Patents by Inventor Robert A. Crane

Robert A. Crane 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).

  • Telephone interface connection device
    Patent number: 4723919
    Abstract: The present invention relates to telephone network interface devices and includes a plug and a jack disposed in a block, the block being fitted within a housing. The location of the block within the housing and its manner of disposition protects the device from tampering and removal. The plug and jack are protected against the environment by a waterproof cover and resilient seals.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: February 9, 1988
    Assignee: GTE Products Corporation
    Inventor: Robert A. Crane
  • Passive error compensating device for optical alignment
    Patent number: 4170401
    Abstract: A passive compensating device which compensates for angular and translational misalignment errors in a polarized beam and assures the projected beam centroid remains at the same position. The device splits the incoming beam into two beams. Thereafter, optical orienting means disposed to intercept the two beams is operative to rotate the wavefront of both beams so that the composite beam exiting a combiner has two components wherein one component has its wavefront rotated 180.degree. about two orthogonal axes with respect to the other beam. Accordingly, the composite beam centroid is maintained at one position regardless of jitter of the beam entering the compensator device.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: October 9, 1979
    Assignee: The Perkin-Elmer Corporation
    Inventors: Paul R. Yoder, Jr., Eugene R. Schlesinger, Robert Crane, Jr.
  • Ternary ferroelectric fluoride nonlinear devices
    Patent number: 3982136
    Abstract: The nonlinear properties of the ternary ferroelectric barium fluorides permit noncritical phase matching in the vicinity of 1.06 microns at room temperature. The crystals can tolerate powers of up to approximatey 10.sup.9 watts/cm.sup.2 and may be used as the essential element in second harmonic generators. These devices operate at room temperature without any need for sophisticated temperature control.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: September 21, 1976
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: John George Bergman, Jr., Glen Robert Crane, Howard Joseph Guggenheim
  • Lithium perchlorate trihydrate nonlinear devices
    Patent number: 3965375
    Abstract: The nonlinear properties of LiClO.sub.4.3H.sub.2 O permit noncritical phase matching in the vicinity of 5200 Angstroms at room temperature. This material may be used as the essential element in second harmonic generators and other nonlinear devices which could then be operated at room temperature under noncritical phase-matched conditions.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: June 22, 1976
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: John George Bergman, Jr., Glen Robert Crane, Raymond Nichols Storey, Denise Williams
  • Display stand for merchandise
    Patent number: D259004
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: April 28, 1981
    Assignee: Burlington Industries, Inc.
    Inventors: Seymour Mayerson, Robert Crane, Larry Marchiony
  • Display stand for merchandise
    Patent number: D259528
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: June 16, 1981
    Assignee: Burlington Industries, Inc.
    Inventors: Robert Crane, Seymour Mayerson