Patents Examined by L. E. Williams
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Patent number: 4596289Abstract: Fire sprinkler head suitable for mounting in a concealed location in the ceiling in a residential dwelling which provides quick and automatic response in the event of a fire. The valve assembly in the sprinkler head is biased to the open mode and is maintained in the closed mode against a positive force tending to move the valve assembly to the open mode by a valve closure which is separable into its two sections at the onset of a fire and the attainment of a predetermined ambient temperature surrounding the valve closure. The two sections of the valve closure are maintained intact as a unit until the temperature of the fire melts a heat fusible alloy composition.Type: GrantFiled: May 10, 1985Date of Patent: June 24, 1986Inventor: Kimball W. Johnson
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Patent number: 4595145Abstract: An improved air distribution apparatus for a regenerator in a fluid catalytic cracking process has been invented. The improvement is in the nozzles which eject air from an air ring to a bed of coke deactivated catalyst. The nozzles are positioned to take air from the centerline of the air ring and are of length 4 to 8 diameters. The nozzles are noted for reduced aspirated catalyst erosion.Type: GrantFiled: October 1, 1984Date of Patent: June 17, 1986Assignee: Texaco Inc.Inventors: Roy E. Pratt, Thomas A. Lionetti, John P. MacLean
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Patent number: 4594028Abstract: This invention presents apparatus and a process for the injection of metered amounts of pulverized materials by a pneumatic device into a vessel which is under variable pressure, and the application thereof to a shaft furnace.Type: GrantFiled: September 30, 1982Date of Patent: June 10, 1986Assignee: Paul Wurth S.A.Inventor: Leon Ulveling
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Patent number: 4592679Abstract: In a process and apparatus for pneumatically conveying loose material in grain or dust form by discharge thereof from a conveyor container, through a conveyor conduit disposed downstream thereof, after the conveyor container has been emptied and before the conveyor conduit is also emptied of the loose material being conveyed, the conveyor conduit is closed at both ends, to maintain that existing condition. After the conduit is thus closed off at both ends, leakage losses of conveying gas are compensated for by supplying a leakage make-up amount. The apparatus has a conveyor conduit which is provided at each of its end portion towards the conveyor conduit and its discharge end portion with at least one closure member to act as inlet and outlet valves respectively. At least one gas feed line from a leakage make-up valve opens into the conduit.Type: GrantFiled: March 9, 1983Date of Patent: June 3, 1986Assignee: Alb. Klein GmbH & Co. KGInventors: Hans H. Boiting, Bernd Federhen, Gerhard Muller-Spath
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Patent number: 4588330Abstract: A device for starting and braking containers and locking them after they are stopped, used in pneumatic conveyors and comprising a frame (1) which successively mounts a sleeve (2) and a trough (3) adjoining a pipe-line (4) and having recesses (8, II) made at the opposite sides and serving as guides for support members of a truck (10) having a drive (12, 13, 14, 15) to move it along the guides and carrying a lever clamp (21) interacting with the container (20) and a cup (23) secured thereon and overlapping the cross-section of the pipe-line (4). An additional cup (28) overlapping the cross-section of the sleeve (2), rigidly coupled with the truck (10) and provided with support members disposed in the recesses (11) of the sleeve (2) is mounted in the sleeve (2) at the side of its butt end facing the trough (3).Type: GrantFiled: February 2, 1984Date of Patent: May 13, 1986Inventors: Adolf M. Alexandrov, Igor I. Volyansky, Jury A. Yashin, Vladimir Y. Tsernes
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Patent number: 4583885Abstract: A vacuum receiver having a first elongate tube oriented along a vertical axis with a second tube of sufficiently greater girth encircling the first tube and forming an annular passage therebetween. A first conduit extends through the side wall of the first and second tubes and opens outwardly inside the first tube. The first tube has a top wall closing off the upper end and an open lower end. A second conduit extends coaxial with the first tube and is smaller in diameter than the first tube and terminates above the top wall. The second conduit communicates with the second tube leading a fluid stream from the passage at a location directly above the top wall. Adjustment structure is provided for varying the effective vertical spacing between the terminal end of the second conduit and the top wall of the first tube to thereby enable a varying of the velocity of the fluid stream in the passage to accommodate a specified material without causing the material to exit the second tube via the second conduit.Type: GrantFiled: August 15, 1984Date of Patent: April 22, 1986Assignee: Kenntnis, Inc.Inventor: Charles W. Thiele
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Patent number: 4582454Abstract: Pulverized coal feed tanks are emptied in sequence via a transport line into the hot blast of a blast furnace. Each tank is carried by three load cells whose outputs are summed and differentiated to obtain the actual feed rate. Gas pressure in the tank is controlled in dependence on the actual feed rate so as to achieve a desired feed rate. To reduce the possibility of inaccurate feeding of coal, the outputs of the respective load cells are compared, and if deviation from a predetermined weight distribution over the load cells is detected, feed from the tank is stopped. The load cells may be duplicated in series, and the summed outputs of the two sets of load cells compared to detect malfunctioning of a load cell, again resulting in cessation of feeding from that tank.Type: GrantFiled: December 29, 1983Date of Patent: April 15, 1986Assignee: Hoogovens Groep B.V.Inventors: Jan H. Brandenburg, Johannes J. M. Cornelissen
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Patent number: 4582455Abstract: A simple form of pneumatic transporter is provided by making two pairs of lines of cut in the wall of a length of ducting and bending outwardly the portions of the wall between each pair of lines of cut. A nozzle means is mounted at the outer end of each of the bent-out portions.Type: GrantFiled: June 18, 1985Date of Patent: April 15, 1986Assignee: British-American Tobacco Company LimitedInventors: Wladyslaw H. Krywiczanin, Peter Harris
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Patent number: 4579320Abstract: Improvements to the various components of hydrostatic bearing levitation systems, systems wherein fluid pressure between a load and the rails of a track system supports and guides the load, are described. The rail has a plurality of lengthwise extending ports and nozzles communicating from the innermost ports through the curved upper wall to the interface area between the rail and the load. The nozzles are arranged in longitudinally aligned groups and in a pair of parallel rows with the groups of one row being longitudinally staggered with respect to the groups of the other row. The nozzles can be inexpensively produced by boring an oversize hole through the upper wall and fixing a cannula, such as a hypodermic needle, in the bore. The cannula's internal diameter is the desired nozzle diameter. The load support member has a compliant outer cover, a central core, and a filler material wound tightly on the core.Type: GrantFiled: April 22, 1985Date of Patent: April 1, 1986Assignee: E. B. Eddy Forest Products, Ltd.Inventor: Herbert E. Gladish
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Patent number: 4578002Abstract: A transport apparatus in which a block of a plurality of flat articles, aligned uprightly and juxtaposed laterally, is transported by air flow through a transport pipeline, which comprises the pipeline, which is inclined upwards in a direction of transport at a loading station of the pipeline and stands uprightly to terminate in a downward opening at an unloading station, a push member, which is movable in the longitudinal direction of the pipeline and has an air pipe, is provided at a rear end of the pipeline, and a band, which is provided near the downward opening and actuated by an air supply means to project toward the center of the downward opening.Type: GrantFiled: June 12, 1984Date of Patent: March 25, 1986Assignee: Snow Brand Milk Products Co., Ltd.Inventors: Kozo Taneda, Masae Chiba, Junichi Naka, Shunichi Watanabe
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Patent number: 4576526Abstract: An arrangement for supplying powdered material to a spraying device in an installation for thermal spraying comprises at least one powder storage container and an injection device by which the powder is introduced into a stream of carrier gas. A buffer chamber is disposed upstream of the injection device and comprises means for controlling the level of the powder, at least one controllable feeding means being connected, by means of a control device, to the level-controlled buffer chamber.The present arrangement allows to obtain a well-defined rate of flow of powder which is constant and adjustable, from one or more powder storage containers.Type: GrantFiled: January 18, 1985Date of Patent: March 18, 1986Assignee: Castolin S.A.Inventors: Niklaus Muller, Daniel Audemars
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Patent number: 4573563Abstract: A transport roller, especially for transporting sheet material such as sheets of paper, has a rigid core surrounded by a friction increasing jacket of elastic material. At least one member is inserted between the jacket and the roller for preventing a relative axial displacement between the core and the jacket. Such member is an endless helical spring partially embedded in the jacket and projecting into a ring groove in the core, whereby the jacket is firmly held in place on the core against any relative axial displacement.Type: GrantFiled: June 19, 1985Date of Patent: March 4, 1986Assignee: Rubber- en Kunststoffabriek ENBI, B. V.Inventor: Johannes C. Delhaes
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Patent number: 4564318Abstract: A gate comprising a body (1) hermetically connected to inlet and outlet branch pipes (2,3) that are arranged coaxially relative to each other and connected to the pipe-line of the pneumatic conveyer. The body (1) accommodates a branch pipe (4) having a cross-section corresponding to the cross-sections of the inlet (2) and outlet (3) branch pipe and kinematically connected to a drive (5) turning it. Rigidly secured to the outer wall of the branch pipe (4) disposed in the body (1) is a damper (6) used to overlap one of the branch pipes (2) connected to the body (1). The damper (6) mounts a ring-like member (7) made from a resilient material. The shape of the member (7) corresponds to the cross-section of the inlet branch pipe (2) to be overlapped. The branch pipe (4) is mounted in the body (1) so that it can swing to a certain extent in a plane perpendicular to the plane of the damper (6) and relative to an axis (8) passing below the longitudinal axis (9) of the inlet (2) and outlet (3) branch pipes.Type: GrantFiled: January 31, 1984Date of Patent: January 14, 1986Assignee: Spetsialnoe Konstruktorskoe Bjuro "Transprogress"Inventors: Adolf M. Alexandrov, Jury A. Tsimbler, Vitaly G. Iljukhin, Jury A. Yashin, Igor V. Kiselev
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Patent number: 4557636Abstract: An apparatus for multiple injection of slurry from a plurality of mine faces or other slurry sources into a slurry line comprises a unique method and apparatus for connecting each slurry injection point to the main slurry line by using a vortex junction apparatus. The vortex junction apparatus provides a means for passing the slurry from one junction point to the next junction point and at the same time provides a means for merging slurry from each injection point into the main slurry line. The junction apparatus also provides a source of water for each injection point, thus eliminating the need for a separate source of water. One embodiment provides for a junction where the main and branch slurry lines are at nearly the same pressure while a second embodiment provides for a junction where the branch slurry line is at a substantially lower pressure than the main slurry line.Type: GrantFiled: March 26, 1984Date of Patent: December 10, 1985Assignee: Conoco Inc.Inventors: Jeffrey L. Beck, Ahmed A. El-Saie
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Patent number: 4552489Abstract: A mobile vehicular mounted pneumatic conveying apparatus is disclosed which comprises a self-propelled vehicle having an elongated boom capable of being elevated and rotated relative to the vehicle, with the boom having a nozzle structure mounted on the other end thereof for engaging dry particulate material to be conveyed. The apparatus also has a material transfer assembly which includes at least one closed vessel for receiving material from said nozzle under vacuum pressure and for subsequently expelling material into a conveying line under positive pressure. The transfer assembly can be easily removed from the vehicle and a rearward carriage that is attached to the transfer assembly can similarly be removed. The apparatus is particularly adapted for conveying large quantities of dry, particulate material such as Portland cement from a large horizontal storage building as opposed to a vertical silo or the like.Type: GrantFiled: November 14, 1983Date of Patent: November 12, 1985Assignee: Cyclonaire CorporationInventors: Wayne M. Jacobson, Roger L. Quaintance
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Patent number: 4551042Abstract: Pumping efficiency for fish and other articles has been achieved far beyond expectations. By extracting water and adding air at a location in the pumping system higher than the initial air injection point, thereby excluding a certain percentage of the water, efficiency is not only increased but variable control capabilities are achieved.Type: GrantFiled: May 17, 1984Date of Patent: November 5, 1985Assignee: Marco Seattle, Inc.Inventors: Stanley R. Hagedorn, Stewart W. Roach
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Patent number: 4548529Abstract: Coal powder is transported from a low pressure zone to an elevated pressure zone bypassing the powder from the low pressure zone to the top of the first one of a number of vertical vessels;passing the powder in each vessel by gravity as a moving bed from the top of the vessel to the bottom thereof;passing the powder from the bottom of each vessel but the last one to the top of the subsequent vessel by mechanical or pneumatic means;discharging the powder from the bottom of the last vessel to the elevated pressure zone.Type: GrantFiled: February 13, 1984Date of Patent: October 22, 1985Assignee: Shell Oil CompanyInventor: Maarten J. van der Burgt
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Patent number: 4547099Abstract: The gate comprises a damper /1/ overlapping the cross-section of a pipe-line /2/ and kinematically connected with a movable link /3/ of a drive /4/ turning it about an axle /5/ disposed on the pipe-line /2/, and a driven pin trip /12/ entering a hole made in the pipe-line and meant to hold the damper /1/ in the closed position. Secured on the damper /1/ is a bracket /8/, and in the kinematic chain connecting the damper /1/ with the drive /4/ there is an angular lever /9/ which is mounted so that it can turn through a limited angle and whose axle /10/ of turning is secured on the bracket /8/ parallelly to the axle /5/ of turning of the damper /1/. One arm of the angular lever /9/ is connected to the movable link /3/ of the drive /4/, and the damper /1/ has guides /13/ made thereon and accommodating a pin trip /12/ which is kinematically connected with the other arm of the angular lever /9/.Type: GrantFiled: April 13, 1984Date of Patent: October 15, 1985Assignee: Spetsialnoe Konstruktorskoe Bjuro "Transprogress"Inventors: Adolf M. Alexandrov, Evgeny F. Bulginov, Jury A. Yashin, Igor V. Kiselev
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Patent number: 4544306Abstract: The difference in the pressure drop in a pneumatic discharge conduit (5) between at least one discharge outlet (3) into the conduit and a point 9 downstream of the discharge outlet caused by lading in the discharge conduit is used to control opening and closing of the lading outlet valve 13 to automatically control pneumatic unloading of lading from a container. In one application, the container is a railway hopper car having a plurality of pneumatic discharge outlets 52, 52' and 52" which discharge into a pneumatic discharge conduit.Type: GrantFiled: February 18, 1982Date of Patent: October 1, 1985Assignee: ACF Industries, IncorporatedInventor: Richard H. Dugge
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Patent number: 4541570Abstract: A hydraulically actuated endgate is presented which places a panel directly in front of the beaters of a manure spreader. The endgate retains all of the manure within the spreader box until the spreading site is reached. The panel is hinged mounted along its top edge to a generally U-shaped structural member. The central portion of the U-shaped member spans the box just in front of the beater. The legs of the U-shaped member are of equal length and extend forward along the sides of the spreader. The very ends are pivotally attached to the box, one on the left, the other on the right. A hydraulic piston attached to an arm secured to one of the pivot points makes it possible to move the structural member upward through an arc of about 100 degrees, then back down to the rest position.Type: GrantFiled: December 7, 1983Date of Patent: September 17, 1985Assignee: The Paul Revere CorporationInventors: David M. Rieke, Larry J. Pingry