Mechanical coupling particularly adapted for coupling a valve an

Details Mechanical coupling particularly adapted for coupling a valve an Mechanical coupling particularly adapted for coupling a valve an

1991-05-13

1993-01-05

Kundrat, Andrew V.

Joints and connections

Interfitted members

Radially interposed shim or bushing

403371, 403374, 403344, B25G 320

Patent

active

051764644

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.

REFERENCES:
patent: 172689 (1876-01-01), Barrett
patent: 444579 (1891-01-01), Jackson
patent: 1130409 (1915-03-01), Kirk
patent: 1501465 (1924-07-01), Peck
patent: 3222884 (1965-12-01), Lyle
patent: 3501183 (1970-03-01), Stratienko
patent: 3563581 (1971-02-01), Sommerstein
patent: 4555199 (1985-11-01), Maier et al.
Ringfender Brochure 4 pages, Figures titled "Locking Elements" by Ringfender Corp.

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