Patents Examined by Joseph J. Rolla
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Patent number: 4953758Abstract: A valve for pumping fluid includes a valve body and a valve chamber in the valve body. The valve body has a first end with an entrance passage therethrough. The entrance passage communicates with the chamber to provide a passage for the flow of fluid through the container to the valve chamber. A plunger and a piston are provided. The piston is within the chamber and is connected to the plunger. The piston is moveable in the chamber in response to depression of the plunger. A seat is in the chamber as is a flexible washer. The flexible washer is adjacent to the piston and movable therewith. A biasing spring is provided in the valve body for biasing the washer against the seat. A spout is provided. An exit passage which extends between the spout and the chamber is provided and this exit passage is sealed by the washer when the washer is in the seated position. A normally closed check valve is between the chamber and the entrance passage.Type: GrantFiled: October 24, 1988Date of Patent: September 4, 1990Assignee: Mark-O IndustriesInventor: Vincent Passalacqua
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Patent number: 4953683Abstract: A safe having a safe door which can be locked by means of a permutation lock. To permit the safe to be used by a series of different persons, the permutation lock (5) is equipped with an externally operatable device for resetting the combination, and also is used in conjunction with a coin-operated release mechanism (19).Type: GrantFiled: February 24, 1987Date of Patent: September 4, 1990Assignee: Schulte Schlagbaum AktiengesellschaftInventor: Armin Eisermann
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Patent number: 4954042Abstract: A double telescoping horizontal arm, adapted for use in a robotic palletizer, including an outer member, an intermediate member and an inner member in telescoping relationship to one another. An idler wheel, mounted to the intermediate member, simultaneously engages both the outer member and the inner member so as to rotate in response to movement of the inner member relative to the intermediate member. Rotation of the idler wheel, in turn, drives the intermediate member in the same direction as the inner member thereby resulting in a double telescoping action.Type: GrantFiled: September 12, 1988Date of Patent: September 4, 1990Assignee: FMC CorporationInventors: Kenneth F. Becicka, Neal C. Chamberlain
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Patent number: 4951847Abstract: In twin-chamber compressed gas packs, the collar of a diaphragm which invaginates during motion in the container is secured with its opening region in a fold or in the upper part of the container, in order to provide the required sealing between product chamber and working fluid chamber. The disadvantage of packs of this type is that the use of multi-part containers is mandatory and/or that a support ring incorporated in the diaphragm produces a frictional force which may be large enough to prevent ejection of the feed material because of an insufficient pressure differential between the chambers. These drawbacks are overcome by securing the entire region of the collar to the internal wall of the casing.Type: GrantFiled: December 5, 1988Date of Patent: August 28, 1990Assignee: Swiss Aluminium Ltd.Inventors: Jean Hardt, Erich Hoefling
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Patent number: 4951801Abstract: A mobile articulated conveyor apparatus includes a plurality of modular carriages pivotally interconnected to each other to enable relative articulated movement between adjacent carriages about upstanding pivot axes generally normal to the longitudinal axes of the carriages. Each carriage has a pair of drive wheels intermediate its length, and drive motors are carried by selected ones of the carriages to effect driving rotation of the drive wheels on each carriage. A belt guidance arrangement is interposed between the adjacent ends of each pair of pivotally interconnected carriages and cooperates with idler roller assemblies to guide an endless conveyor belt along the length of the conveyor apparatus. The belt guidance arrangements enable bending of the belt in generally horizontal planes upon relative articulated movement between the carriages while maintaining the belt in predetermined trained relation on the carriages.Type: GrantFiled: January 14, 1988Date of Patent: August 28, 1990Assignee: DM Enterprises Inc.Inventor: Dennis Z. Mraz
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Patent number: 4951934Abstract: The invention relates to a device for stacking flat articles, such as postal items. First guide (9), which form part of a stacker head (7) and which bound a stack of articles (2) already stacked in a stacker bed (1) in a plane of stacking (D), carry out an imposed to-and-fro pulse movement between a rest position (A) and an outermost position (C) transversely to a supply line (3) and in line and level with the stack to make stack space for a short time for an article (2.2) to be stacked, which article is entering at that moment via the supply line (3). The pulse movement can be realized by hanging the first guide (9) on the one hand by way of a first set of parallel leaf springs (17, 18) to a frame part (19, 20, 31, 32) in such a way that they can swing, and on the other hand by coupling them to the driving end (28) of drive (25, 26) carried on bearings in the frame part.Type: GrantFiled: November 16, 1988Date of Patent: August 28, 1990Assignee: Staat der Nederlanden Staatsbedrijf der Posterijen, Telegrafie En TelefonieInventor: Geert J. Prins
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Patent number: 4951841Abstract: There is disclosed a substrate of layers of materials comprising ethylene vinyl alcohol copolymer layers having sandwiched therein between a metal foil layer and a paper layer all suitably adhered to one another. It is also contemplated that the substrate be employed in fabricating a dentifrice tube.Type: GrantFiled: December 28, 1984Date of Patent: August 28, 1990Assignee: Colgate-Palmolive CompanyInventors: Edward A. Tavss, Samuel C. Temin, John Santalucia, David L. Carroll
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Patent number: 4951799Abstract: A method of correcting coin data and an apparatus for inspecting coins in which determination data is formed on the basis of data read out from a permanent memory, and authenticity and determination of coins are determined on the basis of the readout data. At the same time, maximum and minimum values corresponding to physical characteristics of coins are obtained. When the number of stored coins reaches a predetermined number or an operating time reaches a predetermined duration, the maximum and minimum values are updated. When such updating is performed a predetermined number of times, a standard deviation is also updated.Type: GrantFiled: January 31, 1989Date of Patent: August 28, 1990Assignee: Tamura Electric Works, Ltd.Inventor: Osamu Kai
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Patent number: 4949953Abstract: A device for stacking sheets, especially sheets of paper that arrive overlapped. The device has a layoff platform that can be raised and lowered, a separating mechanism that is positioned behind the stack, that can be raised and lowered, and that can be introduced into the vicinity of the top of the stack, especially between the uppermost sheet and the incoming stream of overlapping sheets, two compression jaws that are positioned at different heights at the rear of the stack, that can be raised and lowered, and that can be inserted into gaps created by the separating mechanism, and an auxiliary stacking platform that is positioned at the rear of the stack, that can be raised and lowered, and that can be introduced into the vicinity of the layoff platform immediately below the lower compression jaw. The object is to provide a device that is of particular advantage with respect to design.Type: GrantFiled: November 18, 1988Date of Patent: August 21, 1990Assignee: Jagenberg AktiengesellschaftInventors: Ernst Claassen, Jakob Bodewein, Henning Koss, Rolf Kollan
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Patent number: 4949815Abstract: Movement of the elevator is derived from a linear motor forming a part of the counterweight assembly of the elevator. Overhead guide sheaves carry the ropes which connect the counterweight with the cab. The guide sheaves are mounted laterally of the cab on both sides thereof whereby there are no sheaves directly above and in line with the cab. The cab mount beam connects to the center of gravity of the cab but lies skew to the lateral vertical plane of symmetry of the cab so that the ropes will be offset fore and aft of the guide rails of the cab.Type: GrantFiled: June 8, 1989Date of Patent: August 21, 1990Assignee: Otis Elevator CompanyInventor: Marcel Pavoz
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Patent number: 4949837Abstract: A drive roller unit for driving articles such as freight containers on a conveyor track comprises first and second drive rollers which can be driven in rotation. The drive rollers are arranged in juxtaposed relationship in their axial direction and in the drive position thereof are both in engagement with the bottom of the article to be moved. A motor assembly for driving the drive rollers is coupled thereto by way of a differential transmission. One output of the differential transmission drives one drive roller of the pair while the other output of the differential transmission drives the other drive roller.Type: GrantFiled: July 11, 1989Date of Patent: August 21, 1990Assignee: Bavaria Cargo Technologie GmbHInventor: Thomas Huber
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Patent number: 4949881Abstract: A portable gun-type adhesive discharger operable independent of an external power source. The adhesive discharger includes a main case body for supporting a rigid adhesive stick extending in a longitudinal direction, a hand grip portion for manually holding the main case body, a heating unit disposed in the main case body for melting the adhesive stick, a nozzle portion connected to a front end of the main case body for discharging melted adhesive stick, and a trigger portion disposed at the hand grip portion and connected to the adhesive stick for feeding the adhesive stick toward the nozzle portion. The main case body and the hand grip portion provide an interior space in combination. A gas supply unit having a gas reservoir is provided in the interior space, and catalytically combustible gas is filled in the reservoir. The heating unit includes a catalytic combustion unit disposed in the interior at a position adjacent the adhesive stick.Type: GrantFiled: June 5, 1989Date of Patent: August 21, 1990Assignee: Ryobi Ltd.Inventors: Kazuhiko Watanabe, Tomoya Onodera
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Patent number: 4948013Abstract: Disclosed is a method and apparatus (10) for dispensing powdered pesticide (13). A housing (11) is separated into an upper chamber (12) and lower chamber (51) by a porous media layer (19). The powdered pesticide (13) is contained within the upper chamber (13) and is fluidized when compressed air enters the dispenser from air inlet line (18). The fluidized pesticide is dispensed through adjustable dip tube (26), outlet line (34) and nozzle (36) when a control valve (50) is activated. Only particles having a size smaller than a predetermined size are dispensed; the remaining, relatively large pesticide particles remain in the upper chamber until physically removed.Type: GrantFiled: April 14, 1989Date of Patent: August 14, 1990Assignee: Ecolab Inc.Inventors: John E. Thomas, Haresh C. Lakhan
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Patent number: 4946076Abstract: A dispenser for pasty compositions, having a housing within which a piston displaceable in only the direction of emptying is arranged. An actuator enables a headpiece to act on a restorable wall which can be pressed in the direction towards the piston, the headpiece having a dispenser outlet opening. The wall forms an outlet tube the opening of which is coordinated to the outlet opening, and on which opening a stopper is formed which closes the outlet opening. The outlet opening is formed in the front side actuator and the actuator can act on the wall by means of the lever transmission.Type: GrantFiled: October 3, 1988Date of Patent: August 7, 1990Assignee: Bramlage Gesellschaft mit beschrankter HaftungInventors: Ludger Hackmann, Josef Wilken
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Patent number: 4946068Abstract: A specially arranged fresh catalyst container is provided to effectively and efficiently transport store, and dispense fresh catalyst into a resid hydrotreating unit in an oil refinery. The fresh catalyst container is equipped with monorail- and bridge crane- grab channels to receive and be carried by the grab hooks of a monorail, as well as by the grab hooks of an overhead bridge crane. The container also has separate forklift channels to accommodate movement of the container by a forklift truck onto railway cars and flatbed trucks for transport to and from the refinery. The container has special electronic and visual indicators for indicating the type of catalyst within the closed interior of the container.Type: GrantFiled: September 30, 1985Date of Patent: August 7, 1990Assignee: Amoco CorporationInventors: Michael E. Erickson, Roman T. Plichta
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Patent number: 4946074Abstract: A tamper evident manually actuated pump sprayer includes a locking device which, according to one embodiment, extends between the trigger actuator and a confronting portion of the pump body and abuts against a trigger flange. In another embodiment, the device engages the underside of the trigger and snap fits into the sprayer nozzle cap located adjacent the trigger.Type: GrantFiled: June 15, 1989Date of Patent: August 7, 1990Assignee: Calmar, Inc.Inventor: Richard P. Grogan
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Patent number: 4944386Abstract: A mechanism for removing material from the surface of a conveyor belt which includes a blade adapted to be positioned in engagement with the conveyor belt surface, a plurality of tethers each having one end attached to the rigid frame of the conveyor mechanism and having the other end attached to the blade for securing the blade in position relative to the conveyor belt while allowing the blade to move in a vertical direction in response to vertical deflections of the conveyor belt, and a container attached to the blade for receiving and confining varying amounts of a ballast material, whereby the ballast material urges the blade into engagement with the conveyor belt with a force dependent upon the mass of the ballast in the container.Type: GrantFiled: January 8, 1990Date of Patent: July 31, 1990Assignee: Martin Engineering CompanyInventor: Robert T. Swinderman
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Patent number: 4944431Abstract: A trigger actuated dispenser pump for dispensing product from a container, in which a multi-function piston member has a primary piston reciprocable in a pump chamber and a secondary piston reciprocable in an outlet chamber. The primary piston draws product from the container, pressurizes it and pumps it into the outlet chamber. The secondary piston functions to reduce pressure in the outlet chamber during initial movement of the pump, tending to promote flow from the pump chamber into the outlet chamber. A flow restrictor is positioned in the pump chamber and is operative to limit reverse flow from the pump flow into the container. An outlet valve in the outlet chamber functions to prevent dribbling of product at the end of a discharge or pressure stroke, remaining closed when the pressure of product in the outlet chamber is below a predetermined minimum, and a positive shut-off valve may be positioned in the outlet chamber for precluding flow from the pump when it is an at-rest position.Type: GrantFiled: September 23, 1988Date of Patent: July 31, 1990Inventor: William S. Blake
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Patent number: 4944505Abstract: A sheet length detector with skew compensation for use in apparatus for batching and counting currency, food stamps or the like. Sheets are advanced past a pair of sheet sensors which are disposed at transversely spaced locations on the feed path on either side of the nip formed by a pair of opposing feed members. A timing interval is begun upon the actuation of both sheet sensors and ended upon the deactuation of both sensors following their initial actuation. The duration of the timing interval provides a measure of sheet length. This measure is then corrected for skew, which is determined from the time lapse, if any, between the deactuation of one sensor and the deactuation of both sensors. The corrected measure may be compared with an absolute reference or with the results of a previous length measurement.Type: GrantFiled: January 30, 1989Date of Patent: July 31, 1990Assignee: Brandt, Inc.Inventor: William Sherman, III
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Patent number: 4944368Abstract: A fork lift assembly is supported against a single rectangular mast by at least four separate bearing wheel assemblies. The rectangular mast is positioned relative to the fork lift assembly so that a front edge of the rectangular mast is positioned directly in line with the torque forces exerted by the load. Since the bending forces applied to the mast by the lifted load are in the direction of the edge of the mast, as opposed to the side of the mast, the mast can support a greater load. Further, the positioning of the four bearing wheel assemblies contacting each of the four sides of the masat inherently eliminate any side-to-side and twisting play in the fork lift assembly.Type: GrantFiled: May 25, 1989Date of Patent: July 31, 1990Inventor: J. Christopher Duderstadt