Patents by Inventor John R. Underwood

John R. Underwood 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).

  • Publication number: 20120157907
    Abstract: Vitrectomy probes and system related thereto are disclosed herein. The disclosure describes various example vitrectomy probes having an adjustable cutting port size. Various example features are described for adjusting the size of the cutting port. Further, the disclosure provides examples for adjusting the size of the cutter port while the vitrectomy probe is in operation.
    Type: Application
    Filed: August 26, 2011
    Publication date: June 21, 2012
    Inventors: John R. Underwood, Jack Robert Auld, John Christopher Huculak
  • Publication number: 20120158029
    Abstract: Vitrectomy probes and system related thereto are disclosed herein. The disclosure describes various example vitrectomy probes having an adjustable cutting port size. For example, one example vitrectomy probe includes a piezoelectric element adapted to adjust the size of the cutting port. Further, the disclosure provides examples for adjusting the size of the cutter port while the vitrectomy probe is in operation.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 21, 2012
    Inventors: John R. Underwood, Jack Robert Auld, John Christopher Huculak
  • Publication number: 20120157908
    Abstract: Vitrectomy probes and system related thereto are disclosed herein. The disclosure describes various example vitrectomy probes having an adjustable cutting port size. Various example features are described for adjusting the size of the cutting port. Further, the disclosure provides examples for adjusting the size of the cutter port while the vitrectomy probe is in operation.
    Type: Application
    Filed: August 26, 2011
    Publication date: June 21, 2012
    Inventors: John R. Underwood, Jack Robert Auld, John Christopher Huculak
  • Publication number: 20120157909
    Abstract: Vitrectomy probes and system related thereto are disclosed herein. The disclosure describes various example vitrectomy probes having an adjustable cutting port size. Various example features are described for adjusting the size of the cutting port. Further, the disclosure provides examples for adjusting the size of the cutter port while the vitrectomy probe is in operation. Some implementations disclosed herein include a piezoelectric element operable to adjust a position of a stroke limiter to define a size of the cutter port.
    Type: Application
    Filed: August 26, 2011
    Publication date: June 21, 2012
    Inventors: John R. Underwood, Jack Robert Auld, John Christopher Huculak
  • Patent number: 7758585
    Abstract: A liquefaction surgical handpiece having a check valve within the boiling chamber. Such a construction reduces upstream fluid volume. Reduction of upstream fluid volume reduces capability for compliance caused either by trapped air or absorbed gas in the liquid.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: July 20, 2010
    Assignee: Alcon, Inc.
    Inventors: Glenn Sussman, John R. Underwood
  • Patent number: 7552508
    Abstract: A caster attachment system includes an upper section and a lower section. The upper section mounts to a piece of equipment. The lower section provides a post for the mounting of a caster. A shaped key on the lower section fits within a receiver socket on the upper portion. The upper section and the lower section are held together by a threadable connection.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: June 30, 2009
    Assignee: Alcon, Inc.
    Inventor: John R. Underwood
  • Publication number: 20080257227
    Abstract: A tabletop unit to base attachment system of a medical/surgical system includes a top half and a bottom half. The top half includes a non-rotating post assembly surrounded by a captive internally threaded nut. The bottom half includes a receiver socket surrounded by external threads. Engagement of the internally threaded portion of the nut with the external threads on the receiver socket secures the top half and bottom half together, thereby mounting the tabletop unit to the base.
    Type: Application
    Filed: June 22, 2007
    Publication date: October 23, 2008
    Inventor: John R. Underwood
  • Publication number: 20070266525
    Abstract: A caster attachment system includes an upper section and a lower section. The upper section mounts to a piece of equipment. The lower section provides a post for the mounting of a caster. A shaped key on the lower section fits within a receiver socket on the upper portion. The upper section and the lower section are held together by a threadable connection.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 22, 2007
    Inventor: John R. Underwood
  • Publication number: 20020130060
    Abstract: A packaging system includes a chain of imbricated, taped bags; and a shipping container into which the chain of imbricated, taped bags are disposed, the shipping container including a cover, the cover adapted to function, when in an extended position, as a loading platform for the chain of imbricated, taped bags. A packaging system includes a chain of imbricated, taped bags, wherein the chain of bags includes a pair of tapes, and an adhesive, such that each bag is adhesively but releasably attached to the pair of tapes; and a shipping container into which the chain of imbricated, taped bags are disposed, the shipping container including a cover, the cover adapted to function, when in an extended position, as a loading platform for the chain of imbricated, taped bags.
    Type: Application
    Filed: March 16, 2001
    Publication date: September 19, 2002
    Inventors: John P. Carson, Gregory E. McDonald, John R. Underwood, Robert A. Odabashian
  • Publication number: 20020130058
    Abstract: A roll of bags includes a spool; and a chain of imbricated taped bags mounted on the spool. A roil of bags includes a container having a curved bottom portion; and a chain of imbricated taped bags disposed on the curved bottom portion of the container. A roll of bags includes a spool having a first and second end; and a chain of imbricated taped bags mounted on the spool, the chain of bags having first and second lateral sides, wherein the chain of bags includes a pair of tapes, and an adhesive, such that each bag is adhesively but releasably attached to the pair of tapes. A method of packaging a chain of imbricated taped bags includes providing a spool; and winding the chain of imbricated taped bags on the spool.
    Type: Application
    Filed: March 16, 2001
    Publication date: September 19, 2002
    Inventors: John P. Carson, Gregory E. McDonald, John R. Underwood, Robert A. Odabashian
  • Patent number: 4091349
    Abstract: High voltage winding lead and terminal structures are disclosed. In the winding of slot wound transformers by means of a plurality of coils of fine wire, wherein each coil is of narrow width and large diameter, a severe problem of corona discharge is present in trying to make a connection to the inner end of each of the winding coils. To solve this problem, relatively wide members are provided on the coil form to form the winding slots. Grooves are provided in these members with a conductor of large cross section being placed in the groove to make an electrical connection with the inner end of each of the winding coils. Preferably, the large conductor is mounted tangent to the inner turn of the coil and the fine wire of the coil is pulled in contact with the conductor of large cross section by automatic winding machinery.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: May 23, 1978
    Assignee: General Electric Company
    Inventors: Wayne M. Niederjohn, John R. Underwood