Patents by Inventor Kurt Adelbratt

Kurt Adelbratt 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: 4461592
    Abstract: The invention relates to a device for e.g. connecting two shafts (1,2). It comprises an inner sleeve (3) surrounding both shafts, and two outer sleeves (4,6) surrounding the inner sleeve and one shaft each. The inner sleeve is deformed radially inwards into contact with the shafts when the outer sleeves are pressed axially away from each other, whereby sliding occurs in their respective contacts with the inner sleeve. In order to provide a device which does not require access to the end surfaces (12,13) and to avoid protruding parts, pressing the sleeves (4,6) away from each other is made by screws (9) arranged in axially directed threaded bores (8) in the end surface of one of the sleeves (6) and contacting the end surface of the other sleeve (4). The screw heads (10) are accessible from radially outside.
    Type: Grant
    Filed: September 18, 1981
    Date of Patent: July 24, 1984
    Assignee: Aktiebolaget SKF
    Inventor: Kurt Adelbratt
  • Patent number: 4411551
    Abstract: The invention concerns a device for providing a friction joint. It comprises an inner (1,11) and an outer (2,9) element, the inner element having a tapered outer surface co-operating with a complementary tapered inner surface in a bore in the outer element. Means (6,7,8,12) are provided for displacing the elements axially parallel to the taper axes. One element preferably consists of a slitted clamping sleeve, and for diminishing the friction in the tapered contact and simplifying manufacturing of the parts of the device, one of the tapered surfaces is provided with a friction reducing material and one of the tapered surfaces has a groove (3,4,5,13,14,15,16) extending around the circumference.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: October 25, 1983
    Assignee: Aktiebolaget SKF
    Inventor: Kurt Adelbratt