Patents by Inventor Roger Geoffrey Halstead

Roger Geoffrey Halstead 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).

  • Position adjustment mechanism
    Patent number: 7690618
    Abstract: The present invention relates to a position adjustment mechanism, comprising two cylindrical portions, a first one of the portions being slidably disposed inside a second one of the portions. One of the portions has at least three detents and the other portion has at least three members for engaging in respective the detents to hold the portions in a first position, the members being removable from the detents to allow the portions to move into a second position; wherein the detents and members are equi-spaced around the first and second portions.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: April 6, 2010
    Inventor: Roger Geoffrey Halstead
  • Pool table
    Patent number: 7211003
    Abstract: A pool table or the like (10) is formed from a trough (20) whose edges support the bed (12) of the table and have the cushions (34) attached to them. The trough includes means for directing potted balls in a particular manner, which may be in the form of channels (28). Sound-deadening material may be provided on the trough. The cushions can be attached to the trough by clips (56), pegs (90) or conventional means. The invention also extends to the trough itself, and to a method of assembling a table with a trough.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: May 1, 2007
    Inventor: Roger Geoffrey Halstead
  • Position adjustment mechanism
    Publication number: 20040240333
    Abstract: The present invention relates to a position adjustment mechanism, comprising two cylindrical portions, a first one of the portions being slidably disposed inside a second one of the portions. One of the portions has at least three detents and the other portion has at least three members for engaging in respective said detents to hold said portions in a first position, the members being removable from said detents to allow said portions to move into a second position; wherein the detents and members are equi-spaced around the first and second portions.
    Type: Application
    Filed: March 15, 2004
    Publication date: December 2, 2004
    Inventor: Roger Geoffrey Halstead
  • Pool table
    Publication number: 20030096655
    Abstract: A pool table or the like (10) is formed from a trough (20) whose edges support the bed (12) of the table and have the cushions (34) attached to them. The trough includes means for directing potted balls in a particular manner, which may be in the form of channels (28). Sound-deadening material may be provided on the trough. The cushions can be attached to the trough by clips (56), pegs (90) or conventional means. The invention also extends to the trough itself, and to a method of assembling a table with a trough.
    Type: Application
    Filed: December 31, 2002
    Publication date: May 22, 2003
    Inventor: Roger Geoffrey Halstead