Patents by Inventor Willi Haug

Willi Haug 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).

  • Injection adapter
    Patent number: 5033952
    Abstract: An injection adapter for introducing a flowable compound into a drilled hole in masonry has a plastic tubular part having an inner thread in the upper end thereof for engaging a threaded end of a bolt of a fixing element anchored in the drilled hole which threaded end projects from the drilled hole. The injection adapter has a lower tapering end having a front annular end face for engaging an adjacent annular end face of a sleeve of the fixing element.
    Type: Grant
    Filed: February 9, 1990
    Date of Patent: July 23, 1991
    Assignee: Fischerwerke Artur Fischer GmbH & Co. KG.
    Inventor: Willi Haug
  • Drill
    Patent number: 4993894
    Abstract: A drill for drilling holes in masonry and comprising a depth stop mounted on the drill shank and formed as a resilient anti-vibration element.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: February 19, 1991
    Assignee: Fischerwerke Artur Fischer GmbH & Co. KG
    Inventors: Artur Fischer, Willi Haug
  • Injection adaptor for and a method of applying a corrosion protective agent to a fixing element anchored in a hole
    Patent number: 4992004
    Abstract: An injection adaptor for injecting a free-flowing compound into a hole drilled in masonry and into cavities of a fixing element anchored in the drilled hole, and comprising an inner pressure chamber in which a portion of a threaded bolt that forms a part of the fixing element, is received, a nipple for injecting the compound into the inner pressure chamber, and seal elements for sealing the inner pressure chamber with respect to a sleeve that constitutes another part of the fixing element.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: February 12, 1991
    Assignee: fischerwerke Artur Fischer GmbH & Co KG
    Inventor: Willi Haug