Patents by Inventor Nicolaas H. M. Beentjes

Nicolaas H. M. Beentjes 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: 4214735
    Abstract: Apparatus for manufacturing steel includes a hood adapted to be connected to the mouth of a converter. The hood has at least one conduit opening into it for introducing secondary materials into the hood. In order to arrange monitoring points of the pressure within the hood cheaply and conveniently, the pressure-measuring points are incorporated into the upper sides of the conduits. Each conduit may also have a connection which enables it to be flushed out with an inert gas, thus preventing a dangerous build up of inflammable gases within the conduit.
    Type: Grant
    Filed: September 1, 1978
    Date of Patent: July 29, 1980
    Assignee: Hoogovens IJmuiden, B.V.
    Inventor: Nicolaas H. M. Beentjes