Patents by Inventor William Kahan

William Kahan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4361101
    Abstract: A button attaching device is provided with a bifurcated needle holding member which can be utilized to adjust the spacing between a pair of needles, and with a needle cover which attaches to the bifurcated member to protect one from injury by the needles and form a unit that can be conveniently carried on the person of a user.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: November 30, 1982
    Assignee: The Singer Company
    Inventors: Walter H. W. Marsh, William Kahan
  • Patent number: 4188902
    Abstract: A bobbin thread run-out detector having a light source and means for directing a beam of light toward a set of retro-reflecting reflectors on the bobbin and toward a reference reflecting spot on the loop taker. Bobbin thread wound around the bobbin is interposed between the light source and the retro-reflecting reflectors. When a sufficient quantity of thread has been consumed to expose the indentations to the source of light, the light is reflected to a photodetector. Light from the source is also intermittently reflected onto the photodetector by the reflecting spot on the loop taker during each revolution of the loop taker. An electronic circuit compares the light received by the photodetector from the bobbin with the light received from the reflecting spot on the loop taker. When the quantity of light reflected from the bobbin changes relative to the quantity of light reflected from the loop taker a low bobbin thread alarm is activated to warn the operator of the impending exhaustion of bobbin thread.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: February 19, 1980
    Assignee: The Singer Company
    Inventor: William Kahan
  • Patent number: 4040277
    Abstract: An electronic home knitting machine which functions pursuant to patterning instructions on a program card and in response to the operation of control devices by an operator causing needle actuators on the carriage of the machine to be selectively operated and fabric unit in a prescribed manner on the machine is provided with an acutely discriminating adaptive card reader for detecting instruction marks on the card and means operable to indicate to an operator an error in the reading of the card.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: August 9, 1977
    Assignee: The Singer Company
    Inventors: William Kahan, Fredrick Alexander Rupinski, John Francis Wagner, Thomas Richard Peer
  • Patent number: 4036035
    Abstract: A home knitting machine is provided with electronic control means which function pursuant to patterning instructions on a program card and in response to the operation of control devices by an operator causing needle actuators on the carriage of the machine to be selectively operated and fabric knitted in a prescribed manner on the machine.BACKGROUND OF THE INVENTION1. Field of the InventionThe invention relates to automatic knitting machinery and has particular application to home knitting machines which can be programmed to produce prescribed patterns on a fabric.2. Description of the Prior ArtAutomated home knitting machines are now well known and are exemplified by the machines of the following Patents and applications:U.s. pat. No. 3,885,405 -- issued May 27, 1975French Pat. No. 2,212,830 -- Reg. July 23, 1972Japanese Application No. 85853, laid open Nov.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: July 19, 1977
    Assignee: The Singer Company
    Inventors: William Kahan, John Vernon Landau, Jr., Howard David Rogers, Fredrick Alexander Rupinski, Thomas Richard Peer, Martin David Brennan
  • Patent number: 4015445
    Abstract: A home knitting machine is provided with electronic control means which function pursuant to patterning instructions on a program card and in response to the operation of row controlling switch means by an operator causing needle actuators on the carriage of the machine to be selectively operated and fabric knitted in a prescribed manner on the machine.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: April 5, 1977
    Assignee: The Singer Company
    Inventors: William Kahan, Thomas Richard Peer
  • Patent number: 4006611
    Abstract: A home knitting machine is provided with a reader for reading out patterning instructions on a programmed card, an electronic memory for storing signals read from the card, means enabling an operator to select a needle to knit a particular column of a design unit and to thereby fix the overall position of a design in a width of fabric to be knit, and means for recalling the stored signals from the memory in synchronization with movement of the carriage during knitting and for causing the operations of needle selectors on the carriage in accordance with the recalled signals.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: February 8, 1977
    Assignee: The Singer Company
    Inventors: William Kahan, Howard D. Rogers, Fredrick A. Rupinski
  • Patent number: 3991592
    Abstract: A home knitting machine is provided with electronic control means which function pursuant to patterning instructions on a program card and in response to the operation of control devices by an operator causing needle actuators on the carriage of the machine to be selectively operated and fabric knitted in a prescribed manner on the machine.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: November 16, 1976
    Assignee: The Singer Company
    Inventors: William Kahan, Fredrick Alexander Rupinski, Barney Dean Hunts, Howard David Rogers, John Francis Wagner, John Vernon Landau, Jr.
  • Patent number: 3983718
    Abstract: The carriage of a home knitting machine is provided with a reader operable independently of any movement of the carriage of the machine for reading out patterning instructions on a programmed card prior to knitting, an electronic memory for storing the signals read from the card, and means for recalling the stored signals from the memory in synchronization with movement of the carriage during knitting and for causing the operation of needle selectors on the carriage in accordance with the recalled signals to provide for the formation in a fabric of a pattern defined on the card.
    Type: Grant
    Filed: September 12, 1975
    Date of Patent: October 5, 1976
    Assignee: The Singer Company
    Inventors: William Kahan, Howard D. Rogers, Frederick A. Rupinski