Patents Represented by Attorney David E. Dougherty

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  • Miniaturized electromagnetic relay
    Patent number: 4420733
    Abstract: A miniaturized electromagnetic relay having a yoke-coil-armature-return spring assembly and contact bearing blades arranged to be inserted into an insulating monolithic supporting structure. The support structure is formed by a front wall and a partition wall perpendicularly projecting therefrom for separating the front wall into two portions, with one of said portions being effective to receive the yoke-coil-armature assembly and the related return spring, and the other portion being effective to receive the contact bearing blades.The partition wall is provided with a C-shaped cross-section having guiding and supporting means for said yoke-coil-armature assembly and related return spring. The upper portion of the front wall is provided with two sets of slots separated from one another by a partition member for receiving the contact bearing blades therein.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: December 13, 1983
    Assignee: AMF Incorporated
    Inventor: Fabio V. Palandri
  • Ground conductor monitoring system
    Patent number: 4415850
    Abstract: A monitoring system for continuously monitoring the ground conductor of an electrical cable having power conductors and a pilot wire in addition to the ground conductor. An a.c. test signal is connected onto a loop comprised of the ground conductor and pilot wire and a terminating impedance. A current transformer samples the test signal on the ground conductor and checks its magnitude. By making the transformer impedance considerably lower than the mutual inductance between the ground conductor and pilot wire, large, expensive blocking impedances are not required to prevent the test signal from following sneak paths from the test loop to earth ground.
    Type: Grant
    Filed: February 12, 1981
    Date of Patent: November 15, 1983
    Assignee: AMF Incorporated
    Inventor: John R. Sherwood
  • Defrost control system and display panel
    Patent number: 4411139
    Abstract: A defrost control system is provided for initiating one or more (defrost) timing cycles each at a preselected different time and for terminating the cycles at the end of their respective predetermined (defrost) periods. The unit generally includes a solid-state, microprocessor based, programmable twenty-four hour timer, and a display panel having an electrooptical digital time display and two sets of defrost status/program indicators. The two sets of defrost indicators are separately or concurrently activated to visually present a display indicative of a plurality of program and operating status events, for example, the occurrence of an automatic or manual defrost initiation.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: October 25, 1983
    Assignee: AMF Incorporated
    Inventor: Peter J. Bos
  • Twin needle with adjustable throat plate and feed plate
    Patent number: 4407210
    Abstract: In a twin needle tacker in which one needle/bobbin assembly is movable relative to the other to change the space between the tacks, a feed plate assembly and a throat plate assembly each having one plate movable relative to the other for realigning the slots of the feed plate assembly and the needle holes of the throat plate assembly with the needles; and a twin knife mechanism operatively interconnected having a first cutting means mounted on the bottom of one throat plate and the other cutting means mounted on the bottom of the other throat plate.
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: October 4, 1983
    Assignee: AMF Incorporated
    Inventors: Wilhelm H. Jung, George P. Diacont, Jr.
  • Sealing assembly for a geophysical cable connector
    Patent number: 4398781
    Abstract: A sealing assembly for use in a geophysical cable connector having two interconnecting bodies each having a plurality of coacting electrical connectors and a cover connected to each body by a plurality of screws. A bladder gasket is positioned between each body and each cover with a plurality of openings around the outer periphery for receiving the screws. The gasket includes a sealing ridge extending outwardly from one side of the gasket entirely around the gasket and spaced inside the opening. Each body includes a recess inside of the screws for receiving the sealing ridge. The gasket is enclosed inside of the ridge for sealing the interior of the body from the environment. The sealing ridge may be semi-circular shaped or trapezoidal shaped in cross section.
    Type: Grant
    Filed: October 9, 1981
    Date of Patent: August 16, 1983
    Assignee: AMF Incorporated
    Inventor: Petre F. Dan
  • Proofer tray assembly having stepped release coating retaining surfaces
    Patent number: 4398880
    Abstract: A proofer tray assembly with a circular cup having a stepped configuration providing a series of substantially horizontal annular surfaces forming ledges for retaining a dough release agent such as sifted flour or sprayed oil.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: August 16, 1983
    Assignee: AMF Incorporated
    Inventor: Samuel O. Seiling
  • Pocket positioning apparatus
    Patent number: 4395960
    Abstract: Apparatus in conjunction with a twin needle tacker to facilitate loading and simultaneously tacking both ends of a rear or hip pocket opening.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: August 2, 1983
    Assignee: AMF Incorporated
    Inventor: Wilhelm H. Jung
  • Polymer alloy coating for metal substrate
    Patent number: 4396658
    Abstract: A novel polymer alloy coating is provided consisting essentially of polyphenylene sulfide and an amount of polyimide. The polyimide is produced by the crosslinking and curing of an acetylene terminated aromatic polyimide oligomer resin. The amount of polyimide utilized is sufficient to enhance the adhesiveness of the polyphenylene sulfide to a metal substrate without substantially changing the melt flow properties, chemical resistance and thermal stability of the polyphenylene sulfide. A polymer alloy resin composition is also provided for application to the metal substrate to produce the polymer alloy coating. The novel polymer alloy coating is particularly suitable for coating pipes, particularly pipe couplings for oil and gas well production pipes which are exposed to extreme temperatures, pressures and corrosive environments.
    Type: Grant
    Filed: March 5, 1982
    Date of Patent: August 2, 1983
    Assignee: AMF Incorporated
    Inventors: Hal J. Mettes, Barnard P. E. Goodman
  • Method of making lap seams
    Patent number: 4395963
    Abstract: A method of making lap seams by providing a constant overlap of the cut edge portions of two pieces of material to be joined together by a seam, stabilizing the overlapping material to prevent relative movement therebetween, rotating the overlapping material causing each piece of material to fold over the cut edge of the other piece of material to form the lap seam, and providing a double row of stitches each extending along a different one of the folded edges of the seam.
    Type: Grant
    Filed: April 3, 1981
    Date of Patent: August 2, 1983
    Assignee: AMF Incorporated
    Inventors: George P. Diacont, Jr., James D. Grisham
  • Defrost control system
    Patent number: 4395887
    Abstract: A defrost control system is provided for initiating one or more (defrost) timing cycles each at a different time and for terminating the cycles at the end of their respective predetermined (defrost) periods. The unit generally includes a solid-state, microprocessor based, programmable twenty-four hour timer, and a display panel. The system also includes a proportional defrost module which measures the absolute humidity of the atmosphere and adjusts the defrost initiate time(s) in accordance therewith.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: August 2, 1983
    Assignee: AMF Incorporated
    Inventor: James D. Sweetman
  • Belt loop folder and feed apparatus
    Patent number: 4393800
    Abstract: A loop folder and feed apparatus for a drop belt loop tacker comprising means for folding both ends of the belt loop with the folded upper end extending past the fold of the lower end to provide an exposed tab or flag to be sewn, stabilizer means for clamping the loop during folding and the folded loop being clamped by the folding means while being presented to the stitching station of the tacker.
    Type: Grant
    Filed: September 10, 1981
    Date of Patent: July 19, 1983
    Assignee: AMF Incorporated
    Inventor: Francis B. Hargett
  • Snap action switch
    Patent number: 4394553
    Abstract: A micro-switch having an actuating mechanism comprising a pusher bearing directly on a conductive contact carrying spring blade which is trap mounted and pivotable at an anchor point distal from said contact(s), and a lever actuator hinge mounted to the switch case by means of laterally projecting trunnions having flat portions which are pivotable on fulcrum pivot points formed integrally in spaced axially aligned alcove portions in the switch case.
    Type: Grant
    Filed: April 23, 1981
    Date of Patent: July 19, 1983
    Assignee: AMF Incorporated
    Inventor: Paul G. Feil
  • Rotary drum dough divider
    Patent number: 4391576
    Abstract: A rotating drum divider and an improved assembly for use in a cylinder of the rotating drum type dough divider comprising a sleeve positioned in the cylinder forming seals on both sides of a pair of diametrically opposed guide slots connected to atmosphere and a pair of ducts communicating with the cylinder at opposite ends of the sleeve which are alternately connected to pressure and vacuum, a double acting piston having a head in each end of the cylinder and a piston rod portion extending from each head into the sleeve, and a scaling rod joining the adjacent ends of the piston rod portions together, and reciprocating to cause the rod portions and their heads to reciprocate together in the cylinder as a double ended piston.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: July 5, 1983
    Assignee: AMF Incorporated
    Inventor: Donald L. Cummins
  • Molecular separation column and use thereof
    Patent number: 4384957
    Abstract: A molecular separation chromotography column for effecting the differential distribution, between two phases, of the components of a sample flowing therethrough. The column contains a substantially homogeneous solid stationary phase which comprises a porous matrix of fiber having particulate immobilized therein, wherein at least one of said fiber or particulate is effective for molecular separation. The column is characterized by a reduced pressure drop, increased axial dispersion, more uniform peak shapes and better separations at high sample loading.
    Type: Grant
    Filed: July 28, 1981
    Date of Patent: May 24, 1983
    Assignee: AMF Incorporated
    Inventors: Alvin L. Crowder, III, Nils L. Dailey, Joseph V. Fiore, Kenneth C. Hou, Paul J. Marinaccio, Eugene A. Ostreicher
  • Method and apparatus for testing and using membrane filters in an on site of use housing
    Patent number: 4384474
    Abstract: An improved method and apparatus for controlled pressure testing at least one membrane filter in an on site of use housing, and to simultaneously test a plurality of membrane filters in a covered common housing at the site of use to independently determine by visual flow indicators if each filter is acceptable for use or is defective.
    Type: Grant
    Filed: May 20, 1981
    Date of Patent: May 24, 1983
    Assignee: AMF Incorporated
    Inventor: V. Walter Kowalski
  • Low profile relay
    Patent number: 4383232
    Abstract: A miniature low profile relay having discrete bobbin and stationary contact block sections mechanically affixed together. A closed-loop pusher member having a window portion is interposed between the bobbin and stationary contact block sections. A tongue portion of the stationary contact block section extends through the window of the pusher for being received in force-fit within a recess portion of the bobbin section. An E-core having a center arm which extends through the bobbin section with a protruding end portion and having two outer arms having end portions, with each end portion being received in a slot of the contact block section.
    Type: Grant
    Filed: October 23, 1981
    Date of Patent: May 10, 1983
    Assignee: AMF Incorporated
    Inventor: Walter J. Richert
  • Apparatus for manufacture of jigs
    Patent number: 4379666
    Abstract: In the formation of the components of a jig for profile stitching of garment parts, a profile formed in one component is used to create associated profiles in a second component and subsequently one of the associated profiles of the second component is used to create a related profile in the first component.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: April 12, 1983
    Assignee: AMF Incorporated
    Inventors: John A. Rose, Keith Dyer
  • Electromagnetic contactor
    Patent number: 4378542
    Abstract: An electromagnetic contactor having a box shaped frame DC solenoid, a plunger with one end attached to a stamped metal bracket which, in turn, is attached to a pusher assembly. The pusher assembly includes the movable contacts. As the solenoid plunger is extended and retracted, the contacts associated with the assembly will engage and disengage in response thereto. The solenoid is mounted in a base and is biased up against the carrier by a curved spring washer. The coil terminals are part of the solenoid and are trapped or contained between guide walls of the base to provide strain relief. The coil terminals are not rigidly attached to the base so as to allow the solenoid to float and to prevent fatigue of the terminals.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: March 29, 1983
    Assignee: AMF Inc.
    Inventor: Paul G. Feil
  • Door closer
    Patent number: 4366595
    Abstract: An automatic motorized door closure having an arm freely movable on a motor shaft in response to opening a door and after a time delay being connected to the motor shaft and automatically moving the door to a closed position.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: January 4, 1983
    Assignee: AMF Incorporated
    Inventor: James D. Elliott
  • Combined front and rear fenders, chain guard, engine cover and fuel tank for moped
    Patent number: D269772
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: July 19, 1983
    Assignee: AMF Incorporated
    Inventor: Daniel G. Hahn