US3583573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
End-of-railway-car cushioning installation
Assignee: Pullman Standard Inc
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Filing: 1969-02-14
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Granted: 1971-06-08
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Expires: 1989-02-14
Abstract
Abstract A railway car includes a center sill having at opposite ends thereof an end-of-car cushion installation, each including a hydraulic cushioning device having a cylinder retained in a cushion pocket by a fixed stop comprising a pair of transversely aligned apertures in a center sill with a stop block carried in said apertures and welded to said sill. The cylinder includes a base plate which is secured between said stop block and a pair of removable stop brackets on said sill. A yoke and coupler arrangement includes a laterally projecting wall which with a pair of removable stop brackets on opposite sides of the yoke forms a pair of spring pockets in which leaf springs are supported and which after a draft impact return the device to a neutral position.
Inventors
- 👤 Willis H Knippel
- 👤 Marvin Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:44
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
324 words
A railway car having an underframe including a center sill providing at opposite ends of the car open end cushion unit pockets, said center sill comprising a top horizontal wall and vertical sidewalls connected thereto and extending downwardly in relative inverted U-shaped configuration, a hydraulic cushioning installation in each cushion pocket, including a cylinder having a connecting base plate at one end thereof, a piston assembly including a piston and rod slidably disposed lengthwise in said cylinder, a coupler housing supported for sliding movement in said pocket and connected to said rod for moving said piston assembly during buff and draft impacts lengthwise within said cylinder from a neutral position to an operative position, said housing having a rear wall and a spring disposed between said rear wall and said cylinder, said sill having a buff and draft force stop arrangement to provide for endwise removal of the cushion unit, piston assembly and coupler housing from the cushion pocket comprising; means anchoring said base plate on said center sill comprising a portion of said center sill having a pair of vertically extending aligned first apertures longitudinally spaced on one transverse side of said base plate in said sidewalls, a rigid buff stop supported in said first apertures including a vertically extending plate connected to said sill and restraining said cylinder against lengthwise movement in one direction, said sidewalls having a pair of aligned second apertures longitudinally spaced on the opposite transverse side of said base plate, and first removable draft stops projecting through said second apertures and restraining said base plate against movement in an opposite direction, said sidewalls having a pair of third aligned apertures longitudinally spaced forwardly of said housing rear wall, said housing rear wall having laterally projecting abutment means, and second removable draft stops projecting through said third apertures and in the path of movement of the abutment means for engagement of the abutment means therewith during a draft impact.
Claim 2
Dependent Claim
324 words
A railway car having an underframe including a center sill providing at opposite ends of the car open end cushion unit pockets, said center sill comprising a top horizontal wall and vertical sidewalls connected thereto and extending downwardly in relative inverted U-shaped configuration, a hydraulic cushioning installation in each cushion pocket, including a cylinder having a connecting base plate at one end thereof, a piston assembly including a piston and rod slidably disposed lengthwise in said cylinder, a coupler housing supported for sliding movement in said pocket and connected to said rod for moving said piston assembly during buff and draft impacts lengthwise within said cylinder from a neutral position to an operative position, said housing having a rear wall and a spring disposed between said rear wall and said cylinder, said sill having a buff and draft force stop arrangement to provide for endwise removal of the cushion unit, piston assembly and coupler housing from the cushion pocket comprising; means anchoring said base plate on said center sill comprising a portion of said center sill having a pair of vertically extending aligned first apertures longitudinally spaced on one transverse side of said base plate in said sidewalls, a rigid buff stop supported in said first apertures including a vertically extending plate connected to said sill and restraining said cylinder against lengthwise movement in one direction, said sidewalls having a pair of aligned second apertures longitudinally spaced on the opposite transverse side of said base plate, and first removable draft stops projecting through said second apertures and restraining said base plate against movement in an opposite direction, said sidewalls having a pair of third aligned apertures longitudinally spaced forwardly of said housing rear wall, said housing rear wall having laterally projecting abutment means, and second removable draft stops projecting through said third apertures and in the path of movement of the abutment means for engagement of the abutment means therewith during a draft impact.
Claim 3
Dependent Claim
33 words
The invention in accordance with claim 1, said sidewalls having lower outwardly projecting flanges, said stop plate projecting outwardly of said sidewalls and being connected along substantially the upper surface of said flanges.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |