Patents by Inventor Weng Jiam-Fa

Weng Jiam-Fa 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: 5056186
    Abstract: A combination cleaner is provided which combines both vacuum cleaning and brushing or waxing capabilities. All operative elements are contained within a main body (11) and driven by a motor (17) through a driving train and a clutch assembly (19). The vacuum cleaning portion of the combination cleaner includes a vacuum fan (18), as well as a filter net (16) located within a frontal hood (14) of the combination cleaner. Waxing brushes (21) are mounted on a bottom portion of the combination cleaner and the combination cleaner may be selectively used in accordance with a plurality of brushes. The cleaner provides both vacuum cleaning and waxing capabilities through actuation of the clutch assembly (19) for providing a multi-purpose and multi-effective combination cleaner being used at the discretion of an operator.
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: October 15, 1991
    Inventor: Weng Jiam-Fa