Patents by Inventor Allen T. Wright

Allen T. Wright 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).

  • Shear mode transducer for drop-on-demand liquid ejector
    Patent number: 4584590
    Abstract: A single piezoelectric transducer is used to drive an array of drop-on-demand ink jet ejectors. This is accomplished by utilizing a plurality of electrodes which divide the piezoelectric transducer into discrete, deformable sections, each section corresponding to an ejector.
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: April 22, 1986
    Assignee: Xerox Corporation
    Inventors: Kenneth H. Fischbeck, Allen T. Wright
  • Suspension for an oscillating bar
    Patent number: 4322063
    Abstract: An improved suspension for an axially oscillating bar. The suspension is a trifurcated spring, the bar being attached to the central section of the spring. The spring may be mounted to act as a multiple cantilever spring. Preferably, two matching springs are used to suspend the bar.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: March 30, 1982
    Assignee: Xerox Corporation
    Inventors: Kenneth H. Fischbeck, Allen T. Wright
  • Multifunction graphic engine based on an oscillating scanner
    Patent number: 4314282
    Abstract: A simple graphic engine in which a document reading array and an array of marking elements are supported on the same support member. The support member is scanned in a direction orthogonal to the direction of relative movement between the support member and the document to be read and/or the record-receiving member. The support member is oscillated axially during scanning to reduce the number of elements required in both the scanning and marking elements.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: February 2, 1982
    Assignee: Xerox Corporation
    Inventors: Kenneth H. Fischbeck, Allen T. Wright, Lee L. Bain, Demetris E. Paraskevopoulos
  • Encapsulated piezoelectric pressure pulse drop ejector apparatus
    Patent number: 4243995
    Abstract: A pulsed liquid droplet ejecting apparatus wherein a rectangular piezoelectric transducer is arranged abaxially over an ink containing channel with an edge in operating relationship with the channel. The edge of the transducer is held fixed so that on excitation of the transducer by an electrical pulse, the transducer extends towards the channel ejecting a drop. The piezoelectric transducer is coated with a material, which provides shear relief between the piezoelectric transducer and the ejector embedding material.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: January 6, 1981
    Assignee: Xerox Corporation
    Inventors: Allen T. Wright, Kenneth H. Fischbeck
  • Web handling device
    Patent number: 3985277
    Abstract: A web forwarding device wherein a web is friction driven by a drive means associated with a web pressure backing roll and a pair of pressure arms. The amount of wrap and tension around the backing roll is controlled by a pair of free floating pivotally mounted and interconnected pressure arms which hold the web on the roll. The pressure arms are adjustably mounted to control the distance between the axis of rotation of the roll and the pivot point.
    Type: Grant
    Filed: March 26, 1975
    Date of Patent: October 12, 1976
    Assignee: Xerox Corporation
    Inventor: Allen T. Wright