, vapor, or flavor, which the consumer may inhale.... | 03/03/1992 |
| 5040674 | Cigarette pack display container A cigarette pack display container is disclosed. The container includes a cover member and a base member which are connected about a rim. The cover member has outwardly extending pockets. Between the pockets is a corner wall including a polygonal panel po... | 08/20/1991 |
| 4799584 | Drive mechanism for bucket elevators A bucket type elevator having a head pulley and a boot pulley with a belt entrained about both pulleys is hydraulically driven. The drive mechanism comprises a hydraulic motor mounted in the boot pulley. It is connected, via flexible hydraulic lines, to a... | 01/24/1989 |
| 4758827 | Duct smoke detector Apparatus for sensing smoke in a duct includes a housing with inlet and outlet ports and a flow chamber which directs gas flow on a path between the ports and to and from a smoke detector. A vaned rotor on the path is visible through a window in the housi... | 07/19/1988 |
| 4681571 | Suction canister with disposable liner and check valve A medical fluid suction canister and method of use are disclosed. Suction is drawn on a liner within the canister through a check valve, preferably a duckbill check valve and, as a result, fluid from a patient flows into the liner. The check valve prevent... | 07/21/1987 |
| 4667913 | Device for suspending objects An adjustable device for supporting objects, consisting of a clip means made from a single piece of resilient material and a suspending means made from a single piece of flexible material. The clip means comprises a mobile spring clip whose lower portion ... | 05/26/1987 |
| 4664588 | Apparatus and method for connecting and exchanging remote manipulable elements to a central control source An exchange system is provided for connecting a remote, manipulable element, such as a robot arm tool gripper, to a central control source, such as a robot arm and its associated programmable control. An upper exchange unit attaches to the robot arm and r... | 05/12/1987 |
| 4602769 | Apparatus for the cooling of articles which have been subjected to an isostatic pressing process Apparatus for the cooling of articles which have been subjected to an isostatic pressing process is provided. The apparatus includes an injector system which is connected with a fresh gas supply conduit, and with passages along which the gases are drawn f... | 07/29/1986 |
| 4545255 | Low pressure transducer A transducer is provided for measuring very low pressures, on the order of 1.5 inches of water. A fluid-tight elastomeric barrier formed with convolutions to allow relatively large linear deflections is bonded to stiff sensing element of minimum mass, the... | 10/08/1985 |
| 4535950 | Method and apparatus for roll winding measurement A method and apparatus for continuously measuring the compressive strain and determining the compressive pressure on rolls of flexible material as they are being wound and for measuring the accumulated length of material wound on the roll. An accurate mea... | 08/20/1985 |
| 4504480 | Pentacyclic compounds Compounds of formula (I), ##STR1## or an N-oxide or pharmaceutically acceptable salt thereof, wherein R1 is hydrogen, C1-7 alkyl, C3-7 cycloalkyl, C4-7 cycloalkenyl or C1-4 alkyl substituted by C... | 03/12/1985 |
| 4459582 | Local control apparatus for central station alarm system In a central station alarm system the alarm sensors associated with a particular subscriber's premises are monitored by a local control unit associated with those premises and controllable by the subscriber. The local control unit automatically reminds th... | 07/10/1984 |
| 4427974 | Local control apparatus for central station alarm system In a central station alarm system the alarm sensors associated with a particular subscriber's premises are monitored by a local control unit associated with those premises and controllable by the subscriber. The local control unit automatically reminds th... | 01/24/1984 |
| 4417931 | Wet compaction of low density air laid webs after binder application In the manufacture of low density air laid webs of predominantly ligno-cellulosic material, the method and apparatus for bonding the dry web with binder and compacting the web with a wet, fabric covered surface so as to increase tensile strength and delam... | 11/29/1983 |
| 4317452 | Body fluid drain A flexible body fluid drain tube has substantially flat cross section with a pair of parallel longitudinal internal ribs along one substantially flat wall which are spaced apart a distance greater than their respective distances from the adjacent edges of... | 03/02/1982 |
| 4303356 | Deburring tool A tool and method for deburring the edge of a hole through a plate, pipe, duct, or similar workpiece. The edge to be deburred is the edge away from the operator of the tool, e.g., the edge on the far side of the plate or on the inside of the pipe or duct.... | 12/01/1981 |
| 4227534 | Self-inflating urinary catheter A self-inflating urinary catheter which includes a retention balloon has a fluid-filled, unpressurized, deformable reservoir communicating with the balloon. An elastic diaphragm is arranged to squeeze the reservoir against another surface so as to pressur... | 10/14/1980 |
| 4162617 | Pulsed crystallizer with strips of reduced heat exchange Selected chemical species in fluid media such as solutions, mixtures of liquids, and suspensions are crystallized by indirect cooling of the fluid media. Crystals are prevented from sticking to the heat exchange surface by pulsating the fluid with a compo... | 07/31/1979 |
| 4118098 | Connector for reed switches An improved electrical connector for reed switches and other similarly configured switches, in which the electrical leads projecting from the ends of the switch are clamped to a connector base by screw-driven terminal clamping plates, thereby establishing... | 10/03/1978 |
| 4093100 | Pressure vessel construction and method A pressure vessel with an alloyed steel wall and having at least one ring of weldable steel secured thereon and wherein a temperature control jacket associated with said vessel is welded to said ring.... | 06/06/1978 |
| 4053100 | Shipping carton A shipping carton for storage and transport of produce under cold and humid conditions comprising a tray and a cover. The tray has stacking tabs extending upwardly from its top corners and is formed by bottom, end, and side panels secured together by flap... | 10/11/1977 |
| 4053098 | Shipping carton A shipping carton for storage and/or transport of produce under cold and/or humid conditions comprising an erected body wrap and end wall pieces positioned at opposite ends of the body wrap. The end wall pieces are impregnated with a moisture resistant ag... | 10/11/1977 |
| 4040526 | Dunnage bag An improved weatherproof dunnage bag for use in an open freight transport vehicle is provided. The bag includes an air bladder for expanding the bag and a plurality of air bladder reinforcing sheets enclosing the bladder. The outermost sheet is coated wit... | 08/09/1977 |
| 4013394 | Hot isostatic press system The invention relates to means for establishing an equalized pressure across the insulating sheath of a hot isostatic press system. Tubes are positioned in the outer, insulation portion of the sheath to provide a substantially resistance free passage betw... | 03/22/1977 |
| 4011430 | Multizone electrical furnace methods and apparatus In a multizone electrical furnace the phase shift effect of the thyristor devices used to control the power supplied to each thermal zone is reduced by providing two or more heater circuits, each including a thyristor device and a heating element, for eac... | 03/08/1977 |
| 3972488 | Expandable chuck An expandable chuck for rotatably supporting a longitudinal roll, such as a tissue supply roll for a folding machine, having a hollow cylindrical core. Pneumatically inflatable tube members are mounted on spaced wheel members, which are in turn mounted on... | 08/03/1976 |
