Patents Represented by Attorney John C. Cooper, III
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Patent number: 4889522Abstract: The rotary bag making machine of the present invention is adapted to make side seal bags having a plastic drawstring through a hem in the top of the bag. More specifically. The rotary bag machine of the present invention includes a two part, elongate sealing bar having sealing edges, the first part of which is heated to a first temperature for sealing two layers of plastic bag material and the second part of which is heated to a second higher temperature for sealing the six layers which are present when hems are formed with inserted drawstrings. The second part of the seal bar is not only designed to form the seal but to heat weld together the drawstring plastic so that it will not separate or tear apart when the bag is gathered and subsequently tied with the drawstring.Type: GrantFiled: November 14, 1988Date of Patent: December 26, 1989Assignee: Custom Machinery Design, Inc.Inventor: Peter J. Gietman, Jr.
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Patent number: 4865748Abstract: A method and system for utilizing variable frequency electromagnetic energy to inhibit, prevent, reverse, or alter the formation of rust or scale on various liquid contacting surfaces is disclosed. Initially, electromagnetic test signals of varied frequency are directed into a fluid filled system at a first location. The current intensity of the signals are simultaneously measured at a second location some distance from the first location. The measured current intensity, relative to the varied frequency of the test signals, provide an energy absorption/emission profile of the liquid. A treatment frequency--generally the frequency at which maximum absorption is observed--is then selected from such absorption/emission profile and treatment is carried out at such selected frequency.Type: GrantFiled: April 20, 1988Date of Patent: September 12, 1989Assignee: Aqua-D Corp.Inventor: Dwain E. Morse
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Patent number: 4865747Abstract: An electromagnetic field treating device includes a conduit formed of nonmagnetic material having an inlet and an outlet such that fluid can pass through the conduit in a direction which is parallel to the axis of the conduit, and a ferromagnetic core which includes a corkscrew shaped core portion which is positioned within the conduit in parallel spaced relation thereto. The electromagnetic fluid treating device also includes means for mounting the core in a fixed position within the conduit, and at least one electromagnetic coil which is electrically insulated from the conduit and is positioned adjacently outside of the conduit so that the central axis of each coil either intersects or nearly intersects the core. The electromagnetic fluid treating device preferably has one or two electromagnetic coils which are each mounted sidewardly from the conduit to face toward the ferromagnetic core such that the central axis of each coil is perpendicular to the conduit.Type: GrantFiled: January 27, 1988Date of Patent: September 12, 1989Assignee: Aqua-D Corp.Inventors: Kenneth J. Larson, Gary P. Lunde
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Patent number: 4848793Abstract: A child's safety vest is disclosed for use in automobiles and other vehicles having lap-belt passenger restraining systems. A stress plate, which attaches to the lap belt, forms a vertical sub-frame to support and secure a waist band and shoulder bands which encircle the child wearer. The stress plate is preferably formed of sheet metal material and a padded front, and the waist and shoulder bands are adjustable to accommodate children of varying sizes.Type: GrantFiled: August 17, 1987Date of Patent: July 18, 1989Assignee: T & H, Inc.Inventor: Fred J. Huspen
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Patent number: 4831839Abstract: A frozen comestible freezer with a freezing chamber, a receiving chamber, and a tank of liquid comestible fed to the receiving chamber through an aerator proportioner which provides the correct proportion of liquid comestible and air for the freezing chamber. The aerator proportioner further contains means for isolating pressure exerted by the comestible product in the chamber from the combined pressures exerted by the liquid comestible and atmospheric pressure of air admitted into the receiving chamber, and thereby minimize backflow concerns brought about by pressure imbalance.Type: GrantFiled: November 9, 1987Date of Patent: May 23, 1989Assignee: Stoelting, Inc.Inventors: Donald A. Anderson, Philip L. Davis, Theodore J. Salkowski
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Patent number: 4822981Abstract: A self-regulating warmer device which is especially suited for the food service industry. Such devices are suitable, for example, for keeping wrapped or unwrapped food products at a desired holding temperature between the time the food is prepared and the time it is delivered to the customer. The warmer device includes a plate on which the food is held and a self-regulating warmer element beneath the plate to keep the plate at a uniform temperature. The plate is preferably used with spaced apart infra-red convection heaters such as those commonly used in fast food restaurants, and provides even food heating regardless of the changes in ambient conditions, the number of food products located between the infrared heater and the plate and provides dramatic reductions in power usage. Moreover, heat losses which occur at the edges of the plates now used for these applications are reduced and localized hot or cold spots are eliminated.Type: GrantFiled: June 19, 1987Date of Patent: April 18, 1989Assignee: Hatco CorporationInventor: Roderick J. Chaudoir
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Patent number: 4814079Abstract: A spirally-wrapped reverse osmosis membrane cell employing an envelope of semipermeable membrane sheets spirally wound or wrapped about a tubular mandrel. The convolutions of the membrane assembly are separated to form an open channel, directed feed flow path leading into a lateral opening or series of openings in a communicating tubular member defining an unobstructed bore throughout its length. The feed separator may comprise a plurality of substantially parallel strips of impermeable material of a thickness sufficient to provide desired separation between membrane sheets and wherein the strips define a meandering fluid flow path throughout the length and width of the membrane sheet.Type: GrantFiled: April 4, 1988Date of Patent: March 21, 1989Assignee: Aqua-Chem, Inc.Inventor: Burnett M. Schneider
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Patent number: 4811504Abstract: A sole or plantar surface for footwear which may be incorporated in a walking appliance or attachment for conventional ski boots, and wherein the footwear has been deliberately configured to retain a foot in a substantially rigid and inflexible manner which interferes with a normal walking gait. The surface configuration facilitates walking by including at least one roll point area spaced rearwardly from the forward end. The one roll point area lies in a plane angularly disposed relative to the longitudinal axis of the plantar surface and in a direction towards the medial surface of the footwear.Type: GrantFiled: January 28, 1988Date of Patent: March 14, 1989Inventor: Clinton R. Bunke
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Patent number: 4811250Abstract: A system is disclosed for determining the positions of a set of points on a body and comparing those points to a set of reference points. The system includes a data acquisition apparatus comprised of emitters, receivers, and microprocessor controls. The emitters are mounted at various predetermined positions on the body, for example a vehicle body or frame, and are triggered in an optimal fashion by the microprocessors. Triggering generates a single acoustic burst signal from an emitter. An array of microphones acts as the receiver. After generation of the signal, the microprocessor initializes an external clock which measures the travel time of the signal from the emitter to the receivers. By repeating this process a number of times, data is acquired which yields the three-dimensional coordinates of a given point when processed by a microprocessor.Type: GrantFiled: May 2, 1986Date of Patent: March 7, 1989Assignee: Applied Power Inc.Inventors: George R. Steber, Michael Mondloch
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Patent number: 4800988Abstract: An adjustable platform for a rung ladder has a footplate which provides sufficient surface area to enable full contact by the users feet. A footplate support system enables the footplate to accomodate a range of angles of inclination of the ladder relative to the horizontal. The footplate support system is releasably secured to two parallel guides running length wise of the ladder, either as part of extruded ladder stiles or secured to stiles of an existing ladder, and is adapted to slide up and down the guides to engage the footplate with the desired rung of the ladder. Clamp means is provided to locate the footplate in the desired position.Type: GrantFiled: April 14, 1988Date of Patent: January 31, 1989Inventor: Joseph Dunmore
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Patent number: 4800824Abstract: An incineration system utilizes a circular cross-section pyrolysis chamber in which waste materials are gasified. A flat cast iron hearth serves as the floor of the pyrolysis chamber and has a number of small holes which are raised above the general hearth level by a number of nipples. The bolted front head of the chamber has a vertically movable front door. When raised, the hinged door assembly may be opened by unscrewing a pair of locking mechanisms which seal the door to a vertically movable frame. Ash removal may be accomplished by partially raising the entire structure, rather than opening the door. The ash ram is rectangular, covers a substantial area of the chamber floor when extended, and utilizes a unique cable and cylinder ram moving system. An air plenum above the chamber also acts as a platform, allowing inspection and maintenance to take place on top of the chamber.Type: GrantFiled: October 13, 1987Date of Patent: January 31, 1989Assignee: Aqua-Chem, Inc.Inventor: Mark A. DiFonzo
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Patent number: 4800123Abstract: A scratch resistant coating for peroxide curable urethane elastomers comprises a radiation curable composition including at least one polyfunctional monomer having three or more acryloloxy groups per molecule, preferably five or more acryloloxy groups per molecule, and at least one N-vinyl imido group containing monomers. The coating is applied to at least one mold surface and the mold is closed for receiving the urethane elastomer. Following curing of the urethane elastomer, a coated, molded product is obtained which has improved scratch and solvent resistant properties on the surface or surfaces of the mold to which the in-mold coating was applied. The coating composition in combination with the elastomer, and the method disclosed in the present invention are especially well suited for coating plastic, optically clear lenses, i.e., those to be used in eye glasses.Type: GrantFiled: September 3, 1987Date of Patent: January 24, 1989Assignee: Freeman Chemical CorporationInventor: Rudolph H. Boeckeler
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Patent number: 4799657Abstract: A powered work clamping device including a housing with an upper and lower chamber and an intermediate chamber communicating with the upper and lower chambers, an upper and lower piston respectively residing in the upper and lower chambers, and wherein the lower piston has a section with reduced diameter slidably and rotatably operating in the intermediate chamber, an index rod projects from the lower piston into an index bore in the upper piston and a piston rod connected thereto. The piston rod projects from the housing and is secured to a work-engaging head. The head is rotatable and independently extendable depending upon operation of the upper and lower pistons and means for rotating the lower piston and actuated upon operation of a check valve served by one of two independently actuated two-stage directional control valves.Type: GrantFiled: November 24, 1987Date of Patent: January 24, 1989Assignee: Applied Power Inc.Inventor: Douglas P. Miller
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Patent number: 4795054Abstract: An insert assembly for a stationary fuel tank filler cap retainer for motor vehicles including motorcycles and the like. The insert assembly includes a hollow inwardly threaded tubular stem to be received in the bore of a tubular member of the filler cap retainer communicating with an opening in the fuel tank. The insert assembly includes a retainer spring member having outwardly extending, angularly disposed spring clips to be received by a notched stationary retainer. The clips are further formed to provide an over-center latching relationship an inwardly extending flange of the retainer upon insertion into the insert assembly the bore of a hollow retainer tube. The insert assembly includes an internal continuous thread for threadingly receiving a fuel cap having a threaded closure stem, and further includes an outwardly extending flanged portion overlying the flange of the stationary retainer tube for protection from deleterious contact with a fuel dispensing nozzle.Type: GrantFiled: July 31, 1987Date of Patent: January 3, 1989Assignee: Harley-Davidson, Inc.Inventor: William H. Brown
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Patent number: 4782535Abstract: A belt is disclosed which may be used for support, comfort and/or decoration, and has particular application in weight lifting, kidney support or other protection and which is of a construction utilizing a plurality of layers, one of which is of an elastically yieldingly compressible and shape-restoring material.Type: GrantFiled: November 23, 1987Date of Patent: November 8, 1988Assignee: Edward H. YewerInventors: Edward H. Yewer, Jr., Clifford L. Cook
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Patent number: 4775163Abstract: A motorcycle has a frame, a front wheel and Y-shaped rockers attached to the axle of the front wheel on either side. Also attached to each rocker is a rigid fork which directly connects the rocker to the frame of the motorcycle and a springed fork which connects the rocker to shock absorbing means which are likewise mounted on the rigid fork. The springed fork is mounted to the rocker intermediate the points at which the rigid fork and axle are mounted to the rocker. The rigid fork is attached to the rocker using an adjustable, split spherical bearing which is attached and held to the rigid fork by a stud. This bearing arrangement engages a pair of bearing races which are held in two prongs of the Y-shaped rocker. Similarly, the springed fork has a stud passing therethrough which also holds a spherical bearing. The bearing engages a bearing race which is held within the rocker.Type: GrantFiled: July 27, 1987Date of Patent: October 4, 1988Assignee: Harley-Davidson, Inc.Inventors: Thomas D. McGowan, Steven W. Wentworth
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Patent number: 4774976Abstract: A hydraulic pressure control valve includes a modulator-controlled solenoid assembly which selectively axially displaces a disc armature adjacent thereto. When not attracted by the solenoid, the armature is biased away from the solenoid by a wave spring. Movement of the armature opens and closes the outlet of a lower body member to a source of hydraulic fluid under pressure. The armature is improved, having dimples on the face adjacent the solenoid assembly to minimize sticking. Additionally, the center pole of the solenoid is axially adjustable and can therefore be set for different valve performance levels. Assembly of the valve is quickly accomplished using pneumatic pressure under performance conditions for adjustment of and setting the initial displacement of the disc armature. Setting is accomplished by crimping the various components in an outer tube.Type: GrantFiled: September 23, 1987Date of Patent: October 4, 1988Assignee: Applied Power Inc.Inventors: James P. Janecke, Ronald C. Koltz
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Patent number: 4767218Abstract: The present invention comprises a mixing paddle assembly which may be used with a variety of mixing devices, but which is especially useful with devices which include a motorized carriage adapted to move along a beam spaced above an elongate mixing vat. Depending from the carriage are a pair of shafts, and within the carriage a separate motor is adapted to move the shafts upwardly and downwardly as the carriage moves along the beam. The mixing paddles of the present invention are affixed to the end of such shafts. The improved paddle assemblies of the present invention include a pair of plastic blades mounted to a blade assembly which includes laterally extending, stationary pegs residing in arcuate slots of pivotably supported end plates, so that the blades may be freely rotated on supporting shafts to be angled differently on the forward and return passes of the paddles. The supporting shafts extend substantially normal to the axis of the respective depending shaft.Type: GrantFiled: May 4, 1987Date of Patent: August 30, 1988Assignee: Stoelting, Inc.Inventors: Joseph J. Palus, Robert E. Williams
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Patent number: 4753259Abstract: A hinge element consists of a tube connector attached to the end of a tube, the end of the tube connector having a notched head portion. Pivotably attached to the notched head of the connector is a bracket element having a spherically shaped, notched end which engages the ends of a spring and a limiting wire. The limiting wire and spring are attached at their other ends to a cross bar and a second tube in which the hinge element and the first tube may slide coaxially. A hand grip is also disclosed which consists of a central grip portion with two cylindrical parallel holes having slits on the outside thereof. At the outer edges of the slits are ribs which, when the outer portions of the grip are tightened, focus the compressive forces generated by the tightening toward the tube portions, thereby creating a strong frictional hold. The hinge and grip configurations are found in a bitubular orthopedic crutch having three sections.Type: GrantFiled: April 3, 1987Date of Patent: June 28, 1988Inventors: Ries B. Hansen, Howard G. Morter
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Patent number: 4747423Abstract: A reducible walking aid is disclosed that incorporates three bitubular sections in slidable engagement with one another in the preferred embodiment. The first and third sections are connected via a pair of elastic cables attached to slidable, bidirectional hinge elements anchored to the near ends of the first and third sections, with the cables running through the tubular sections of the second section. To reduce the size of the walking aid, one pulls in opposite directions on the first and second bitubular sections. Once the hinges are generally clear of the second section, the first section is folded over the second section in one direction. The third section is folded in the opposite direction in a similar fashion to accomplish the complete folding of the crutch.Type: GrantFiled: May 27, 1986Date of Patent: May 31, 1988Assignee: Ortho-Tech Industries, Inc.Inventors: Ries B. Hansen, Orlando J. Casariego