Patents by Inventor Iwamoto Zenzaburo

Iwamoto Zenzaburo 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: 4177790
    Abstract: Three wire leg members are attached to a relatively small hub member and are movable between a folded position in which all three leg members are relatively together and an in use position in which the three leg members are substantially equally spaced apart and extend radially outwardly from the hub member. A gas burner unit is received within an upwardly directed recess formed in the hub member and includes an upwardly directed burner head. The wire leg members have lower portions restable on a support surface and upper portions providing a pan support at a level above the burner head. A flexible hose extends from the burner unit to a control valve and adaptor assembly attachable to the top of a can of butane gas. The control valve includes a knob and means controlled by rotation of the knob for moving a depressable member which is a part of an outlet valve built into the can, for both turning the gas flow on and off and regulating its flow rate.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: December 11, 1979
    Assignee: International Business Development Co.
    Inventor: Iwamoto Zenzaburo
  • Patent number: 4092974
    Abstract: Three wire leg members are attached to a relatively small hub member and are movable between a folded position in which all three leg members are relatively together and in use position in which the three leg members are substantially equally spaced apart and extend radially outwardly from the hub member. A gas burner unit is received within an upwardly directed recess formed in the hub member and includes an upwardly directed burner head. The wire leg members have lower portions restable on a support surface and upper portions providing a pan support at a level above the burner head. A flexible hose extends from the burner unit to a control valve and adaptor assembly attachable to the top of a can of butane gas. The control valve includes a knob and means controlled by rotation of the knob for moving a depressable member which is a part of an outlet valve built into the can, for both turning the gas flow on and off and regulating its flow rate.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: June 6, 1978
    Assignee: International Business Development Company
    Inventor: Iwamoto Zenzaburo