Joints and connections – Interfitted members with external bridging piece
Patent
1979-03-05
1981-06-02
Lazarus, Ira S.
Joints and connections
Interfitted members with external bridging piece
403109, F16D 306
Patent
active
042703670
ABSTRACT:
A spring loaded, axially slidable, adjustable coupling adapted at one end to fit over a drive means shaft, such as a motor, and adapted at the other end to fit over a driven shaft, such as a pump shaft, wherein this end can receive shafts of varying diameters. The device comprises essentially a hollow cylinder adapted at one end to fit over a drive shaft, a coil spring disposed in the cylinder, a groove formed in the cylinder for nearly its entire length, a second groove formed in the cylinder for nearly its entire length and located 180.degree. from the first groove, a locking device which extends into the two (2) grooves for positioning and holding the spring, and a second cylinder slidably disposed in the first cylinder for compressing the spring. The end of the second cylinder distant from the spring is adapted to fit over driven shafts of various diameters. Both the first and second cylinders have flanges formed on one (1) end thereof and both have longitudinally extending ribs disposed thereon and spaced 90.degree. from the grooves formed in the second cylinder such that equal pressure is distributed on four (4) pressure points of the cylinders when a torque or rotating force is applied to the coupling.
REFERENCES:
patent: 2113651 (1938-04-01), Heaston
patent: 2468182 (1949-04-01), Dempsey
patent: 2977777 (1961-04-01), Bernitz
patent: 3069875 (1962-12-01), Crum, Jr.
patent: 3367138 (1968-02-01), Tiedeman
patent: 3367140 (1968-02-01), Stillwagon, Jr.
Heiner Donald R.
Lazarus Ira S.
Moy Magdalen
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