Patents by Inventor Raymond W. M. Chan

Raymond W. M. Chan 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: 5476225
    Abstract: A shower head has a plurality of concentric circular water races, each race having therein a different pattern of spray emitting openings. An elastomeric sheet is spread between a water plenum and the races to prevent water from leaking from the plenum and into the races. The elastomeric sheet has an opening over each race. A selector may be either a dial or a push button which moves a device that covers or uncovers openings in the elastomeric sheet in order to select a specific spray pattern. The push button or a rubber boot over the dial facilitates an operation of the selector when the user has soapy hands.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: December 19, 1995
    Assignee: Jing Mei Industrial Limited
    Inventor: Raymond W. M. Chan
  • Patent number: 5433384
    Abstract: A push button controlled multifunction shower head. The push button moves a pawl attached to spring biased slide, the pawl bearing against a ratchet wheel which is rotated through a predetermined arcuate step responsive to each push button operation. The ratchet wheel moves a shutter which directs water into a selected one of several races, each race being individually associated with a spray pattern. The shower head may be built into a hand held housing wherein the handle may be held and the push button may be operated by one hand.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: July 18, 1995
    Assignee: Jing Mei Industrial Limited
    Inventors: Raymond W. M. Chan, Joseph E. Ford, Ronald O. Hilger
  • Patent number: D370052
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: May 21, 1996
    Assignee: Jing Mei Industrial Limited
    Inventors: Raymond W. M. Chan, Joseph E. Ford, Ronald O. Hilger
  • Patent number: D374065
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: September 24, 1996
    Assignee: Jing Mei Industrial Limited
    Inventor: Raymond W. M. Chan
  • Patent number: D374273
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: October 1, 1996
    Assignee: Jing Mei Industrial Holdings
    Inventor: Raymond W. M. Chan
  • Patent number: D375140
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: October 29, 1996
    Assignee: Jing Mei Industrial Limited
    Inventor: Raymond W. M. Chan
  • Patent number: D379212
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: May 13, 1997
    Assignee: Jing Mei Industrial Holdings
    Inventor: Raymond W. M. Chan
  • Patent number: D381737
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: July 29, 1997
    Inventor: Raymond W. M. Chan
  • Patent number: D392369
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: March 17, 1998
    Inventor: Raymond W. M. Chan
  • Patent number: D394897
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: June 2, 1998
    Inventor: Raymond W. M. Chan