Patents by Inventor Calvin Hulstein

Calvin Hulstein 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: 3991704
    Abstract: In order to form a band of coating material around the shanks of a plurality of headed articles, an arrangement is provided for conveying each article along a conveying path with a predetermined orientation past a coating applicator. The articles are initially supplied by a feeding device which emits, via a transfer device, the articles with the desired orientation onto the conveying path. The transfer device receives the articles from the feed device, accelerating them to a predetermined speed and transfers them to the subsequent conveying path with a predetermined minimum distance between each article. The subsequently arranged conveying path is formed by a pair of relatively horizontal and generally parallel conveyer elements, which elements are supported in a spaced relationship with a drive arrangement being provided for moving one of the elements relative to the other in a direction along the conveying path.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: November 16, 1976
    Assignee: Loctite Corporation
    Inventors: Calvin Hulstein, William Gelinas