Patents by Inventor Heinz J. Niggl

Heinz J. Niggl 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).

  • Housing for the accommodation of electrical assembly carriers
    Patent number: 4752861
    Abstract: A housing consists of modular housing units 1 which can be stacked one above another and beside each other and which are provided with mechanically stable sidewalls 11. Between the sidewalls 11 of vertically adjacent housing units 1, a slot is formed which takes up variations and irregularities in the adjacent sidewall edges and permits mechanically stable connection and simultaneous electrical connections to laterally adjacent housing units 1. The housing does not have a separate frame for the accommodation of the circuit boards. Horizontal locking plates 12 connect the sidewalls 11 and provide both guide rails for the circuit boards and cooling openings.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: June 21, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventors: Heinz J. Niggl, Guenter Thom