Patents by Inventor Robert E. David

Robert E. David 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).

  • Patent number: 5833536
    Abstract: A game machine is provided which comprises a display device, a processor connected to the display device and a user input device connected to the processor. The processor is programmed to generate images of playing cards moving from a point on the display device toward a plurality of card hand locations displayed on the display device. To play a card game such as poker on the game machine, a player uses the user input device to select a moving card and direct its movement toward a selected card position in a selected one of the card hand locations. If the player does not select and direct a moving card before a predetermined period of time elapses (e.g., as determined by the time required for a card to travel a predetermined distance), the processor automatically places the card in one of the card hand locations.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: November 10, 1998
    Assignee: International Game Technology
    Inventors: Robert E. Davids, Forrest D. Wolf, Jon N. Bengston
  • Patent number: 5284129
    Abstract: A swivel ring surgical retractor in a generally circular form is disclosed. The retractor has a fixed portion which is attached to the operating table or other support and a portion which can swivel in relationship to the fixed portion. The swivel portion is attached to the fixed portion of the retractor with a threaded shaft which forces two sunburst clamping inserts into engagement to secure the swivel portion to the fixed portion. The swivel portion can be adjusted or removed from the fixed portion by unthreading the shaft to disengage the sunburst clamping inserts to adjust the position of the swivel portion or to remove the swivel portion from the fixed portion.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: February 8, 1994
    Assignee: Codman & Shurtleff, Inc.
    Inventors: Victor B. Agbodoe, Edward L. Gallini, Robert E. David
  • Patent number: 5254079
    Abstract: A head clamp which includes a frame with two arms, a bracket on one of the arms capable of rotation to adjust the position of head engaging pins affixed at the ends of the arms. The bracket is rotatable but held in position by a plurality of index pins fixed in apertures in a plate and the bracket is capable of being rotated by moving the pins out of the apertures and rotating the bracket when the head engaging pins have been removed from the patient.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: October 19, 1993
    Assignee: Codman & Shurtleff, Inc.
    Inventors: Victor B. Agbodoe, Edward L. Gallini, Robert E. David
  • Patent number: 5214815
    Abstract: A surgical headrest which comprises two arcuate base segments and a pad affixed to each of the base segments. Each of the pads has a cavity in the surface which is affixed to the base in a shape to accept the base segment, thereby securing the pad to the base segment.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: June 1, 1993
    Assignee: Codman & Shurtleff, Inc.
    Inventors: Victor B. Agbodoe, Robert E. David
  • Patent number: 4517558
    Abstract: A three dimensional visual effect of rotating mechanical reels is given to a two dimensional display on a video screen by using a film having a continuous tone gradient from dark to light, the darkest portions extending along the upper and lower edges of the film, respectively, with the lightest adjacent the center of the film. The film is placed over the video screen images so that the darkened tone gradients of the film are over the upper and lower portion of the display, and the lighter portion of the film at the center is over the center of the display.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: May 14, 1985
    Assignee: International Game Technology
    Inventor: Robert E. Davids
  • Patent number: 4475564
    Abstract: An improved coin operated and handling apparatus having a coin acceptor, a hopper payout assembly, coin storage chamber and a coin tray includes a coin diverter assembly located downstream from the hopper payout assembly between the coin storage chamber and coin tray.
    Type: Grant
    Filed: January 4, 1982
    Date of Patent: October 9, 1984
    Assignee: International Game Technology
    Inventors: Harold E. Koester, Robert E. Davids