Railway cushioning apparatus

Details Railway cushioning apparatus Railway cushioning apparatus

1986-09-25

1988-04-26

Dorner, Kenneth J.

Railway draft appliances

Cushioned

Springs

213 8, 213 40R, B61G 902

Patent

active

047398892

ABSTRACT:
A cushioning apparatus for a railway car includes a housing having a cylinder bore disposed therein with an end plate closing one end of the cylinder bore. A piston assembly includes a shaft extending through the end plate and a piston disposed on the shaft and slidably received within the cylinder bore. The piston is slidable between an axially innermost position furthest from the end plate and an axially outermost position closest to the end plate. A limit pin has an interference fit within a pin bore of the end plate and extends outward therefrom toward the piston for initially limiting axially outward movement of the piston short of its axially outermost position to thereby limit a length of the cushioning apparatus prior to installation of the cushioning apparatus in a railway car.

REFERENCES:
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patent: 2039268 (1936-04-01), Barrows
patent: 2944639 (1960-07-01), Blake
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patent: 3491993 (1970-01-01), Scholin et al.
patent: 3554387 (1971-01-01), Thornhill
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patent: 3651953 (1972-03-01), Knippel et al.
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patent: 4113113 (1978-09-01), Reinhardt et al.
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Exhibit A-Brochure dated May 1, 1984, of Driv-Lok, Inc., of Sycamore, Illinois.
Exhibit B-Brochure of Groov-Pin Corp., of Ridgefield, New Jersey.

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