Patents Represented by Law Firm Haight & Hofeldt
  • Patent number: 4510969
    Abstract: A separable connector for use in conveying beverage concentrate from a pressurized source to a dispenser has the bias springs for valve actuation isolated from the concentrate. This feature, coupled with a removal of areas that can cause a congregation of concentrate and the use of relatively large flow path areas, provides a connector that has a minimum of blockage problems. Other important aspects of this connector include poppet valve structure, sealing arrangements, easy cleaning by back flow, a simple and effective engaging of connector sections, easy disassembly of connector sections and an interlock arrangement to insure a proper sequence for valve actuation.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: April 16, 1985
    Assignee: Alco Foodservice Equipment Company
    Inventor: Joseph J. Rodth
  • Patent number: 4494552
    Abstract: A monitoring electrode system is provided in which just two electrodes and their corresponding lead lines may be utilized for a monitoring unit, such as an ECG, having three input terminals and normally requiring signals from three electrodes. To achieve such a two lead system, a body tissue impedance simulating circuit is included to provide an automatic reference line signal at the third input terminal. Protection against high voltages and radio frequency interference is provided by various circuits, such as a high voltage protection circuit, a low pass filter network or an RF choke filter network. In the preferred embodiment hereof, a pair of electrodes are provided with a connecting plug which engages a corresponding connector at the end of a cable extending from the ECG monitor. Preferably, the body tissue impedance simulating circuit and any protective circuits are located in the connector at the end of the ECG cable.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: January 22, 1985
    Assignee: R2 Corporation
    Inventor: Roger L. Heath
  • Patent number: 4455721
    Abstract: An external clamping device for high pressure inflatable air bags utilizes opposed bracket members. An engaging structure, such as a set of teeth designed to grip the material of the inflatable air bag without damaging it, is formed adjacent one end of each of the bracket members. A stepped shoulder is formed at the other end of each of the brackets, so that when the opposing brackets are brought together the stepped shoulders abut one another to preclude pivoting of the bracket members during tightening. Tightening of the bracket members to firmly grip the air bag is achieved by a bolt threaded into openings intermediate the ends of the bracket members. When the bracket members are joined together, a connecting hole is formed for attaching the clamping device to a positioning arrangement.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: June 26, 1984
    Inventor: Howard Leibovitz
  • Patent number: 4449709
    Abstract: A game board having a plurality of spaces upon which a plurality of primary and secondary playing elements move. The structure of the primary elements is such that the secondary elements can be placed inside of them. In the center of the game board is placed a control device. The control device has a hingedly mounted spinner which controls the amount of movement of the playing elements. The control device further includes a means for ejecting the secondary elements from the primary elements.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: May 22, 1984
    Inventor: Robert McKay
  • Patent number: 4449719
    Abstract: A safety seal for a shaft passing through a housing. The seal is normally maintained in a non-sealing relationship to the shaft, but may be actuated during emergency conditions by levers. The seal includes an annular, split housing having a radially extending compartment which contains at least two seal members which are held together by a bias to define a seal annulus. The seal members are radially contracted into sealing engagement and expanded to a non-sealing position by cams or levers mounted in the seal members.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: May 22, 1984
    Assignee: John Crane Houdaille, Inc.
    Inventors: Jon J. Radosay, John R. Wilson
  • Patent number: 4445428
    Abstract: A cooking grill structure for utilizing the heat from deep fat fryers has a grill plate and a heat pipe extending into the cooking oil. Water is utilized as the liquid medium in the heat pipe, and condensation is distributed over the grill plate to provide uniform heating and prevent accumulated forces. Distribution is achieved by a relatively small channel that uniformly spreads the heat while preventing the production of unduly large pressure forces. To achieve greater transfer of heat from the cooking oil to the liquid medium in the heat pipe, heat transfer assistance approaches, such as fins or small diameter tubes to provide a flash boiler effect may be used. Also, more than one heat pipe may be used, and the grill plates may be interlocked to provide a continuous grill surface.
    Type: Grant
    Filed: November 3, 1982
    Date of Patent: May 1, 1984
    Inventor: J. Philip Buford
  • Patent number: 4419998
    Abstract: Physiological electrode systems are based upon the utilization of a single pair of electrode elements to provide for physiological function monitoring of a patient, electrical stimulation of the patient, and electrical therapeutic treatment of the patient. The monitoring instrument, the stimulating instrument and the therapeutic instrument may be connected to the electrode elements separately or in various combinations. Preferably, the electrode elements are provided as a disposable set which are connected to the various instruments through appropriate cables. These cables may be interrelated to permit combinations of the instruments to be simultaneously connected to the electrode elements, with suitable protection being provided to prevent the instruments from adversely affecting one another. Aspects of the cables and electrode sets may be utilized to provide separate monitoring, stimulating and therapeutic electrode systems.
    Type: Grant
    Filed: August 8, 1980
    Date of Patent: December 13, 1983
    Assignee: R2 Corporation
    Inventor: Roger L. Heath
  • Patent number: 4291546
    Abstract: A heat exchanger for fluids is disclosed in the form of a cold plate of the type utilized with ice cooled beverage dispensers. The cold plate has a heat conducting casting in which are embedded conduits for various liquids to be cooled, such as various flavored syrups, sweet water and carbonated water. One of the fluid conduits, such as that for the carbonated water, is formed of two tubular members, with a third tubular member interconnecting the first two tubular members. The first two tubular members are substantially planar with a convoluted or serpentine shape. The two tubular members are positioned as two layers, with the top layer or first tubular member adjacent to the top surface of the casting against which the ice is positioned.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: September 29, 1981
    Assignee: Alco Foodservice Equipment Company
    Inventor: Joseph J. Rodth
  • Patent number: 4290489
    Abstract: A pneumatic system includes a pneumatic motor, which may take the form of a vibrationless paving breaker utilizing a blow-striking member or hammer that is propelled to and from its force-transmitting or blow-striking position by a compressed gas. A valving arrangement provides for relatively large-ratio expansion of the compressed gas in the space under the hammer between its infeed thereinto and its exhaustion therefrom, in order to significantly utilize heat energy in the compressed gas to assist in energizing the propulsion of the hammer. Such heat energy is usually invested in the compressed gas by and during substantially adiabatic compression thereof at a gas-volume transformer, or compressor, included in the pneumatic system. It may be noted that the process of substantially adiabatic compression in the compressor is to a significant degree reversely duplicated in energizing the propulsion of the hammer.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: September 22, 1981
    Inventor: Charles Leavell
  • Patent number: 4270673
    Abstract: An electrically operated valve for effecting diffusion of a flow of pressurized diluent to substantially atmospheric pressure and mixing the diluent with a gravity flow of beverage concentrate in controlled proportions and dispensing a mixed beverage therefrom by gravity flow. Separate valving chambers are provided for the diluent and the concentrate flow and the valves are individually actuated by electric solenoids. A removable nozzle assembly is provided which includes a removable thin orifice plate for metering the flow of the concentrate for effecting complete mixing. A pressure responsive device is provided to give additional force biasing the concentrate valve to the closed position, thereby permitting the use of concentrates containing pulping liquid.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: June 2, 1981
    Assignee: Alco Foodservice Equipment Company
    Inventor: Joseph J. Rodth
  • Patent number: 4268926
    Abstract: A rescue tool with an extended hollow housing has the shaft of a tool bit mounted in one end thereof for reciprocable motion. A substantially solid hammer is manually driven to strike the tool bit, the hammer extending the greater portion of the length of the housing when striking the tool bit. Manual actuation of the hammer is achieved by means of a shroud having a handgrip on its outer surface, the shroud being secured to the hammer at the end away from the tool bit. The hammer may be locked with respect to the housing to provide a pry bar of two different lengths. Securing the hammer to prevent complete withdrawal of the hammer from the housing is achieved by an easily removable snap ring arrangement.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: May 26, 1981
    Assignee: Paratech Incorporated
    Inventor: George F. Roxton
  • Patent number: 4267947
    Abstract: A valve arrangement for a liquid flavoring additive under pressure, particularly a non-homogeneous liquid such as high pulp orange juice concentrate, utilizes a fluid pressure to assist in terminating discharge of the liquid flavoring. The fluid pressure may be achieved by utilizing the same compressed air utilized to force the liquid flavoring through the valve structure. Suitable controls, such as a three-way valve, may be utilized to apply the pressurized air to a diaphragm on which a valve member is carried when the valve is to be closed to preclude discharge of the liquid flavoring additive, and to remove the pressure on the diaphragm, such as by venting it to air, when it is desired to permit discharge of the liquid flavoring.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: May 19, 1981
    Assignee: Alco Foodservice Equipment Company
    Inventor: Henry Wasserstrom
  • Patent number: 4266726
    Abstract: In a beverage dispenser of the type having a diluent mixed with a syrup to produce the beverage to be dispensed, provision is made for utilizing a relatively high flow rate. To achieve the relatively high flow rate, a depressurizing system utilizing a vortex chamber is located at the output end of the valve arrangement. The flow path of the diluent through the valve arrangement before the depressurizing system is designed to minimize pressure drops. Diluent leaving the depressurizing system has its velocity decreased by a diffusing structure before being passed for mixing with the syrup. The diffusing system also decreases the swirl imparted to the diluent in the depressurizing system.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: May 12, 1981
    Assignee: Alco Foodservice Equipment Company
    Inventors: Wade R. Brown, Werner Mannhardt
  • Patent number: 4250039
    Abstract: A transmission filter has a filter envelope located inside a sealed rigid container, with an intake port and a corresponding intake opening to the interior of the filter envelope located at the bottom of the container. A suction outlet port at the top of the container conveys transmission fluid passing through the filter envelope to the suction line of the transmission system. The filter envelope is formed of thermoplastic fiber felt, with two sheets or layers of the felt being ultrasonically welded to provide a continuous fluid-tight seal for the filter envelope. Ultrasonic welding of the felt is achieved by an apparatus and method that is also useful in other types of ultrasonic welding of thermoplastic fabrics. An ultrasonic horn to be vibrated at an ultrasonic frequency is provided with a knurled surface corresponding to the area to be welded.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: February 10, 1981
    Assignee: Wire Cloth Products, Inc.
    Inventors: John F. Cozzi, Edward M. Maczko, Jr.
  • Patent number: 4244494
    Abstract: A dispensing assembly for discharging a flowing fluid into which a desired amount of an additive liquid has been inserted includes a container for the additive liquid which may be removed from a dispenser body. The container is normally positively biased to a closed condition to prevent escape of the additive liquid. Opening of the container is effected upon establishment of a predetermined minimum pressure by the flowing fluid in the dispenser body. Additive liquid is forced from the container into the flowing fluid by a metered amount of flowing fluid inserted into the container to cause a flexible pressure member to force the additive liquid from the container. Opening of the container is not achieved until after the pressure member is exerting a force on the additive liquid.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: January 13, 1981
    Assignee: Samuel Colgate, Robert Ramey and Associates, A Limited Partnership
    Inventors: Samuel D. Colgate, Robert A. Ramey
  • Patent number: 4212475
    Abstract: A self aligning, spiral groove, gas seal having a primary sealing ring and a mating sealing ring with opposed radially extending sealing faces, one of said rings having:(a) Spiral grooves extending inwardly from the outside diameter of the face of one of said rings, said grooves having a depth of between approximately 0.0001 and 0.0003 inches, said grooves extending across the face of said ring to provide a dam width ratio of between approximately 0.5 and 0.8 according to the formula ##EQU1## where GD is the diameter of a circle defined by the boundary of the grooved area and the ungrooved area in said face, ID is the internal diameter and OD is the outside diameter; and(b) Said ring has a balance of between 0.8 and 0.9 according to the formula ##EQU2## where OD is the outside diameter of the sealing interface, ID is the internal diameter and BD is the balance diameter.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: July 15, 1980
    Assignee: Crane Packing Co.
    Inventor: Josef Sedy
  • Patent number: 4190390
    Abstract: Disclosed is an apparatus for permitting automatic and manual machining of critical wear surfaces of railroad truck side frames. A fixture is rotatably mounted on a base. The railroad truck side frame is mounted on the fixture with the fixture and side frame in a first or vertical position. The side frame is first leveled vertically on the fixture with respect to leveling plates and then aligned horizontally before it is rigidly clamped to the fixture. Pivotably mounted gauges are then used to determine the exact location of the pedestal roof areas of the side frame with respect to the fixture, and this positional information from the gauges is manually transferred to adjustable stop dogs that engage limit switches that control the movement of a machining head. The fixture is then rotated and locked in that position.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: February 26, 1980
    Assignee: Trailer Train Company
    Inventors: Richard P. Yeates, Boris S. Terlecky, Jagdish K. Shah
  • Patent number: 4187600
    Abstract: Disclosed is an apparatus for machining the bolster bowl surface, the bolster pocket surfaces, the fulcrum pin hole surface and the bolster gib surfaces of railroad truck bolsters. The apparatus includes a base, a fixture mounted for rotation on the base and clamps on the fixture for clamping the bolster rigidly to the fixture. A locating template is utilized to properly position the bolster on the fixture, and once properly positioned and clamped, the fixture can be rotated and locked in a plurality of different positions to permit machining of the various surfaces. To machine the bolster pocket surfaces, the fulcrum pin hole surface, and the bolster gibs, a first machining (milling) head is provided that is movable along three perpendicular axes.
    Type: Grant
    Filed: September 26, 1978
    Date of Patent: February 12, 1980
    Assignee: Trailer Train Company
    Inventors: Richard P. Yeates, Boris S. Terlecky, Jagdish K. Shah
  • Patent number: D259725
    Type: Grant
    Filed: July 10, 1979
    Date of Patent: June 30, 1981
    Assignee: Alco Foodservice Equipment Company
    Inventors: Henry Wasserstrom, Edward Klein
  • Patent number: D275453
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: September 11, 1984
    Inventor: Jack D. Bankier