Patents by Inventor Charles T. Brown

Charles T. Brown 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: 7024910
    Abstract: A self-contained stock lifter is particularly adapted for use in multiple station, progressive metal forming dies and the like, and includes a base plate with two vertical through holes adjacent opposite sides, and a vertical spring unit aperture located between the through holes. The stock lifter also includes a lifter bar having two vertical through holes in vertical registry with the base plate through holes. Two rigid guide shafts are mounted in the base plate through holes to permit the lifter bar to reciprocate in a manner which selectively lifts stock in the die to permit longitudinal shifting of the stock along the multiple die stations. A spring unit has a base retained in the spring unit aperture, and a reciprocating rod biased outwardly, with a free end abutting a central portion of the lifter bar to shift the lifter bar to an extended position, thereby defining a fully self-contained unit that can be readily mounted in and removed from the die to reduce manufacturing and repair costs.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: April 11, 2006
    Assignee: Pyper Tool & Engineering, Inc.
    Inventors: Joel T. Pyper, John K. Pyper, Scott M. Breen, Charles T. Brown, Jeffery S. Pyper
  • Patent number: 6848290
    Abstract: A self-contained stock lifter is particularly adapted for use in multiple station, progressive metal forming dies and the like, and includes a base plate with two vertical through holes adjacent opposite sides, and a vertical spring unit aperture located between the through holes. The stock lifter also includes a lifter bar having two vertical through holes in vertical registry with the base plate through holes. Two rigid guide shafts are mounted in the base plate through holes to permit the lifter bar to reciprocate in a manner which selectively lifts stock in the die to permit longitudinal shifting of the stock along the multiple die stations. A spring unit has a base retained in the spring unit aperture, and a reciprocating rod biased outwardly, with a free end abutting a central portion of the lifter bar to shift the lifter bar to an extended position, thereby defining a fully self-contained unit that can be readily mounted in and removed from the die to reduce manufacturing and repair costs.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: February 1, 2005
    Assignee: Pyper Tool & Engineering, Inc.
    Inventors: Joel T. Pyper, John K. Pyper, Scott M. Breen, Charles T. Brown, Jeffery S. Pyper
  • Publication number: 20040069041
    Abstract: A self-contained stock lifter is particularly adapted for use in multiple station, progressive metal forming dies and the like, and includes a base plate with two vertical through holes adjacent opposite sides, and a vertical spring unit aperture located between the through holes. The stock lifter also includes a lifter bar having two vertical through holes in vertical registry with the base plate through holes. Two rigid guide shafts are mounted in the base plate through holes to permit the lifter bar to reciprocate in a manner which selectively lifts stock in the die to permit longitudinal shifting of the stock along the multiple die stations. A spring unit has a base retained in the spring unit aperture, and a reciprocating rod biased outwardly, with a free end abutting a central portion of the lifter bar to shift the lifter bar to an extended position, thereby defining a fully self-contained unit that can be readily mounted in and removed from the die to reduce manufacturing and repair costs.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 15, 2004
    Inventors: Joel T. Pyper, John K. Pyper, Scott M. Breen, Charles T. Brown, Jeffery S. Pyper
  • Patent number: 5983570
    Abstract: A safety device for sliding glass doors to prevent complete closure thereby inhibiting injury to small children. The safety device consists of a foam rubber strip which is secured to the leading edge of the sliding glass door by the use of a hook & pile attachment. The foam rubber prevents airborne debris from entering the residence while in a closed position as well as preventing conditioned air from escaping the residence. A lock mechanism provides security to the door while in a closed position. The safety device may be detached with provisions for placement of the device on a trailing edge of the sliding glass door for storage.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: November 16, 1999
    Inventor: Charles T. Brown
  • Patent number: 4096515
    Abstract: With closed loop control, the hue for a color television receiver is automatically set by means of a received VIR signal. Viewer preference of the hue setting is realized by gated addition of the viewer preference offset voltage into the VIR control loop. The viewer preference signal is added into the control loop on all lines other than the VIR line 19. During line 19 the hue control loop is left undisturbed for the establishment of the reference hue setting.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: June 20, 1978
    Assignee: General Electric Company
    Inventors: Charles T. Brown, Jr., Harry T. Freestone
  • Patent number: 4089025
    Abstract: A VIR signal detector circuit for a color television receiver identifies the repetitive reception of a VIR color information signal on a predetermined horizontal line of video signal. The detection is accomplished with minimum interference from Gaussian and pulse-type noise to assure that VIR color control circuits in the receiver are activated only upon receipt of an actual VIR signal. The VIR signal detector operates by generating a viewing pulse of short duration during each horizontal line in which a VIR signal may be present. An accumulator, set to respond to a predetermined number of simultaneous detections of the viewing pulse and a video signal exceeding a predetermined value, generates a control signal indicating that a VIR signal is being received.
    Type: Grant
    Filed: October 6, 1976
    Date of Patent: May 9, 1978
    Assignee: General Electric Company
    Inventors: Robert O. Banker, Charles T. Brown, Sanjar Ghaem-maghami, Howard E. Holshouser, Kenneth J. Wachter