Patents Represented by Law Firm Prutzman, Hayes, Kalb & Chilton
  • Patent number: 4118965
    Abstract: An assembly is disclosed for quick and easy mounting and removal of a circular die in coaxial surrounding relation to a machine spindle and which features a one-piece diametrically expandable sleeve concentrically interposed in wedged engagement between the spindle and die and a bi-directional displacement means which includes a jack plate in overlying stacked relation to the spindle for driving the sleeve in opposite axial directions toward and away from an operating position, the operating position of the sleeve being in wedged engagement between the spindle and die to remove clearances therebetween and to promote concentricity of the circular die.
    Type: Grant
    Filed: July 21, 1977
    Date of Patent: October 10, 1978
    Assignee: The Hartford Special Machinery Company
    Inventor: Edward Gregory Grohoski
  • Patent number: 4118090
    Abstract: This invention relates to device comprising a plurality of movable electrically conductive contacts each having at least one contact surface. The contacts are movable in guide paths in response to application of forces to the contact surfaces. Elastomeric biassing means engage the contacts and bias the contacts to oppose forces applied to the contact surfaces. The elastomeric biassing means preferably comprises a moulded element of elastomeric material bonded to the contacts and restraining the contacts from leaving the guide paths. The contact surfaces can then be provided on one side of said element and terminals for connection to electrical leads can be provided by the contacts at the opposite side of the element.
    Type: Grant
    Filed: July 14, 1977
    Date of Patent: October 3, 1978
    Inventor: Luigi Giovanni Del Mei
  • Patent number: 4117701
    Abstract: This invention relates to a locking device having a latching element movable between a locking position and an inoperative position, operating means for moving the latching element, a blocking member movable to a blocking position for mechanically preventing the latching element from moving to its inoperative position. According to the invention, a plurality of thermally responsive elements are arranged or are individually bendable to form thermally responsive holding means for adopting a holding condition to temporarily hold the blocking member in the blocking position and, preferably, also to form thermally responsive safety means for normally adopting an inoperative condition.
    Type: Grant
    Filed: August 11, 1977
    Date of Patent: October 3, 1978
    Inventor: Luigi Giovanni Del Mei
  • Patent number: 4116572
    Abstract: A shaft clamping device is disclosed comprising an annular collar having a radial through slot. The collar has a recess and a coaxially aligned tapped opening respectively formed on opposite sides of the slot and which cooperate with a clamping screw for expanding or contracting the diameter of a clamping surface defined by the center opening of the collar. The collar recess includes a tapered diameter surface between an enlarged entrance of the recess and a clearance hole therein to provide a clamping screw bearing shoulder for seating a tapered diameter bearing surface of the clamping screw and providing for reduced stress concentration in a clamping collar of increased strength.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: September 26, 1978
    Assignee: Veeder Industries Inc.
    Inventors: Ernest J. Heldmann, Terry D. Capuano
  • Patent number: 4114664
    Abstract: Apparatus is provided for supporting and guiding a router for the purpose of routing an ornamental design in panels such as cabinet doors and drawer fronts. The router is attached to the end of a bar extending over the workpiece, the bar being slidable longitudinally in a carriage which in turn is movable on a rail extending at right angles to the bar. Adjustable stops are provided to limit movement of the bar and carriage so that the router may be guided in a rectangular path of movement of predetermined dimensions. Selectively usable templets are provided for changing the path of movement of the router, particularly at the corners of the predetermined rectangular path to vary the design being routed.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: September 19, 1978
    Assignee: The Stanley Works
    Inventor: Lawrence M. Cotton
  • Patent number: 4110973
    Abstract: A gas turbine engine power plant employing a water injection system having a water/fuel mixing device for injecting water into the engine fuel as it is conducted to the engine combustion chambers. The water/fuel mixing device employs a fuel conduit with a helical arrangement of water injection apertures for injecting water jets through the fuel to impinge upon the inside wall of the conduit and mix homogeneously with the fuel.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: September 5, 1978
    Assignee: Energy Services Inc.
    Inventors: Jack Haeflich, Peter C. Christman
  • Patent number: 4111190
    Abstract: A medical applicator assembly for a chain cystourethrographic procedure requiring only a single catheterization comprises a flexible intra-medic plastic tubing having a hollow longitudinal passage with coaxial proximal and distal openings at opposite ends, a metallic bead chain loosely and slideably positioned within the passage and having a soft tip secured to the proximal end of the chain, the tip comprising a stem portion slideably received within the proximal end opening of the passage and an integral head portion of larger diameter than the passage and of blunt tapered configuration and a flexible rod-like plunger of substantially smaller diameter than the passage for slideably displacing the chain relative to the tubing so as to dislodge the stem portion from the proximal opening of the tubing.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: September 5, 1978
    Inventor: Jane Plumridge
  • Patent number: 4112388
    Abstract: A laser aerodynamic window with different inside and outside gas stream components having effective stagnation indices of refraction corresponding to the indices of refraction of the gases on the opposite sides of the aerodynamic window so that the turbulent shear zones formed therewith respectively have substantially uniform stagnation indices of refraction for substantially eliminating unsteady laser beam distortion.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: September 5, 1978
    Assignee: United Technologies Corporation
    Inventor: George H. McLafferty
  • Patent number: 4111138
    Abstract: A sewing machine installation for sewing shirt front box hems and having a first underlying belt conveyor for individually conveying shirt front material blanks longitudinally forwardly along a lower main support table through a shirt front edge folder and a second overlying belt conveyor for individually conveying separate box hem material blanks with a liner tape longitudinally forwardly along an upper auxiliary table section through a box hem edge folder and into superimposed preassembled association with the prefolded shirt front blanks; the overlying and underlying conveyors thereafter cooperating for conveying the preassembled shirt front box hems longitudinally forwardly along the main support table through sewing and shearing stations for sewing the preassembled shirt front box hems and shearing excess material from the leading and trailing edges thereof.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: September 5, 1978
    Assignee: Cluett, Peabody & Co. Inc.
    Inventors: John L. Rockerath, Harold J. Schreck
  • Patent number: 4109432
    Abstract: Several embodiments of an extruded plastic rim strip for holding the panes of a double pane insulating glass in spaced parallel relationship and having a chamber with a moisture absorbent material intermediate the panes and a surface layer of adhesive extruded therewith for securing the rim strip to the panes and provide a seal therebetween.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: August 29, 1978
    Inventor: Reiner Pilz
  • Patent number: 4107992
    Abstract: A fuel dispensing system having a positive displacement vane type fuel meter with an enclosed rotor assembly mounted within a fluid tight housing and connected to a fluid inlet and outlet of the housing to be rotated in direct proportion to the volume of gasoline conducted through the meter and two alternative embodiments of electrical pulse generating means with two Hall effect pickups mounted externally of the housing, ferromagnetic plugs extending through the housing and ferromagnetic means mounted on the rotor assembly to cooperate with the ferromagnetic plugs to generate an electrical pulse with each pickup for each predetermined increment of gasoline conducted through the meter.
    Type: Grant
    Filed: February 4, 1977
    Date of Patent: August 22, 1978
    Assignee: Veeder Industries, Inc.
    Inventors: Coates F. Bateman, Louis Soltanoff
  • Patent number: 4109222
    Abstract: A plurality of contact pins project from a flat header of a miniature relay for connection to a corresponding number of coaxial cables. A separate radio frequency adaptor is provided having a plurality of hollow cable connector receiving shells and a planar supporting base interconnecting the shells with the shells serving as RF shields for the header pins.The process of making the RF relay assembly includes mounting the header pins in a predetermined layout on the relay header, forming a one-piece adaptor by interconnecting the tubular shells in a pattern corresponding to the header pin layout and then securing the one-piece RF adaptor to the relay header with each header pin in a complementary shell and with each shell made common with electrical ground.
    Type: Grant
    Filed: November 14, 1975
    Date of Patent: August 22, 1978
    Assignee: HI-G Incorporated
    Inventors: Paul A. Frano, Robert W. Bowman, Donald F. Drapeau, Marino Kain
  • Patent number: 4103421
    Abstract: A cutting blade holding handle for a segmented removable blade.A cutting blade holding handle having a rectilinear hollow body with curved outer faces and having an inner guide consisting of two identical grooves facing each other to slidably mount a removable blade and a lower parallel auxiliary groove which mounts a unitary slider connected to the blade and having a finger piece provided with two oppositely inclined faces for manipulating the blade, said body also having between the blade and its rear face a blade wedging mechanism having external control and latching means.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: August 1, 1978
    Assignee: Stanley-Mabo S.A.
    Inventor: Michel Quenot
  • Patent number: 4104711
    Abstract: An airport light fixture is designed to withstand the severe vibrations and high wind velocity encountered in the take-off and landing operations of jet aircraft. The light fixture includes a pedestal and lamp base provided with spherical portions of different curvature which engage only at peripheral mating surfaces. When the lamp base and pedestal are clamped together, e.g., by a set of bolts, considerable pressure is exerted between the spherical portions to hold the pedestal and lamp base in firm engagement at the peripheral mating surfaces. In addition, the light fixture includes an improved lens mounting arrangement to firmly secure its lens on the lamp base and yet permit the lens to be conveniently removed for repair of the light fixture.
    Type: Grant
    Filed: May 25, 1977
    Date of Patent: August 1, 1978
    Assignee: Connecticut International Corporation
    Inventor: Herbert F. Carter
  • Patent number: 4102234
    Abstract: A harness is provided for securely holding a conventional plectrum or pick in firm engagement with a guitar player's thumb, the harness consisting of a simple flexible and resilient strap contoured to fit around the thumb in advance of the first knuckle and being provided with a central portion which is slit to receive and hold the pick firmly against the undersurface of the thumb with the pointed end of the pick protruding through one of the slits into playing position.
    Type: Grant
    Filed: March 30, 1977
    Date of Patent: July 25, 1978
    Inventor: Walter G. Brundage
  • Patent number: 4102428
    Abstract: A seismic explorative system for wilderness areas is described having a nonincendiary high core load linear detonating cord as the seismic energy source. The cord rests on the earth's surface in essentially an uncovered condition and comprises an elongated core of detonating explosive having a core load of about 100-400 grains per foot, an encircling layer consisting essentially of flame quenching particulate material adjacent the core along its entire length, a textile covering circumscribably confining both the core and the encircling layer and a fire retardant outer sheath protectively enclosing the textile covering.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: July 25, 1978
    Assignee: Ensign-Bickford Company
    Inventors: Stanley R. Kelly, John P. O'Brien, William C. Morrow
  • Patent number: 4101855
    Abstract: A miniature relay having an electromagnet assembly including a coil carried by a magnetic frame member which assembly is supported on a non-magnetic coil support member which in turn is secured to a header containing an arrangement of stationary and movable contacts and terminal pins. The magnetic frame member includes a core extending through and slightly beyond the coil and a pole piece outwardly adjacent the coil. An armature is held in position by the cooperation of spaced-apart holding elements depending from the electromagnet assembly which saddle a recess area in the armature, and a return spring carried by the header continuously urges the armature into saddle defined by the holding elements. The pull-in force of the electromagnet is enhanced by a mating tab and notch configuration of the pole piece and armature or by an end portion of the pole piece disposed to present increased surface area facing the armature.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: July 18, 1978
    Assignee: Hi-G Incorporated
    Inventor: Donald R. Drapeau
  • Patent number: 4100903
    Abstract: The disclosed liquid fuel injection pump is suited for the delivery of measured charges of liquid fuel under high pressure sequentially to the cylinders of an associated engine and includes a free piston type plunger reciprocably mounted in a pump chamber, wherein the charges are pressurized to high pressure, a stop for the pump plunger to limit the maximum volume of the chamber, a hub mounting a plurality of rollers to engage the camming surface of a tappet interposed between the plungers and the rollers to drive the pump plungers in a direction to reduce the volume of the pump chamber, and hydraulic means to power said pump plunger in the opposite direction.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: July 18, 1978
    Assignee: Stanadyne, Inc.
    Inventor: Vernon D. Roosa
  • Patent number: 4099311
    Abstract: A composite roll with an inner core, an outer roll ring and an intermediate annular arrangement of axially extending tapered wedges having axially spaced radially inward and outward projections engaging the inner core and outer roll ring.
    Type: Grant
    Filed: February 11, 1977
    Date of Patent: July 11, 1978
    Inventor: Uwe Kark
  • Patent number: RE29758
    Abstract: A sewing machine installation with a reinforced hem forming device for automatically forming a hem, reinforced by an integrated reinforcing strip, along an edge of a material blank as the blank is conveyed forwardly through the forming device to a stitching station.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: September 12, 1978
    Assignee: Cluett, Peabody & Co., Inc.
    Inventors: John L. Rockerath, Harold J. Schreck