Patents Assigned to ADC
  • High-density fiber distribution frame
    Patent number: 5497444
    Abstract: A fiber distribution frame includes a fixture having a plurality of modules mounted side-by-side within said fixture with each of the modules being individually mounted in a line of travel. Each of the modules can be locked in any one of a plurality of discrete positions within the line of travel. Each of the modules contains a plurality of adapters for receiving and retaining fiber optic connectors. Further, the fixture may be tilted downwardly to provide access to the rear of the fixture.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: March 5, 1996
    Assignee: ADC Telecommunications, Inc.
    Inventor: Todd A. Wheeler
  • Crimp for fiber optic connector
    Patent number: 5475782
    Abstract: A fiber optic cable is crimped to a fiber optic connector using a crimp sleeve having an insertion tube which is inserted between the optical fiber and reinforcement yarns of the cable. A flange projecting from the tube flares the yarn upon insertion of the tube into the cable. Subsequent insertion of the crimp sleeve and cable into a housing causes the flared yarn to fold back onto the cable avoiding contact of the yarn with adhesive in the connector.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: December 12, 1995
    Assignee: ADC Telecommununications, Inc.
    Inventor: Robert J. Ziebol
  • Miniature coax jack module
    Patent number: 5467062
    Abstract: A miniature coax jack module includes a grounded conductive housing with coax conductors disposed of within the housing. A dielectric insert maintains the conductors in electrically spaced relation to the housing. The housing has internal surfaces surrounding the conductors to provide coax shielding to the conductors.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: November 14, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventor: Dennis M. Burroughs
  • Fiber optic switch
    Patent number: 5463704
    Abstract: A rotary fiber optic switch switches a first optical fiber among a plurality of second optical fibers. The switch is calibrated with a control mechanism such that movement of the rotated fiber to a prescribed position achieves a maximum power transmission between the first fibers and an opposing one of said plurality.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: October 31, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventor: Robert J. Ziebol
  • Control and communications apparatus
    Patent number: 5453737
    Abstract: A master/slave communication and control system includes a master controller and a plurality of slave subsystems, the master controller connected with the slave subsystems through first and second independent serial data buses, one of the data buses providing a working data bus, the other data bus providing a standby data bus. The master controller generates a A/B select signal applied to each of the slave subsystems to select which of the A or B data buses the slave .subsystems will use to communicate with the master controller. Each of those slave subsystems generates an independent request for communication signal, carried on an input request line to the master controller. A plurality of kill signals are generated by the master controller and applied over independent kill lines to each of the slave subsystems, whereby the master controller may send the kill signal to any one of the slave subsystems.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: September 26, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventor: Adam Opoczynski
  • Ringing generator for telephones
    Patent number: 5442698
    Abstract: A ringing generator includes a binary signal source generating a waveform with eight degrees of freedom controlled to suppress or cancel certain harmonics to produce a binary low frequency signal substantially free of low frequency components other than the desired ringing frequency. The binary signal is amplified and filtered to remove unwanted frequency components above a certain threshold to produce a substantially sinusoidal ringing signal.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: August 15, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventor: William Kinghorn
  • Fiber optic monitor module
    Patent number: 5432875
    Abstract: A fiber optic connector module includes a beam splitter for directing 10 percent of a fiber optic signal to a monitor connector. The input of the beam splitter is passed through a variable attenuator. By monitoring at the monitor connector, the variable attenuator can be adjusted utilizing the known split ratio of the beam splitter to achieve a desired dynamic range of the optical signal leaving the module.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: July 11, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventors: Jeff L. Korkowski, David J. Emmons
  • Optical switch
    Patent number: 5422969
    Abstract: An optical switch is disclosed for a system including signals carried over a plurality of optical fibers. The switch comprises a first and second plurality of optical fibers with each of the fibers terminating at a terminal end. A first switch body is provided for holding fibers of the first plurality in a closely packed array with terminal ends disposed circumferentially about a common first axis. A second switch body is provided for holding fibers of the second plurality in a second array. The first and second arrays are selected for at least a portion of terminal ends of the fibers of the first plurality to be optically coupled with terminal ends of at least one of the fibers of the second plurality when the first array is angularly displaced about the first axis in any one of a plurality of angularly displaced positions.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: June 6, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventor: Robert A. Eno
  • Coax connector with center pin locking
    Patent number: 5417588
    Abstract: A connector for terminating coax cables includes a center pin mounted in a dielectric support. The support has a resilient locking arm which snaps into a recess of the center pin to prevent relative axial movement of the pin and the support.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: May 23, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventors: Cynthia G. Olson, Dennis M. Burroughs
  • Jack module assembly
    Patent number: 5413494
    Abstract: A jack module assembly includes at least two jack modules carried in a dielectric frame. The frame holds the modules in co-planar alignment. The frame has a width approximate to a width of the modules.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: May 9, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventors: James D. Dewey, Dennis M. Burroughs
  • Protection switching apparatus and method
    Patent number: 5408462
    Abstract: A protection switching system is disclosed which includes a plurality of telecommunications modules for processing and/or switching telecommunications signals. A first module provides signals to one pair of modules, which are in turn connected to another pair of modules. Each pair of modules includes a working and a standby module. The standby module controls the switching of all the modules in the system which require switching in the event that the standby module is activated. A controller monitor circuit monitors the faults present on the working modules and, if a fault is detected, signals the corresponding standby module, which in turn provides the protection switching.
    Type: Grant
    Filed: October 7, 1993
    Date of Patent: April 18, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventor: Adam Opoczynski
  • Rear cross connect DSX system
    Patent number: 5393249
    Abstract: A jack assembly is disclosed including a jack having a means for releasable attachment to a mount. The jack further includes a body with means for connection to jack plugs and a circuit board having a plurality of contact points disposed on the first and second sides of the circuit board. Also included is a mount having a plurality of exposed contact members arranged in a predetermined array so that when the jack is inserted into the mount each electric contact point is in electrical communication with a discrete member of the contact members on the mount.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: February 28, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventors: Todd A. Morgenstern, James D. Dewey
  • Fiber optic connector with vented ferrule holder
    Patent number: 5381497
    Abstract: A fiber optic connector includes a ferrule received within a ferrule holder. The ferrule holder is provided with venting to evacuate air from an adhesive receiving chamber to avoid air pocket formation in adhesive.
    Type: Grant
    Filed: July 27, 1993
    Date of Patent: January 10, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventors: David S. Toland, Michael F. McGuire, Gary S. Farrell, Kevin J. Pitkin, Michael S. Beard, David Emmons, James W. Conroy, Robert J. Ziebol
  • Thyristor fail-safe device
    Patent number: 5369543
    Abstract: A fail-safe device is provided for use with a thyristor having a main body sandwiched between electrically conductive end plates. The fail-safe device includes a spring body formed of electrically conductive material having contact surfaces bent about a central fold. The thyristor is placed between the contact surfaces with the end plates in electrical opposition to each contact surface. A conductor plate is disposed between one of the end plates and one of the contact surfaces. The conductor plate includes a lead for electrical connection to the circuit to be protected. The spring body includes a lead for electrical connection to an electrical ground. A dielectric spacer is disposed between the conductor plate and the contact surface. The dielectric spacer is selected to deform in response to an elevated temperature generated by the thyristor during an over-voltage condition.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: November 29, 1994
    Assignee: ADC Telecommunications, Inc.
    Inventors: John S. Bonnesen, James D. Dewey
  • Fiber optic connector module
    Patent number: 5363465
    Abstract: A fiber optic module which includes a framework receiving circuit card cartridges. The cartridges have a plate which extends along the sides of the housing with the first edge extending a differing length than the second edge. The module includes a housing having a framework with spaces for receiving the cartridges. The framework has slots formed therein for receiving the edges of the cartridges. The slots and spaces align the cartridges in the housing so that the cartridges are properly aligned in the housing.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: November 8, 1994
    Assignee: ADC Telecommunications, Inc.
    Inventors: Jeff L. Korkowski, David J. Emmons, Dalen J. Defoe
  • Jack module
    Patent number: 5348491
    Abstract: A jack module including a switching jack subassembly and monitor jack assembly includes a printed circuit board between the subassemblies. The subassemblies and circuit board are commonly housed. The printed circuit board contains monitor circuitry.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: September 20, 1994
    Assignee: ADC Telecommunications, Inc.
    Inventors: Dominic J. Louwagie, John M. Field
  • Fiber trough coupling
    Patent number: D348651
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: July 12, 1994
    Assignee: ADC Telecommunications, Inc.
    Inventor: Roy Henneberger
  • Circuit board cartridge
    Patent number: D357228
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: April 11, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventor: Mark A. Anton
  • Optical fiber distribution frame
    Patent number: RE34955
    Abstract: An optical fiber distribution frame is disclosed which includes a plurality of modular cabinets. The plurality of cabinets includes a connector cabinet having a front panel with sleeve adaptors for mounting a plurality of connector sleeves on said panel at an angle to said panel.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: May 30, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventors: Mark A. Anton, Jory A. Steinman, Paul A. Suek, Wayne A. Johnson
  • Optical fiber cabinet
    Patent number: D362255
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: September 12, 1995
    Assignee: ADC Telecommunications, Inc.
    Inventor: Stephen D. White