Patents Assigned to General Binding Corporation
  • Punch selectable punch press
    Patent number: 5487634
    Abstract: For a punch mechanism, a selector rail which by shifting can change the punch hole pattern by activating or deactivating select punches along the rail. In a preferred embodiment, the punch can be quickly changed from a three hole standard punch to a two hole standard punch by activating and deactivating two select punches. The selector rail locks to the selected punch for both driving and retraction of the punch by force of an electric motor and gear train.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: January 30, 1996
    Assignee: General Binding Corporation
    Inventor: Al Vercillo
  • Automatic binder
    Patent number: 5464312
    Abstract: An apparatus and method for installing binder elements onto a stack of pre-punched paper including a platform for holding the paper, reciprocating guide fingers for inserting through the pre-punched holes to engage free ends of curled fingers of the binder element whereas the spine part of the binder element is restrained by a holder which moves laterally to spread apart the curled fingers. The spread apart curled fingers then are flattened and driven upwardly through the holes as the guide fingers retreat upwardly and thereafter separate from the curled fingers to complete the binding of the pages.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: November 7, 1995
    Assignee: General Binding Corporation
    Inventors: Peter Hotkowski, Peter Burton
  • Foot/table switch lockout for electric punches
    Patent number: 5440089
    Abstract: A lockout assembly for an electric press alternately operable by either a foot switch or a table switch includes a lock knob. An annular switch ring is rotatably mounted beneath the lock knob. The annular switch ring includes a release opening. The switch ring is rotatable between a locking position in which the release opening is out of alignment with an actuating lever of the table switch, and a release position in which the release opening is in alignment with the actuating lever of the table switch.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: August 8, 1995
    Assignee: General Binding Corporation
    Inventor: Gary F. Prokop
  • Adjustable binder stop
    Patent number: 5419668
    Abstract: A binding machine for opening a multi-ring plastic binding element to install a stack of pages thereon, providing an improved adjustment mechanism to set the opening dimension of the rings corresponding to the stack of pages to be bound as well as the particular sized binding element to be used. The adjustment device provides a stop ring mounted coaxially around a rocker shaft which upon rotation imparts sliding movement to longitudinally arranged fingers which engage with and open the binder element rings, the stop ring rotationally adjustable with respect to the rocker shaft and arranged to interfere with a stationary stop of the apparatus upon preselected rotation of the rocker shaft.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: May 30, 1995
    Assignee: General Binding Corporation
    Inventor: Thomas Ballist
  • Circuit for increasing motor output to compensate for increased load
    Patent number: 5404088
    Abstract: A circuit for boosting the power output of a motor in which a sensor stage, preferably a voltage divider, is coupled to comparator stage, preferably a reverse biased to a diode, which in turn is coupled to a power boost stage, preferably a relay and switched capacitance associated therewith, such that upon sensing of excess loading of the motor, the capacitance is switched across the output of the motor.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: April 4, 1995
    Assignee: General Binding Corporation
    Inventor: Nicholas M. Nanos
  • Disk lift separator
    Patent number: 5387078
    Abstract: A method and apparatus for separating groups of sheets from a stack for a punching or binding operation. The invention uses a dual disk arrangement having a front disk and a rear disk. The arrangement is for separating a substack from a stack of pages, the substack temporarily resting on the rear disk, and divided by the front disk. The arrangement includes a plurality of rollers downstream of the substack to transport the substack to a downstream processing station.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: February 7, 1995
    Assignee: General Binding Corporation
    Inventor: Frank A. Todaro
  • Temperature control for laminator
    Patent number: 5369246
    Abstract: A laminator temperature control includes a control circuit having a sensing amplifier that drives a triac to control power to PTC heating elements. A temperature sensor at an input of the sensing amplifier causes power to be inhibited to the heating elements when a predetermined adjustable temperature is reached by heating plates positioned between two pairs of rollers. When the heating plate temperature is below the predetermined temperature, proportioned control of the power supply duty cycle is provided. Indicators display the power supply status and temperature ready status of the laminator.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: November 29, 1994
    Assignee: General Binding Corporation
    Inventor: Nicholas M. Nanos
  • Thermal binding unit
    Patent number: D341845
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: November 30, 1993
    Assignee: General Binding Corporation
    Inventors: James F. Caruso, Walter B. Herbst
  • Pouch laminator
    Patent number: D353604
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: December 20, 1994
    Assignee: General Binding Corporation
    Inventors: Gary F. Prokop, Randall P. Bell, Walter B. Herbst
  • Rotary card file
    Patent number: D365367
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: December 19, 1995
    Assignee: General Binding Corporation
    Inventors: Randall Bell, Kim Vollendorf
  • Stapler
    Patent number: D369729
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: May 14, 1996
    Assignee: General Binding Corporation
    Inventors: Walter B. Herbst, Mikael Backstrom, Ralph Lazar
  • Stapler
    Patent number: D369730
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: May 14, 1996
    Assignee: General Binding Corporation
    Inventors: Walter B. Herbst, Mikael Backstrom, Ralph Lazar
  • Stapler
    Patent number: D370607
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: June 11, 1996
    Assignee: General Binding Corporation
    Inventors: Walter B. Herbst, Mikael Backstrom, Ralph Lazar
  • Stapler
    Patent number: D371495
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: July 9, 1996
    Assignee: General Binding Corporation
    Inventors: Walter B. Herbst, Mikael Backstrom, Ralph Lazar
  • Stapler
    Patent number: D371496
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: July 9, 1996
    Assignee: General Binding Corporation
    Inventors: Walter B. Herbst, Mikael Backstrom, Ralph Lazar
  • Combined electric paper punch and stapler
    Patent number: D372737
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: August 13, 1996
    Assignee: General Binding Corporation
    Inventors: Walter B. Herbst, Ralph Lazar
  • Stapler
    Patent number: D373058
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: August 27, 1996
    Assignee: General Binding Corporation
    Inventors: Walter B. Herbst, Mikael Backstrom, Ralph Lazar
  • Electric paper punch
    Patent number: D373793
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: September 17, 1996
    Assignee: General Binding Corporation
    Inventors: Walter B. Herbst, Ralph Lazar
  • Stapler
    Patent number: D374385
    Type: Grant
    Filed: July 3, 1995
    Date of Patent: October 8, 1996
    Assignee: General Binding Corporation
    Inventors: Walter B. Herbst, Ralph Lazar
  • Paper shredder
    Patent number: D375973
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: November 26, 1996
    Assignee: General Binding Corporation
    Inventors: Jeff Kennedy, Walter B. Herbst