Patents Represented by Attorney, Agent or Law Firm Wall Marjama & Bilinski
  • Step attenuator using frequency dependent components and method of effecting signal attenuation
    Patent number: 6784760
    Abstract: A filter circuit directed primarily to use in the CATV industry includes at least one frequency dependent component, such as an RF choke, capacitor or inductor, for attenuating signals over at least a portion of the frequency range of signals which pass through the filter. In a typical application, signals are transmitted and received in both forward and return paths at each end of a multi-channel, two-way communication system. Signals in the frequency range of the return path, or of both paths, are attenuated by a desired amount, which is essentially constant over the frequency range of attenuation. In any case, the circuit component providing the attenuation is frequency dependent, thus providing a number of advantages, such as reducing the number of circuit components, reducing filter size and cost, and/or increasing the filter's electric surge and power handling capabilities.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: August 31, 2004
    Assignee: John Mezzalingua Associates, Inc.
    Inventors: Ahmet Burak Olcen, Henry Pixley
  • Gas sampling system
    Patent number: 6783573
    Abstract: The present invention is directed to a gas sampling system for conducting respiratory gases from a patient respiratory gas output mechanism to a respiratory gas monitoring device. A gas sampling tube is coupled to an input connector. The gas sampling tube is configured to conduct the respiratory gases from the patient to the gas monitoring device. An output connector couples the gas sampling tube to the monitor input connector. An output dryer tube is coupled between the gas sampling tube and the output connector. The output dryer tube is characterized by a tube length and a relative moisture removal efficiency. The relative moisture removal efficiency is dependent on the tube length. The tube length is selected to limit the moisture content of the respiratory gasses being directed into the respiratory gas monitor to a predetermined level.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: August 31, 2004
    Assignee: Welch Allyn Protocol, Inc.
    Inventor: Peter Richardson
  • Hand-held blood pressure measuring apparatus
    Patent number: 6783500
    Abstract: A blood pressure measuring apparatus includes an inflatable cuff which can be wrapped about the limb of a patient. The sleeve includes a sealed interior capable of inflation, and an integrated inflation/measuring device. The integrated device is an elastomeric enclosure which retains a gage and a pneumatic bulb therein and hosing for fluidly interconnecting the pneumatic bulb, the inflatable cuff, and the gage.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: August 31, 2004
    Assignee: Welch Allyn, Inc.
    Inventors: Raymond P. Dromms, Robert L. Vivenzio, John W. Sims, Thomas J. Grant, Scott W. Osiecki, Staci A. Mininger
  • Compression connector for coaxial cable and method of installation
    Patent number: 6780052
    Abstract: An F connector for mounting to the prepared end of a coaxial cable by compression of portions of the connector into tight frictional engagement with the cable. The body and compression ring of the usual F connector are incorporated in a unitary, one-piece body having three axial sections. The first section surrounds and frictionally engages the outer surface of the post stem in the usual manner. The second section is spaced from the stem to provide an annular space for the shielding and outer dielectric layers of the cable, also in the usual manner. A third section of the body is joined to the second section by an area of reduced thickness. In a first disclosed embodiment, the body fractures at the area of reduced thickness in response to an axial force applied to the third section in the direction of the second section.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: August 24, 2004
    Assignee: John Mezzalingua Associates, Inc.
    Inventors: Noah Montena, Stephen Malak
  • Electrode surface treatment process
    Patent number: 6774565
    Abstract: The invention relates to a tungsten electrode which causes minimal cracking when sealed in a quartz glass envelope. The invention includes forming a substantially uniform oxide coating on a selected portion of the shank of a tungsten electrode followed by reducing the oxide coating to substantially elemental tungsten, wherein the electrode exhibits superior properties when sealed in a lamp having a quartz glass envelope. The invention also includes the electrode made by the process.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: August 10, 2004
    Assignee: Welch Allyn, Inc.
    Inventor: Dean A. Bell
  • Electric valve actuator with failsafe apparatus
    Patent number: 6769665
    Abstract: An electric valve actuator with a failsafe device for a rotary type valve that is coupled to a drive shaft screw by means of a clutch. A cam cylinder is secured to the drive shaft screw and is also connected to the stem of the valve. A cam follower is slidably mounted upon the drive shaft and traces a cam profile form in the cylinder as the cylinder turns. A series of torsion springs are connected to the cylinder so that the springs are wound into a loaded condition as the cam cylinder moves from a valve closed position to a cam opening position. In the event of a power failure while the valve is opened, the clutch disengages the motor from the drive shaft and the springs unwind quickly to move the cam cylinder toward the valve closing position. At this time the motion of the cylinder is controlled by the cam follower which regulates the valve closing sequence.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: August 3, 2004
    Assignee: Young & Franklin Inc.
    Inventors: Gabriel Silva, Earl Holdren
  • Adhesive coated polyester felt
    Patent number: 6770582
    Abstract: A composite laminate suitable for use in upholstery, automotive interiors and the like, which is made of a polyester felt substrate, an adhesive coating is contained on said felt substrate which obviates the need for a barrier layer for a vinyl laminate, with a vinyl film overlaying and bonding with said adhesive to said substrate. The method of making the laminate is also disclosed.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: August 3, 2004
    Assignee: Knowlton Nonwovens, Inc.
    Inventor: Stephen D. Copperwheat
  • Configuration for modular rooftop air conditioning system
    Patent number: 6763670
    Abstract: A bus rooftop air conditioning system is made up of one or more self-contained modules having one or more evaporator sections and one or more condenser sections, with each extending transversely across the width of the bus, and with the evaporator sections fluidly communicating with both a common return air opening and a common supply air opening of the bus. The modules may be of a single unit configuration with a single condenser section and a single evaporator section or they may be of a double unit configuration having two condenser sections and two evaporator sections. The total capacity requirements are met by combining the use of single units and double unit configuration, with each of the evaporator sections communicating with a single return air opening and a single supply air opening in a bus.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: July 20, 2004
    Assignee: Carrier Corporation
    Inventors: Peter R. Bushnell, Robert C. Reimann, Christopher Repice, Mark Colton, Xuqiang Liao, Gawain Mundy, Stephen Stopyra, Belin Czechowicz, Suresh Duraisamy, Timothy R. Campbell
  • Modular air conditioner for a bus rooftop
    Patent number: 6763669
    Abstract: A module is provided for attachment to the roof of a bus and includes all of necessary components for conditioning the return air from the passenger compartment and delivering conditioned air thereto. A module can be ganged in various relationships to collectively provide the total capacity required by the bus. Each module includes an evaporator section, a condenser section and a power section including a compressor and an inverter. The evaporator sections have a return air compartment that extends a substantial distance across the roof of the bus such that a single design can meet the needs of various return air duct installations of various types of buses. Provision is made for the selectively mixing of return air with fresh air, with the mixture then being passed by the evaporator blower through the evaporator coils and into the supply air ducts.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: July 20, 2004
    Assignee: Carrier Corporation
    Inventors: Peter R. Bushnell, Mark Colton, Robert C. Reimann, Stephen Stopyra, Christopher Repice, Belin Czechowicz
  • Unibody modular bus air conditioner
    Patent number: 6763668
    Abstract: Rather than having a frame into which, or upon which, an air conditioning system is mounted, a bus rooftop air conditioning module has a unibody which is formed partially of structural members interconnected to the tube sheets of the evaporator and condenser coils to form a structural body which supports the components of the system. In this way the coil tube sheets combine with other structural members to form the supporting body.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: July 20, 2004
    Assignee: Carrier Corporation
    Inventors: Peter R. Bushnell, Robert C. Reimann, Christopher Repice, Mark Colton, Xuqiang Liao, Gawain Mundy, Stephen Stopyra, Belin Czechowicz, Suresh Duraisamy, Timothy R. Campbell, Dennis Stone
  • Modular air conditioner for a bus
    Patent number: 6761038
    Abstract: A module is provided for attachment to the roof of a bus and includes all of the necessary components for conditioning the return air from the passenger compartment and delivering conditioned air thereto. A plurality of modules can be mounted in various relationships to collectively provide the total capacity required by the bus. Each module includes an evaporator section, a condenser section and a power section including a compressor and an inverter. The evaporator sections have a return air compartment that extends a substantial distance across the roof of the bus such that a single design can meet the needs of various return air duct installations of various types of buses. Provision is made for the selective mixing of return air with fresh air, with the mixture then being passed by the evaporator blower through the evaporator coils and into the supply air ducts.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: July 13, 2004
    Assignee: Carrier Corporation
    Inventors: Peter R. Bushnell, Stephen Stopyra, Robert C. Reimann, Belin Czechowicz
  • Leg part for a barber or beauty chair
    Patent number: 6761339
    Abstract: According to a conventional hydraulic-pump-type barber or beauty chair having legs which spread out, radiately and in parallel to a floor surface, from the lower part of a pump, a seat part itself is large and heavy, which results in a high center of gravity. Thus, the chair can quite possibly turn over while it is moved. Further, the legs are arranged at the lower position on the floor surface and are arranged in parallel to the floor surface, resulting in a difficult cleaning under the legs. The present invention is provided with a ring-shaped bracket for fixing the legs with sandwiching the upper part of the hydraulic pump, the upper bracket, and the cylinder part, one another, thereby realizing a design, wherein the legs are radiately arranged therefrom.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: July 13, 2004
    Assignee: Oohiro Works Ltd.
    Inventor: Nobuyuki Minami
  • Lottery game tickets and methods for making same
    Patent number: 6752319
    Abstract: The present invention relates to lottery game tickets and methods for making the same. In one embodiment, a wavelength-sensitive addition is incorporation in game ticket play area. In another embodiment, reflectance characteristics of a game ticket play area are controlled.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: June 22, 2004
    Assignee: Hand Held Products, Inc.
    Inventors: Michael A. Ehrhart, Robert M. Hussey, Todd A. Dueker, Cayetano Sanchez, III, Walter Szrek, John C. Abraitis, Claude Lambert, Francois Gougeon, Robert Boulay, Denis Mondou
  • Condensate removal system rooftop air conditioner
    Patent number: 6751975
    Abstract: Apparatus of removing condensate generated by a plurality of evaporator coils of a vehicular rooftop air conditioning unit. The unit further includes a condenser enclosure in which two opposed end walls are formed by a pair of condenser coils. A condenser fan is mounted for rotation in an opening in the top wall of the enclosure and is axially aligned along the central axis of the enclosure along with the fan motor which is suspended inside the enclosure beneath the fan. A slinger dish is mounted on the motor shaft beneath the motor in close proximity with the floor of the enclosure. The floor, in turn, slopes inwardly from all sides toward the center of the enclosure and condensate generated by the evaporator coils of the unit is channeled into the enclosure and collected in a recess beneath the motor.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: June 22, 2004
    Assignee: Carrier Corporation
    Inventor: Robert C. Reimann
  • Spoon
    Patent number: D491770
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: June 22, 2004
    Assignee: Oneida, Ltd.
    Inventor: Nickolas F. Strange
  • Spoon
    Patent number: D493336
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: July 27, 2004
    Assignee: Oneida, Ltd.
    Inventor: Diane Shane-Schuldt
  • Eye viewing device
    Patent number: D493528
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: July 27, 2004
    Assignee: Welch Allyn, Inc.
    Inventors: Chris R. Roberts, Steven R. Slawson, Scott P. Gucciardi, Scott W. Osiecki, Timothy R. Fitch, Ronald J. Kingston
  • Eye viewing device
    Patent number: D493887
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: August 3, 2004
    Assignee: Welch Allyn, Inc.
    Inventors: Chris R. Roberts, Steven R. Slawson, Scott P. Guicciardi, Scott W. Osiecki, Timothy R. Fitch, Ronald J. Kingston
  • Locking terminator and port cap
    Patent number: D495661
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: September 7, 2004
    Assignee: John Mezzalingua Associates Inc.
    Inventor: Shawn Chawgo
  • Locking terminator and port cap
    Patent number: D495663
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: September 7, 2004
    Assignee: John Mezzalingua Associates, Inc.
    Inventor: Shawn M. Chawgo