The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 1993
Filed:
May. 13, 1991
Douglas J Tanner, St. Cloud, MN (US);
General Signal Corporation, Stamford, CT (US);
Abstract
Apparatus for mechanical coupling such as an actuator to a valve includes an elongated drive member having an axial extremity having a drive surface and an elongated driven member having an axial extremity having a drive surface. One of the drive surfaces is an internal surface which has a polygon shaped cross section and one of the drive surfaces is an external drive surface which has a polygon shaped cross section. In some embodiments first and second sleeves including a plurality of wedge surfaces having generally planar faces are inserted between the drive and driven surfaces. In other forms of the invention the internal drive surface has four wedge shaped faces and a single sleeve having wedge shaped faces is inserted between the drive and driven member. The drive and driven members are disposed with the drive surfaces disposed in nested axially overlapping relationship with the wedge shaped surfaces disposed radially intermediate the respective drive surfaces. Apparatus is provided to urge the wedge shaped surfaces of the first and second sleeves intermediate the drive surfaces of the drive and driven member.