Patents Represented by Attorney, Agent or Law Firm George F. Bethel
  • Patent number: 6436023
    Abstract: A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to maintain paper within the confines of the frame as the frame moves upwardly. The frame is balanced by a constant force spring, and is indexed by optical sensors. The frame includes two adjustable fences for variously sized paper which adjustably moves with paddles to press the paper edges downwardly in the stack. Pinch rollers for driving the paper include low inertia drive rollers formed of a relatively low density plastic material with a pair of idler rollers. To improve stacking, ironing tractor idler rollers iron the tractor perforations, and chains orient the catenary stacking movement.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: August 20, 2002
    Assignee: Printronix, Inc.
    Inventors: Gordon B. Barrus, Moshe Ben-Yeoshua, Saul Gutnik, Fritz Dietiker
  • Patent number: 6437280
    Abstract: A method of forming a printer tip on a metal printer hammer spring by providing a printer tip from a range of materials from the group consisting of sintered tungsten carbide, cemented tungsten carbide, composite ceramics, metallic materials, noble metals, metal carbides, borides, nitrides and alloys and mixtures thereof. The printer tip is pressed against the hammerspring while electrically softening the printer hammerspring through a voltage established by an electrode contacting the printer tip. A plating or coating of the printer tip beforehand can be undertaken with a conductive metallic material disposed on the surface of the printer tip. The printer tip is fused to the hammerspring and a milling of a desired form to the printer tip and hammerspring by an electrode discharge milling process can take place thereafter.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: August 20, 2002
    Assignee: Printronix, Inc.
    Inventor: Rohit Sharma
  • Patent number: 6423155
    Abstract: A new high strength steel alloy characterized by having high DC magnetic saturation, ultra high tensile, yield and fatigue strengths that is particularly suited for use as a hammerspring in hammerbanks in impact printers and for other applications where magnetic alloys are used and high mechanical strength is desirable. The alloy is formed of the following composition in weight percent: about 20% to about 35% Co; about 2% to about 6.0% Ni; about 0.0 to about 0.15% C; about 0.75% to about 3% Mo; 0% to about 3.0% Cr; 0% to about 2% Mu; 0% to about 0.02% Si; 0% to about 0.003% P; 0% to about 0.001% S; 0% to about 0.005% 02+N2;with the balance comprised of Fe. A process for making the alloy includes homogenizing preferably at a temperature of 2150° F. for 24 hours, and solution treating at a temperature in the range of about 1500° F. to about 1700° F. under a vacuum or inert gas protective atmosphere; air-cooling; and precipitation aging at a temperature in the range of about 800° F.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: July 23, 2002
    Assignee: Printronix, Inc.
    Inventors: Y. Grant Chang, Norman E. Farb
  • Patent number: 6416443
    Abstract: An exercise treadmill with a deck retention system including a frame with a deck supported resiliently on the frame. A continuous belt having an upper run over the deck and a lower run under the deck is driven by a roller connected to a motor. A glide surface is connected to the frame in contact with a front and/or rear edge of the deck. At least one roller can be connected to the frame and emplaced in contact with the edge of the deck to restrict longitudinal movement of the deck between the glide surface and the roller. Alternatively, instead of the roller a second glide surface in contact with the edge of the deck opposite from the first glide surface, or a second roller can be placed to allow up and down movement of the deck between the rollers and/or the plastic glide surfaces while restricting longitudinal movement.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: July 9, 2002
    Assignee: Unisen, Inc.
    Inventors: Ricky T. K. Choy, Stan Huang
  • Patent number: 6361228
    Abstract: A thermal printer having a source of print media, a source of print ribbon, a rotatable platen, and a print head in associated placement with the platen over which print ribbon and media pass for printing purposes. A pivotally connected ribbon support is placed before and/or after the passage of the ribbon over the print head for pivotal movement across the width of the print ribbon. The support can be a roller, and support can be combined for contact with the ribbon on surfaces opposite from each other. A drive for the print ribbon can move the print ribbon by a motor connected to the source and collecting spindle based upon the Back EMF of at least one motor.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: March 26, 2002
    Assignee: Printronix, Inc.
    Inventors: Gordon B. Barrus, Dennis R. White
  • Patent number: 6344630
    Abstract: A thermoelectric food service container having a doubled walled plastic molded container with foam disposed between the walls, and a door for access to container. A thermoelectric unit is connected to the container through access openings, and has P and N type semi-conductors connected for the flow of current between them from a power supply. Controls control the flow of current to the P and N type semi-conductors and a fan circulates air within the container over food containers in spaced relationship on support racks within the container.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: February 5, 2002
    Assignee: Cambro Manufacturing Company
    Inventors: Charles W. Jarvis, Johannes Le
  • Patent number: 6273288
    Abstract: A removable cover for a food pan which seats on upright side walls of the food pan and has an opening with a hinged lid mounted interiorly of the periphery of the cover for access to the pan. A peripheral flange on the cover seats over and downwardly on the edge of the pan with the cover having an upwardly extending flange surrounding at least in part the opening of the cover. A downwardly extending flange surrounds at least in part the periphery of the hinged lid for seating over the flange cover. A hinge stop on the cover stops the hinged lid when opened. A notch in the hinged lid provides placement of a serving utensil therein.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: August 14, 2001
    Assignee: Cambro Manufacturing Company
    Inventor: Charles W. Jarvis
  • Patent number: 6248280
    Abstract: A process and apparatus for forming a seal between a filter cartridge wall and a pleated filter disposed within the cartridge having a support for rotating the cartridge. A nozzle is connected to a source of sealant for injecting sealant into an area between the wall of the cartridge and the filter media. A valve connected to the nozzle valves sealant to the nozzle and has a draw back feature after a desired amount of sealant is injected. The method for sealing the filter media to the wall of the cartridge includes rotating the filter cartridge while disposing a nozzle into the interior of the cartridge and injecting a sealant through the nozzle controlled by a valve. The valve draws flow backwardly from the nozzle at the termination of the injection of sealant.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: June 19, 2001
    Assignee: Bacou USA Safety, Inc.
    Inventors: John J. Kern, Anthony V. Osborne
  • Patent number: 6244768
    Abstract: A line printer with a hammerbank having print hammers with printing tips and a ribbon supported for impact by the tips for printing on media and a metal platen for supporting the media. An elastomer on the metal platen supports the media and has a layer of material harder than the elastomer extending inwardly from its surface which receives the impacts of the hammer tips. The harder material can be particles extending inwardly randomly from the surface of the elastomer of a ceramic having a sphericity exceeding 0.50 up to 35 percent of the thickness of the elastomer, and in the range of 20 microns to 400 microns in size.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: June 12, 2001
    Assignee: Printronix, Inc.
    Inventors: Y. Grant Chang, Norman E. Farb
  • Patent number: 6183406
    Abstract: A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to maintain paper within the confines of the frame as the frame moves upwardly. The frame is balanced by a constant force spring, and is indexed by optical sensors. The frame includes two adjustable fences for variously sized paper which adjustably moves with paddles to press the paper edges downwardly in the stack. Pinch rollers for driving the paper include low inertia drive rollers formed of a relatively low density plastic material with a pair of idler rollers. To improve stacking, ironing tractor idler rollers iron the tractor perforations, and chains orient the catenary stacking movement.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: February 6, 2001
    Assignee: Printronix, Inc.
    Inventors: Gordon B. Barrus, Moshe Ben-Yeoshua, Saul Gutnik, Fritz Dietiker
  • Patent number: 6183398
    Abstract: An exercise trainer having a frame with a flywheel supported on the frame and first and second crank arms having a common axle on the flywheel. A first foot link and a second foot link are respectively connected to the crank arms for pivotal reciprocating movement. The links have channel tracks and an elongated tunnel. Bearing surfaces support the first foot links rearwardly and engage the channels. Foot pedals are mounted on the foot links for relative movement on the foot links. A flexible member such as a belt, cable, or chain is connected to the foot pedal. A lower portion of the flexible member is connected to a fixed location or ground on the frame. A forward and rearward rotational support such as a pulley receives the flexible member defining a lower portion wrapping around the pulleys and connected to the frame. The pulleys are mounted in the tunnel to provide movement of the foot pedals greater than twice the length of the crank arm.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: February 6, 2001
    Assignee: Unisen, Inc.
    Inventors: John C. Rufino, Yong Ming Goh
  • Patent number: 6173458
    Abstract: A portable sink having a sink module and a hot and cold water outlet connected to a spigot and a used water outlet from said sink connected to a cabinet mounted on wheels having at least one door to access the interior thereof. At least one tank for fresh water and a reservoir for used water is mounted in the cabinet. An electrical connection for powering a pump and a heater connected to the outlet of the pump has an outlet connected to the hot water outlet and a connection from the pump to the cold water outlet. A hammer arrester diminishes line surges and fluidic pounding from the pump, and a flow check valve prevents back flow to the fresh water tank.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: January 16, 2001
    Assignee: Cambro Manufacturing Company
    Inventor: Larry D. Maddux
  • Patent number: 6146033
    Abstract: A new high strength steel alloy characterized by having high DC magnetic saturation, ultra high tensile, yield and fatigue strengths that is particularly suited for use as a hammerspring in hammerbanks in impact printers and for other applications where magnetic alloys are used and high mechanical strength is desirable. The alloy is formed of the following composition in weight percent: about 20% to about 35% Co; about 2% to about 6.0% Ni; about 0.0 to about 0.15% C; about 0.75% to about 3% Mo; 0% to about 3.0% Cr; 0% to about 2% Mn; 0% to about 0.02% Si; 0% to about 0.003% P; 0% to about 0.001% S; 0% to about 0.005% O.sub.2 +N.sub.2 ; with the balance comprised of Fe.A process for making the alloy includes homogenizing preferably at a temperature of 2150.degree. F. for 24 hours, and solution treating at a temperature in the range of about 1500.degree. F. to about 1700.degree. F. under a vacuum or inert gas protective atmosphere; air-cooling; and precipitation aging at a temperature in the range of about 800.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: November 14, 2000
    Assignee: Printronix, Inc.
    Inventors: Y. Grant Chang, Norman E. Farb
  • Patent number: 6099293
    Abstract: A process and apparatus for forming a seal between a filter cartridge wall and a pleated filter disposed within the cartridge having a support for rotating the cartridge. A nozzle is connected to a source of sealant for injecting sealant into an area between the wall of the cartridge and the filter media. A valve connected to the nozzle valves sealant to the nozzle and has a draw back feature after a desired amount of sealant is injected. The method for sealing the filter media to the wall of the cartridge includes rotating the filter cartridge while disposing a nozzle into the interior of the cartridge and injecting a sealant through the nozzle controlled by a valve. The valve draws flow backwardly from the nozzle at the termination of the injection of sealant.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: August 8, 2000
    Assignee: Bacou USA Safety, Inc.
    Inventors: John J. Kern, Anthony V. Osborne
  • Patent number: D442756
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: May 22, 2001
    Assignee: Cambro Manufacturing Company
    Inventors: Charles W. Jarvis, Johannes Le
  • Patent number: D446076
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: August 7, 2001
    Assignee: Cambro Manufacturing Company
    Inventors: Ruane S. Jeter, Charles W. Jarvis
  • Patent number: D447906
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: September 18, 2001
    Assignee: Cambro Manufacturing Company
    Inventors: Charles W. Jarvis, Paul Dowd, Terry L. Burdick
  • Patent number: D449206
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: October 16, 2001
    Inventor: Stephen DuBow
  • Patent number: D456215
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: April 30, 2002
    Inventor: Stephen DuBow
  • Patent number: D434946
    Type: Grant
    Filed: January 16, 1999
    Date of Patent: December 12, 2000
    Assignee: Cambro Manufacturing Company
    Inventor: Charles W. Jarvis