Patents by Inventor Man K. Wong

Man K. Wong 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: 4752423
    Abstract: A combined humidifier and fan heater unit includes a humidifier part (1) electrically operable to dispense water vapour into the surrounding air space for humidifying purposes, and a fan heater part (2) electrically operable either together with or instead of the humidifier part (1) to draw air from the surrounding air space, through heating means (34), by which it is raised in temperature or not as desired, and pass it back into the surrounding air space.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: June 21, 1988
    Assignee: Wellman Industrial Company, Ltd.
    Inventor: Man K. Wong
  • Patent number: 4741105
    Abstract: A combined envelope opener and pencil sharpener unit has an envelope opener part (1) constructed to receive a letter envelope (5) for the like to be opened passed in a substantially horizontal plane therethrough and operable electrically to cut open an edge margin of the envelope (5) or the like in a directional substantially at rights angles to said plane during passage therethrough. The unit also includes a pencil sharpener part (2) constructed to receive a pencil or the like to be sharpened inserted substantially at right angles to said plane and operable electrically to sharpen the inserted end of the pencil.
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: May 3, 1988
    Assignee: Wellmann Industrial Co. Ltd.
    Inventor: Man K. Wong
  • Patent number: 4735153
    Abstract: A load support and handling means is provided in the form of a pallet (1). The pallet (1) includes a first, generally rectangular support surface (2) on which a load (3) to be handled can be placed, which first support surface (2) is made from semi stiff flexible sheet material. The pallet (1) also includes a second generally rectangular support surface (4) made from semi stiff flexible sheet material which underlies and is spaced from the first support surface (2). The second support surface (4) is intended to rest on a further support surface such as the ground. Also forming part of the pallet (1) are at least two elongated spacer members (6) in side by side spaced apart location between the first and second support surfaces (2, 4) at two opposed edge margins (2b and 4a) thereof to define therewith a central aperture (7) between the support surfaces (2, 4).
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: April 5, 1988
    Assignee: Wellman Industrial Co. Ltd.
    Inventor: Man K. Wong
  • Patent number: D308413
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: June 5, 1990
    Assignee: Well Men Industrial Co. Ltd.
    Inventor: Man K. Wong