Patents Represented by Law Firm Harris, Kern, Wallen & Tinsley
  • Patent number: 5080229
    Abstract: Apparatus and method for molding a strip of blind rivets, with each of the rivets having a pin within a sleeve and with the pin having a pulling head and shank, including a strip advance rod mounted in the apparatus for movement between first and second positions, a set of pin mold cavities and a set of sleeve mold cavities, a first runner for feeding the pin mold cavities and including a band around the rod, a second runner overlying the first runner for feeding the sleeve mold cavities, opposing mold members defining the sets of cavities and a sprue for feeding molding material to the runners, with the rod and strip moving together when the mold members are out of engagement for advancing the molded parts, and with the rod moving through the strip when the mold members are in engagement for returning the rod to the first position.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: January 14, 1992
    Assignee: The Hartwell Corporation
    Inventors: Douglas H. Adkins, John P. Anderson, Robert L. Conly, Thomas G. Singer
  • Patent number: 5069253
    Abstract: A flexible hose assembly for a mercury line for a manometer, and including a length of convoluted hose having an end, an inner sleeve positioned over the hose and having an end welded to the hose end, a hose fitting having an end and a welding section spaced from the end with the fitting end welded to the inner sleeve, a braid positioned over the hose and inner sleeve, and an outer sleeve positioned over the braid and having an end welded to the braid end and to the fitting at the welding section. A method of producing such a hose assembly.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: December 3, 1991
    Inventor: Benjamin H. Hadley
  • Patent number: 5064355
    Abstract: A deep well pump for positioning in a bottom hole assembly and having at least one fluid pump and at least two fluid powered motors with the pump and motor pistons carried in alignment on the piston rod. The pump includes passages for delivering a power fluid to one end of each of the motor cylinders and for receiving exhaust fluid from the other end of the motor cylinders, and a valve for reversing this operation. A first sleeve is positioned around the first motor cylinder defining a power fluid path from one end of the first cylinder to one end of the second cylinder, a second sleeve is positioned around the first sleeve defining an exhaust fluid path from the other end of the first motor cylinder, and a third sleeve is positioned around the second motor cylinder defining an exhaust fluid path from the other end of the second motor cylinder, with the first and second exhaust fluid paths interconnected.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: November 12, 1991
    Assignee: Trico Industries, Inc.
    Inventors: John M. Kelleher, David B. Dillon
  • Patent number: 5058575
    Abstract: A splint device for immobilizing the spine of a patient, including a frame having a central support, first wings for fixing the head of the patient to the central support, second wings for fixing the trunk of the patient to the central support, and attachments for joining the respective wings together about the patient, an open central channel and right and left channels on each side of and parallel to the central channel in the frame central support, a cover fixed to the frame and overlying the central support enclosing the channels, each of the right and left channels having an open end, and with stiffener bars slidably insertable into the enclosed right and left channels through the open ends thereof.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: October 22, 1991
    Assignee: Hartwell Medical Corporation
    Inventor: John P. Anderson
  • Patent number: 5054909
    Abstract: A lamp housing for a motion picture projector which provides for moving the projection lamp forward and backward, up and down, and side to side, for changing the position of the lamp with respect to the focusing reflector and the film aperture. A control for automatically setting the lamp at two preselected focusing locations. Manual adjustment for moving the lamp in all three directions and remote electrical control means for moving the lamp in all three directions.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: October 8, 1991
    Assignee: Christie Electric Corp.
    Inventor: Steinar A. Larsen
  • Patent number: 5035394
    Abstract: An isolator for seismic activity including an upper level for supporting an object to be protected, an intermediate level, and a lower level for attachment to the floor or other structure. An interconnection is provided between the upper and intermediate levels to permit relative movement between the levels along a first axis, and a similar interconnetion is provided between the intermediate and lower levels to permit relative between along a second axis perpendicular to the first axis. Each of the interconnections includes one or more bars mounted on one of the levels and defining guide faces oblique to the axis of movement, and a lever pivotally mounted on the other of the levels with a roller for engaging the guide faces, with a spring biasing the roller toward the guide faces. The interconnection also includes tracks and bearings riding on the tracks to provide the interface movement between the levels.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: July 30, 1991
    Assignee: The J. Paul Getty Trust
    Inventor: Wayne R. Haak
  • Patent number: 5020426
    Abstract: A food product cooker having a main frame with a loading path and a discharge path, a cooking oil pan, a plurality of product carriages, and a main drive endless chain for moving the carriages about the main frame to and from the pan, with each of the carriages including a food product holder for holding a food product and a support arm having first and second ends with the drive chain attached at the first end and with a holder attached at the second end. Also a load support member and a loading conveyor downstream of the load support member, a first lifting rail for lifting a food holder away from the loading conveyor, a first pressure rail for moving the food holder toward the loading conveyor, a holder body stripper in the discharge path, and a discharge track for guiding cooked food products away from the discharge path.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: June 4, 1991
    Assignee: Valley Grain Products, Inc.
    Inventors: Jonathan C. Cope, Michael F. Grady, Willard W. Pitman
  • Patent number: 5014892
    Abstract: A camera carrying device having a support plate with a slot in the plate with the slot having a closed end and an open end joined by an intermediate section, with the intermediate section of lesser width than the closed end, an angle plate having first and second arms, with one of the arms disposed at an angle to the other, a first camera engaging stud carried in the first arm, and a second slot engaging stud carried in the second arm, with the second stud having an end section and an intermediate section, with the second stud end section larger than the slot, with the second stud intermediate section slideable along the slot intermediate section, and with the second stud intermediate section non-circular in cross-section.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: May 14, 1991
    Inventor: Anthony S. Copeland
  • Patent number: 5013615
    Abstract: A glass to metal seal for mounting an electrical conductor in a metal wall, such as a microelectronic circuit case, and a method of mounting. The metal lead which serves as the electrical conductor is coated with a layer of iron by electroplating and the iron coated lead is mounted in the opening of the metal wall with a glass insulating sleeve. In an alternative embodiment, a barrier layer of electroplated and sintered nickel is provided on the metal lead under the iron layer. A similar layer of iron may be provided on the case wall at the lead opening, and a barrier layer may be provided on the case wall under the iron layer.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: May 7, 1991
    Assignee: General Ceramics, Inc.
    Inventor: Robert J. Sisolak
  • Patent number: 5010035
    Abstract: A semiconductor device wafer base wherein devices may be fabricated in silicon carbide, the base having a compatible substrate and a beta silicon carbide overlay layer epitaxially related to the substrate, the beta silicon carbide layer being unpolytyped, single crystal, uncracked, without twins, and having integrated circuit quality surface morphology. Preferably, the substrate is a single crystal of titanium carbide, which is the same cubic lattice-type as beta silicon carbide with a lattice parameter different from that of beta silicon carbide by less than about 1%. Additionally, the thermal expansion coefficients of beta silicon carbide and titanium carbide are nearly the same, minimizing the creation of thermal stresses during cooling and heating. The beta silicon carbide is useful in fabricating semi-conductor devices for use at much higher temperatures than is silicon, and for use at high power levels, at high frequencies, and in radiation hardened applications.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: April 23, 1991
    Assignee: The Regents of the University of California
    Inventors: Rointan F. Bunshah, James D. Parsons, Oscar M. Stafsudd
  • Patent number: 4998047
    Abstract: An ignition circuit for explosives with a monostable multi-vibrator controlling a transistor in circuit with a battery and the primary winding of a switching transformer, with the secondary winding directly connected to spaced electrodes at the explosive.
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: March 5, 1991
    Assignee: James E. Meagher
    Inventor: Richard A. Rosenkrans
  • Patent number: 4986576
    Abstract: A locking entry door latch equipped with a positive locking dead bolt and a latch bolt. The latch includes a housing, a sliding latch bolt mechanism, a sliding dead bolt mechanism, a center bolt to resist longitudinal loading, a strike assembly with a precatch that holds the door latched when it is not completely closed and a final catch for the latch bolt and dead bolt, a locking mechanism and inside and outside operating handles. Both the locking mechanism and the operating handles are independently operable from inside or outside the vehicle.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: January 22, 1991
    Assignee: The Hartwell Corporation
    Inventor: John P. Anderson
  • Patent number: 4984934
    Abstract: A pipelaying system adapted for deployment on a vessel for use in a body of water and having at least one reel for storage and layout of a rigid walled pipeline and including a pipe take-off drum for mounting on the vessel for rotation about a horizontal drum axis, and a drive unit operably connected to the reel and adapted to permit control of the rate of movement of the pipeline, and methods of spooling on and spooling off.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: January 15, 1991
    Assignee: Sante Fe International Corporation
    Inventor: Carlos E. Recalde
  • Patent number: 4978548
    Abstract: Method and apparatus for continuous production of tortilla chips, including mixing tortilla flour and water to form a dough, rolling the dough into a coninuous sheet, cutting tortilla shapes from the sheet, moving the tortilla shapes continuously through a baking oven to produce baked products, moving the baked products continuously along an equilibration conveyor to substantially equalize the moisture content of each baked product throughout the product to form an equilibrated product, moving the equilibrated product continuously through a refrigeration unit to cool the product to form a cooled product, cutting the cooled products into chip shapes, and moving the chip shapes to a fryer to produce the tortilla chips. The frying step may be continuous or batch as desired.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: December 18, 1990
    Assignee: Valley Grain Products, Inc.
    Inventors: Johanthan C. Cope, Alan E. Davis, William B. Pitman, Kathy M. Row
  • Patent number: 4964544
    Abstract: A push up fluid dispenser having a fluid storage container and a vertically oriented plunger carried in the container, with the plunger being manually pushable upward for dispensing fluid from the container. The container includes a valve cylinder mounted in the container and having an upper opening and an interior passage for slidingly receiving the plunger, and the plunger having a fluid flow passage therein providing a flow path from the cylinder interior to the exterior of the dispenser. A first one-way valve is disposed for control of fluid flow into the cylinder interior through an upper opening and a second one-way valve is disposed for control of fluid flow from the cylinder interior into the plunger passage, with a spring between the cylinder and plunger urging the plunger downward.
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: October 23, 1990
    Assignee: Bobrick Washroom Equipment, Inc.
    Inventors: Emmanuel A. Hanna, Henry J. Loewenthal
  • Patent number: 4964542
    Abstract: A frozen beverage dispenser for use with a liquid/ice slurry machine which freezes a liquid to form a slurry and continuously circulates the slurry through the machine for maintaining the slurry in the desired state. The dispenser includes a nozzle connected to the machine by a flexible line having concentric inner and outer tubes, with the slurry being continuously circulated through the line between the machine and the nozzle. The nozzle has a flow path therethrough with the line connected at one end of the flow path and with a valve for controlling flow out the other end, and a bypass passage between the inner and outer tubes for return flow of the slurry when the valve is closed.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: October 23, 1990
    Assignee: Bar-Master International
    Inventor: Dell W. Smith
  • Patent number: 4964015
    Abstract: A chair for conducting the electrostatic charge of an occupant to the floor on which the chair rests, with the chair seat carried on a support unit which permits rotation of the seat and adjustment of the height of the seat above the floor. The support unit includes an outer sleeve and an inner sleeve moving vertically relative to the outer sleeve, and an electrical resistor connected between the inner and outer sleeves and in sliding contact with at least one of the sleeves, typically by means of a spring finger strip mounted in a groove of a bushing or collar.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: October 16, 1990
    Assignee: Zero Corporation
    Inventors: Richard L. Crooker, Vincent J. Fitzgerald, Jeffery D. Campbell
  • Patent number: 4963198
    Abstract: An alkaline aqueous solution comprising hexavalent chromium, trivalent chromium, and a complexing agent for trivalent chromium sufficiently effective to solubilize at least 20 ppm of trivalent chromium forms a protective coating when contacted with zinc, aluminum, and particularly zinc-aluminum alloys.
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: October 16, 1990
    Assignee: Brent Chemicals International plc
    Inventor: George L. Higgins
  • Patent number: D313137
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: December 25, 1990
    Assignee: Bobrick Washroom Equipment, Inc.
    Inventors: Emmanuel A. Hanna, Henry J. Loewenthal
  • Patent number: D314143
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: January 29, 1991
    Assignee: Guess?, Inc.
    Inventor: Pierre Dinand