Patents by Inventor Wilhelmus A. H. Hoek

Wilhelmus A. H. Hoek 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: 5167576
    Abstract: In a lighting-fitting comprising a socket-structure for an electrical lamp and a filter device to remove smoke components of cigars and cigarettes, which device is provided with an electrical blower (6) and at least one smoke filter (3,4), the socket-structure is housed within a first hood (1), which is placed within a larger second hood (2), such that a space between the first hood and second hood forming a smoke channel (7, 7') extending to the filter device is defined. Furthermore, the socket-structure is designed for at least one TL-tube, while the smoke filters (3,4) are located within the second hood (2) over the top of the first hood (1), and the first hood (1) can easily be assembled and disassembled relative to the second hood (2). In a preferred embodiment, the space between the first hood (1) and the second hood (2) defines an exhaust channel (12) extending from the filter device, to exhaust filtered air.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: December 1, 1992
    Inventor: Wilhelmus A. H. Hoek