Patents Assigned to The Singer Company
  • Top work feeding arrangement for a chain stitch sewing machine
    Patent number: 4497268
    Abstract: A hand operable chain stitch sewing machine is provided with a top work feeding arrangement wherein a feed dog is mounted for pivotal movement about mutually perpendicular axes. The feed dog is moved about one such axis to engage a workpiece, and about the other axis to displace a work piece relative to a sewing needle.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: February 5, 1985
    Assignee: The Singer Company
    Inventor: Karl H. Killinger
  • Buttonhole foot and shank assembly
    Patent number: 4494471
    Abstract: A presser foot with a grooved sole plate for use in the formation of buttonholes on a sewing machine is pivotally mounted on a screw with which the foot can be moved laterally relative to the shank to position a groove dividing ridge with respect to a sewing needle.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: January 22, 1985
    Assignee: The Singer Company
    Inventor: Thaddeus J. Zylbert
  • Balanced armature winding for motors
    Patent number: 4495430
    Abstract: The back EMF generated in armature coils is substantially balanced by causing the coils located a greater distance from the axis of rotation of the armature to have fewer turns than the coils located closer to the armature axis of rotation. Alternatively, rather than decrease the number of turns in the coils, the same balancing affect can be achieved by increasing the electrical resistance of the coils located a greater distance from the armature axis of rotation.
    Type: Grant
    Filed: June 22, 1979
    Date of Patent: January 22, 1985
    Assignee: The Singer Company
    Inventors: John A. Herr, Wolfgang Jaffe
  • Fiber optic sensor for shaft state
    Patent number: 4493997
    Abstract: A shaft state sensor includes a rotating member having a miniaturized lamp mounted thereto. A rotary transformer is connected to the lamp and supplies it with power. A number of optic fibers are arranged in a circular configuration on a stationary member of the sensor. The center of the circular configuration is coaxial with the shaft of the rotating member. As the shaft turns, the lamp becomes sequentially aligned with each of the fibers thereby indicating changes in shaft position. The fibers are connected to an optical coupler which is in turn connected to an optical density discriminator for detecting when the light passing through a particular optic fiber exceeds the required threshold level. The output from the discriminator is optical and may travel over substantial cable distances to a computer location without the introduction of electrical noise so that shaft position or velocity may be computed.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: January 15, 1985
    Assignee: The Singer Company
    Inventor: Arnold Schindel
  • Method of molding a sewing machine frame of fiber reinforced composition
    Patent number: 4493808
    Abstract: A sewing machine bed having main and open channel sections is molded of glass reinforced thermosetting plastic composition which is injected into the mold through a side gate located opposite the juncture of the main and channel sections providing advantageous fiber orientation resulting in dimensional stability and freedom from warpage.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: January 15, 1985
    Assignee: The Singer Company
    Inventors: Robert Sedlatschek, Leo E. McGann
  • Combination needle and accessory driving stud
    Patent number: 4493279
    Abstract: A sewing needle in which an elongated locator portion is provided extending transversely from the shank and of a length to extend from a retaining means fixing the sewing needle to the needle bar, sufficiently and in a direction to permit its use as an accessory driving stud.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: January 15, 1985
    Assignee: The Singer Company
    Inventor: Charles R. Odermann
  • Weather radar simulator
    Patent number: 4493647
    Abstract: A beam position processor (15) generates address signals representing the spatial coordinates of points on a simulated radar beam, for a plurality of beam directions. The address signals serve for readout of weather information (e.g. cloud intensity, ceiling and base height data) from a data storage means (16) for further processing to form a video signal for display. The storage means (16) is arranged for economy of memory capacity in that the higher order parts of the address are used to read out code words from a database memory (17). Each code word selects one of a set of predetermined cloud patterns in cloud pattern memories (18, 19) and the lower order parts of the address access data corresponding to individual cells of the selected pattern.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: January 15, 1985
    Assignee: The Singer Company
    Inventor: Dennis A. Cowdrey
  • Overload protection in a motor control system
    Patent number: 4490656
    Abstract: A microcomputer-based motor control system provides overload protection by incrementing a register whenever a full power condition exists and decrementing the register when less than a full power condition exists. When the register reaches a predetermined value, this indicates an overload condition.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: December 25, 1984
    Assignee: The Singer Company
    Inventor: Bruce E. Arnold
  • Terminal for flexible tube
    Patent number: 4489961
    Abstract: Flexible tubing for use in connecting a pneumatic foot controller to a sewing machine is provided at one end with a detachable plastic connector including a tight fitting tube supporting sleeve and a serrated end fitting which is locked in place in the tubing with the sleeve.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: December 25, 1984
    Assignee: The Singer Company
    Inventor: Manfred R. Laidig
  • Thermally responsive slam shut valve assembly
    Patent number: 4488566
    Abstract: A thermally responsive slam shut valve assembly includes a generally tubular body member having an internal valve seat at one end, a spider member connected to the other end of the body member, a cup shaped valve inside the body member, a valve stem connected to the valve and extending through a central opening in the spider member, a coil spring surrounding the stem between the valve and the spider member, and fusible means surrounding the stem outside the body member for preventing the valve from moving into sealing contact with the valve seat until the temperature of the fusible means goes above a predetermined threshold.
    Type: Grant
    Filed: June 22, 1983
    Date of Patent: December 18, 1984
    Assignee: The Singer Company
    Inventor: Irwin A. Hicks
  • Replaceable hook point and needle guard for sewing machine loop taker
    Patent number: 4488499
    Abstract: A sewing machine loop taker is disclosed having a replaceable adjustable hook beak and needle guard fabricated as a integral element in which the dimensional relationships established in fabrication are not influenced by the means for securing or the provisions for adjustment of the element relatively to the loop taker.
    Type: Grant
    Filed: December 2, 1981
    Date of Patent: December 18, 1984
    Assignee: The Singer Company
    Inventors: Anthony Giaimo, Thaddeus J. Zylbert
  • Circuitry for controlling the reflected torque on a generator driven by a fluid meter
    Patent number: 4489290
    Abstract: The output of an electrical generator driven by a meter is coupled to a load through circuitry for limiting the reflected forces placed on the meter.
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: December 18, 1984
    Assignee: The Singer Company
    Inventor: Richard C. Warner
  • Power spray nozzle with fluidic oscillator
    Patent number: 4488329
    Abstract: A power spray nozzle using a single fluidic oscillator to disseminate liquid, selectively and cyclically, from one end of a floor brush to the other and return.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: December 18, 1984
    Assignee: The Singer Company
    Inventor: Elliot A. Lackenbach
  • Internal gate rotary vane fluid meter with controlled rotor vane inner diameter
    Patent number: 4487064
    Abstract: An internal gate rotary vane fluid meter which has markedly improved performance as a result of precise control over the geometry and dimensions of the rotating elements and the fluid flow path. In particular, the fluid meter has a gate with at least two pockets which rotates at the same velocity as a rotor having the same number of vanes and the inner diameter of the rotor vanes is controlled to provide a properly sized orifice between the vane inner diameter surface and the gate hub so as to provide a driving torque to the gate due to the passage of the vanes through the gate pocket, the gate driving torque being balanced to match gate retarding torques due to fluid dynamic losses, friction of the gate drive train and friction of the gate bearings.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: December 11, 1984
    Assignee: The Singer Company
    Inventor: Irwin A. Hicks
  • Force amplifying arrangement for sewing machine pushbutton control
    Patent number: 4487141
    Abstract: A sewing machine pushbutton control is provided in a floating extension with a toggle which assists the movement of a plurality of cam followers into operative engagement with buttonhole controlling cams and actuating mechanism for a needle bar and feed regulator.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: December 11, 1984
    Assignee: The Singer Company
    Inventor: William Weisz
  • Method of checking the integrity of a source of additional memory for use in an electronically controlled sewing machine
    Patent number: 4488300
    Abstract: In an electronically controlled sewing machine which has the capability of accepting plug-in modules consisting of read only memories, a method is provided for checking the integrity of the module memory and the means for coupling the memory to the sewing machine controller. The controller reads the first two locations in the memory to check for the presence of alternating patterns of ones and zeros which indicate that shorted or open data lines are unlikely. Another location in the memory contains the number referred to as a checksum. The controller adds the contents of all the other locations of the module memory to this checksum. If the module is undamaged, this sum will be zero. If the sum is not zero, the controller recognizes that a faulty module has been inserted and advises the operator accordingly.
    Type: Grant
    Filed: December 1, 1982
    Date of Patent: December 11, 1984
    Assignee: The Singer Company
    Inventors: Leonard I. Horey, Marvin Kurland
  • Bobbin case chain stitch insert
    Patent number: 4487142
    Abstract: A chain stitch insert receivable in the bobbin case of a sewing machine is formed with a topside ledge which captures and consumes thread as a hook point carries a loop of thread around the bobbin case. The ledge enables the formation of chain stitches without the need for a special eyelet on the machine.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: December 11, 1984
    Assignee: The Singer Company
    Inventors: Donald Rodda, Charles R. Odermann
  • Method of forming a sewing machine hook assembly
    Patent number: 4486940
    Abstract: A method is disclosed for fabricating and assembling a sewing machine hook shaft and hook body by which the required critically accurate shapes may be attained in a particularly cost effective manner.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: December 11, 1984
    Assignee: The Singer Company
    Inventors: Giuseppe Valori, Marco Primati, Victor G. Stevens
  • Thread cutter in sewing machine face plate
    Patent number: 4485755
    Abstract: A manual thread cutter for a sewing machine is disclosed in which a cutting blade is supported on a canted surface merging toward the corner of the hollow interior of a face plate covering the head end of the sewing machine. A slot extends continuously through adjacent walls of the face plate approximately medially of the canted surface so that sewing thread may be drawn through the slot to the cutting edge of the cutting blade. A platform extends from one of the adjacent walls coextensive with the bottom surface of the slot so that thread may be pivoted about the platform and drawn into the slot to impinge upon the cutting edge of the cutting blade.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: December 4, 1984
    Assignee: The Singer Company
    Inventors: Walter H. W. Marsh, Kenneth D. Adams
  • Combined sewing machine and work support extension
    Patent number: D276614
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: December 4, 1984
    Assignee: The Singer Company
    Inventors: George D. La Police, Michael P. Ballone