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Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 5347884 | Method and apparatus for cancellation of rotational unbalance A device (19) for generating a rotating force vector and an oscillatory couple includes a plurality of non-concentric eccentric masses (22A, 22B, 22C, 22D, 22E, 22F) co-rotating at the same angular speed; and means (24A, 24B, 24C, 24D, 24E, 24F) for indiv... | 09/20/1994 |
| 5337639 | Outfeed lifter ramp for blanking boxes and other die-cut paper products The present invention contemplates an outfeed lift ramp (24) for use with a male (19) and female (18) combination of blanking dies for separating a diecut paper box blank (21) from an attendant web portion (20). Outfeed lift ramp (24) is appended to the l... | 08/16/1994 |
| 5330155 | Pressure-loaded cylinder valve insert A valve insert (40) is adapted to be removably mounted as a unit on a cylinder valve (41) to selectively enable a flow of fluid therethrough when a male coupling section (52) is inserted into the outlet of the cylinder valve. The improved insert includes ... | 07/19/1994 |
| 5328422 | Ladder-climbing exercise device A ladder-climbing exercise device (10) includes an inclined flight (13) along which a plurality of rungs (29) are presented in an endless manner. The marginal ends of the rungs are mounted on endless chains which are supported by a frame. The chains are c... | 07/12/1994 |
| 5309713 | Compressed gas engine and method of operating same A compressed gas engine (20) has a piston (25) mounted for reciprocating movement within a cylinder (22). A valve (29) is slideably mounted on the cylinder head (31) to control the flow of compressed gas from a source (24) through an inlet (23) to a plenu... | 05/10/1994 |
| 5290063 | Hand grip construction for a ski pole or the like An improved handle (14) for a walking stick or ski pole additionally serves as a vehicle for advertising. The improved handle has an inner part (26) and an outer part (28). The two parts are formed of different materials. Portions (18,20,22,24) of the inn... | 03/01/1994 |
| 5288981 | Method and apparatus for encoding machine readable serial encryptedmagnetic data The present invention provides a method and apparatus for encoding and detecting data from magnetically encoded access cards. The invention includes a control unit (1) having an access card slot (4) communicating with a microprocessor (11) and sensor (3).... | 02/22/1994 |
| 5272340 | Infrared imaging system for simultaneous generation of temperature, emissivity and fluorescence images The present invention comprises a method and apparatus for determining actual temperature, reflectivity and fluorescence of a surface and comprises in the preferred embodiment a two-dimensional focal plane array of rapidly tunable infrared detectors, 11, ... | 12/21/1993 |
| 5269758 | Intravascular catheter and method for treatment of hypothermia An improved intravascular device (20) is adapted for use in treating hypothermia in a patient. The improved device includes an elongated flexible catheter (21) having a distal end piece (26) arranged in spaced relation to a catheter main body portion (32)... | 12/14/1993 |
| 5257513 | Ball earring process and construction A process for manufacturing a jewelry piece such as a ball earring pin which includes a predetermined length of the solder-filled wire that serves as both an earring wire post and domed cup for seating and attachment of an ornament, namely, the ball of a ... | 11/02/1993 |
| 5254905 | Cathode-luminescent panel lamp, and method A cathode-luminescent panel lamp (20) includes an evacuated tube (21) having a phosphor coating (25) on the inside surface of a face plate (24). An electron gun (28) is arranged to discharge at least one conical beam of electrons toward the coating to for... | 10/19/1993 |
| 5245274 | Storm monitor A storm monitoring apparatus and method is described wherein two H-field antennas are oriented with respect to the heading axis of an aircraft or the like at an angle of 45°. The signals developed by these two antennas are picked-up by small R-F transfor... | 09/14/1993 |
| 5240041 | Synthesized flow-control servovalve An improved two-stage servovalve (70) has a pilot-stage and an output-stage. A torque motor (16) produces pivotal movement of a flapper (18) in response to a supplied electrical current. The pilot-stage produces a flow which is used to selectively displac... | 08/31/1993 |
| 5201897 | Spring balancer for a roll-up door An improved spring balancer (10) includes a shaft (13) rotatably mounted on a support (11). A first torsional spring (14) acts between the support and the shaft. A second torsional spring (19) acts between the support and a cable drum assembly (63) journa... | 04/13/1993 |
| 5193728 | Unidirectional pinch rollers for a cloth spreading machine An end cutter includes a pair of rollers (64,73) operatively arranged to frictionally engage cloth passing through the nip thereof. One of the rollers is mounted for unidirectional rotation such that the cloth may be pulled forwardly from a roll, but cann... | 03/16/1993 |
| 5163531 | Pivotal ladder A ladder assembly is adapted to be mounted on a suitable support, such as a truck or trailer. The ladder assembly includes a ladder mounted on the distal end of a shaft. The shaft is slidably received in a cylinder. A pair of spaced abutment stops are pro... | 11/17/1992 |
| 5148777 | Method of, and apparatus for, killing marine life in and about the cooling system of a marine vehicle Apparatus for killing marine life, such as zebra mussels, in the cooling system (14) of a boat having a water-cooled internal combustion engine (11) includes a flexible bag-like enclosure (20) which is adapted to be mounted on the boat so as to provide a ... | 09/22/1992 |
| 5140880 | Push-pull apparatus and method for web cutting and trim strip removal An improved device for cutting a single or multiple-layer continuous web is equipped with a closed-loop, fan-driven air system to "push" air onto the leading edge of the continuous web and "pull" air from about the knife edges to capture the waste materia... | 08/25/1992 |
| 5130630 | Mandrel-moving control circuit, and method A control circuit (10) for an extrusion die (13) is operatively arranged to supply a command signal (ec) to an actuator (24,25) for controlling the movement of a mandrel (11) relative to a die head (12) as plasticized material is extruded throu... | 07/14/1992 |
| 5116591 | Method and apparatus for combining fluids A spray combining apparatus for use at the outlet of a fluid collection system (10) includes an outlet pipe (11) containing a diffuser and atomizer (15) adjacent an outlet opening (18). A conical rain cap (19) is mounted vertically above the outlet openin... | 05/26/1992 |
| 5112347 | Embolectomy catheter, and method of operating same An inflatable balloon-type catheter (20) for use in performing an embolectomy, includes an elongated catheter (21) having a distal end (22) adapted to be inserted through an incision into a patient's blood vessel (V). A plurality of fingers (24) having fi... | 05/12/1992 |
| 5110047 | Vane-type nozzle(s) for varying the magnitude and direction of a thrust vector, and methods of operating same An adjustable converging-diverging nozzle (10) includes a body (11) having a flow passageway (14) therethrough. The passageway is configured to define an entrance section (18), a narrowed throat section (19), and an exit section (20). Two opposing vane me... | 05/05/1992 |
| 5105773 | Method and apparatus for enhancing combustion in an internal combustion engine through electrolysis The present invention 10 comprises a hollow main canister 11 having a series of anodes 25 and cathodes 29 interposed therein for the electrolysis of an electrolytic fluid F, such as potassium hydroxide. The electrolytic reaction is powered through the use... | 04/21/1992 |
| 5103703 | Web severing apparatus and method Sheet cutting apparatus for severing a rapidly-moving web, such as printed paper, into cut sheets in two stages. In the first stage, spaced cuts are made along a transverse cutting line of the web. The web is trained between belts which support the cut po... | 04/14/1992 |
| 5100278 | Railroad locomotive crane boom apparatus An improved locomotive crane boom generally indicated at 10 has of a first member 11, second member 12, and third member 13 each pivotally connected at various pivot points to one another and to locomotive crane 14. A series of pistons and cylinders, 19, ... | 03/31/1992 |
| 5069679 | Method and apparatus for removing venous valves An improved valvulectome (10) is adapted for use in selectively excising the leaflets of a venous valve. The apparatus includes an elongated probe (11) having one tip end portion (12) adapted to be inserted generally longitudinally into a vein. An actuati... | 12/03/1991 |
| 5067684 | Vibration-isolating machine mount A vibration isolator is operatively associated with a suspension having a spring (21) and a fluid damper (22) arranged in parallel with one another between two masses (23, 24) which are arranged to move relatively toward and away from one another. A restr... | 11/26/1991 |
| 5065037 | Corrosion resistant refractive and adsorptive type optical liquid level sensors Two types of optical liquid level sensor are disclosed. In the first refractive-type (20,65), light is selectively refracted by the particular fluid(s) in a plug recess between primary and secondary detectors (D1,D2). The output sign... | 11/12/1991 |
| 5063713 | Surface abrading and particle collection device A device for abrading road markings along a road surface and for collecting the particulate therefrom. The device includes a frame 11 to which is appended a series of independently controllable abrading devices 18A-D capable of independent actuation by an... | 11/12/1991 |
| 5042707 | Intravascular stapler, and method of operating same An articulatable stapler (20) is arranged in the form of an elongated catheter having a plurality of segments (25,26,28) mounted on one end of a catheter main body (24). A stylet (64) is slidably received within the catheter main body and two intermediate... | 08/27/1991 |
| 5042875 | Portable seat assembly A portable seat assembly (10) includes a seat member (16) and a back member (18). The seat member has a forward hook portion (36), and the back member has a rearward hook portion (70). The rearward hook portion includes two spaced L-shaped arms (71,71), c... | 08/27/1991 |
| 5039479 | Silver alloy compositions, and master alloy compositions therefor A silver alloy composition exhibiting the desirable properties of reduced fire scale, reduced porosity, reduced grain size and reduced oxide formation when heated, consists essentially of the following parts by weight: about 89-93.5% silver, about 0.02-2%... | 08/13/1991 |
| 5035702 | Method and apparatus for providing an anastomosis An improved portal-caval shunt (20) includes a male section (25) and a female section (26). A cutter (52) is first inserted through a patient's vena cava and is used to punch or cut an opening between proximate portions of the vena cava and portal vein. T... | 07/30/1991 |
| 5025733 | Railroad support tie replacement device with track locking device A railroad tie replacing device (10) including a support frame (11) on rollers (22) for movement over a series of parallel railroad tracks (28) supported by railroad ties (29). A main piston or cylinder (15) is positioned such that the stroke of the pisto... | 06/25/1991 |
| 5022691 | Side lock for a roll-up door A side lock (20) for a roll-up door (21) mounted on a body includes a keeper (27) mounted on a jamb (23) adjacent an access opening (22). A hook member (28) is pivotally mounted on a panel (25) and is arranged to selectively engage a catch (59) mounted on... | 06/11/1991 |
| 5018933 | Device for transferring an invalid to and from an automobile A device (10) for transferring an invalid includes a beam (11) comprised of two telescopically received tubes (12,13); a track (14), slidably engaged within said beam capable of supporting a rolling trolley (15) and connected winch (16) for providing a ve... | 05/28/1991 |
| 4998022 | Optical liquid level sensor using a polytetrafluoroethylene perfluoroalkoxy material An optical liquid level sensor has an optically-transmissive body (28) provided with a frusto-conical tip end portion (32). When the tip end portion is exposed to air, the angle of incidence (θi) of light at each of three points of reflection ... | 03/05/1991 |
| 4998294 | Opto-electrical power transmission and control system A lase diode light source (21) is arranged to emit light of a desired intensity (I1), which is transmitted via an optical conductor (22). Light exiting the fiber has an intensity (I2), and falls incident on the receiver surface of a photodiode ... | 03/05/1991 |
| 4991639 | Guard members for preventing shifting cargo from intefering with the operation of a roll-up door This invention provides two forms of improved guards for a roll-up door. The first form ( 58 or 59) is intended to prevent shifting cargo from intefering with becoming interlocked with the lowered door. This form has a vertically-elongated guard which is ... | 02/12/1991 |
| 4979871 | Wind turbine An improved vertical axis wind turbine is disclosed. The wind turbine in accordance with one embodiment, does not include a support tower but instead includes a bearing support for mounting a torque tube rotatably connected to blades, the bearing support ... | 12/25/1990 |