Patent US3626865A successfully refreshed from Google Patents.
US3626865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor-actuated railway hopper car doors
Assignee: Pullman Standard Inc
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Filing: 1970-01-05
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Granted: 1971-12-14
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Expires: 1990-01-05
Abstract
Abstract In a hopper car having a pair of bottom hopper doors opening from the center laterally outward to the side, door-operating mechanism on each side of the car for each door comprising a side mounted air cylinder having a ram moving outwardly to move a rolling or slidable carriage to which is universally connected a door arm link which in turn is universally connected to a doorlocking bar mounted on the door and biased to open whereupon when the air cylinder operated ram retracts the door is swung from a down generally vertically hanging position to an upright horizontal position with the lock bar locking the door to the center structure on the car, there being a similar cylinder carriage and door link arrangement for closing and opening a laterally opposed door on the other side of the car.
Inventors
- 👤 Herman A Aquino
- 👤 James J Schuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:43
CPC Classifications
B; B61; B61D; B61D7/00; B61D7/14; B61D7/16; B61D7/24; B61D7/28; B65; B65D; B65D90/00; B65D90/54; B65D90/62; B65D90/623
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
161 words
In a hopper means having bottom discharge means, door operating mechanism for hopper discharge door means, said door operating mechanism comprising: a car side mounted power means, longitudinally extending drive means being in longitudinal alignment with and connecting with said power means, said longitudinal drive means including a slidable carriage, door arm link means having a universal connection with said carriage and having a universal connection with said door means, said door means including door lock means reciprocably mounted thereon and having biasing means urging the lock means to a door open position, said carriage means holding said door arm link means in an overcenter locked position wherein said door arm link means urges said lock means into the locked position with the door means being closed, said power means moving said carriage and said door means thereby to a door open position with first releasing door lock means and then allowing said door means to move to the open position.
Claim 2
Dependent Claim
161 words
In a hopper means having bottom discharge means, door operating mechanism for hopper discharge door means, said door operating mechanism comprising: a car side mounted power means, longitudinally extending drive means being in longitudinal alignment with and connecting with said power means, said longitudinal drive means including a slidable carriage, door arm link means having a universal connection with said carriage and having a universal connection with said door means, said door means including door lock means reciprocably mounted thereon and having biasing means urging the lock means to a door open position, said carriage means holding said door arm link means in an overcenter locked position wherein said door arm link means urges said lock means into the locked position with the door means being closed, said power means moving said carriage and said door means thereby to a door open position with first releasing door lock means and then allowing said door means to move to the open position.
Claim 3
Dependent Claim
147 words
In a hopper means having bottom discharge means, door operating mechanism for hopper discharge door means, said door operating mechanism comprising: a car side mounted power means, longitudinally extending drive means being in longitudinal alignment with and connecting with said power means, said longitudinal drive means including a slidable carriage, door arm link means having a pivotal connection with said carriage and having a pivotal connection with said door means, said door means including door lock means reciprocably mounted thereon said carriage means holding said door link arm means in an over center locked position wherein said door link means urges said lock means into the locked position with the door means being closed, said power means moving said carriage and said door means thereby to a door-open position with first releasing door lock means and then allowing said door means to move to the open position.
Claim 4
Dependent Claim
147 words
In a hopper means having bottom discharge means, door operating mechanism for hopper discharge door means, said door operating mechanism comprising: a car side mounted power means, longitudinally extending drive means being in longitudinal alignment with and connecting with said power means, said longitudinal drive means including a slidable carriage, door arm link means having a pivotal connection with said carriage and having a pivotal connection with said door means, said door means including door lock means reciprocably mounted thereon said carriage means holding said door link arm means in an over center locked position wherein said door link means urges said lock means into the locked position with the door means being closed, said power means moving said carriage and said door means thereby to a door-open position with first releasing door lock means and then allowing said door means to move to the open position.
Claim 5
Dependent Claim
23 words
The invention according to claim 2, and said door arm means having a universal connection with said carriage and with said door means.
Claim 6
Dependent Claim
67 words
The invention according to claim 2, and biasing means on said door means at said door lock means and a door stop on said door means wherein said biasing means urges said door lock means towards said stop in the unlocked door position, said power means in the door-locking position overcoming said biasing means and causing said lock means to lock the door means to the car.
Claim 7
Dependent Claim
40 words
The invention according to claim 2, and said power means comprising: a fluid cylinder and a ram within the cylinder and said ram having a member connecting with said carriage and operable thereupon for opening and closing the door means.
Claim 8
Dependent Claim
34 words
The invention according to claim 2, and said lock means including a locking bar extenDing laterally on the door means and positionable into locking position of the door with respect to the hopper means.
Claim 9
Dependent Claim
51 words
The invention according to claim 2, and guide means for said carriage, said carriage being longitudinally reciprocal in said guide means attendant to moving said door link arm length means from a lateral overcenter-locking position to a longitudinally extending door unlocked and open position past overcenter from the locked overcenter position.
Claim 10
Dependent Claim
19 words
The invention according to claim 7, and said carriage means having a sliding frictional contact with said guide means.
Claim 11
Dependent Claim
20 words
The invention according to claim 7, and said carriage means having roller means engaging said guide means for rolling movement.
Claim 12
Dependent Claim
177 words
In a railroad car having hopper means provided with horizontal extending bottom hopper door means, door-operating means being disposed beneath and to the side of said hopper means, said door-operating means comprising: a fluid-operated door operating power means in the form of a double acting fluid jack means, said jack means being car side mounted, carriage means having longitudinally extending drive means connecting with said jack means attendant to reciprocating said carriage means in a longitudinal direction, said carriage means being car side mounted and in longitudinal alignment with said jack means, door arm means having a pivotal connection with said carriage means, door lock bar means mounted on said door means and having biasing means urging said lock bar means in the door unlocking direction, said door arm means having a pivotal connection with said door lock bar means whereby upon moving of the power means towards a door opening position the door arm means moves from a locking overcenter position into the unlocked position with consequent movement of the door means to the open position.
Claim 13
Dependent Claim
177 words
In a railroad car having hopper means provided with horizontal extending bottom hopper door means, door-operating means being disposed beneath and to the side of said hopper means, said door-operating means comprising: a fluid-operated door operating power means in the form of a double acting fluid jack means, said jack means being car side mounted, carriage means having longitudinally extending drive means connecting with said jack means attendant to reciprocating said carriage means in a longitudinal direction, said carriage means being car side mounted and in longitudinal alignment with said jack means, door arm means having a pivotal connection with said carriage means, door lock bar means mounted on said door means and having biasing means urging said lock bar means in the door unlocking direction, said door arm means having a pivotal connection with said door lock bar means whereby upon moving of the power means towards a door opening position the door arm means moves from a locking overcenter position into the unlocked position with consequent movement of the door means to the open position.
Claim 14
Dependent Claim
135 words
In a railroad car having hopper means provided with horizontal extending bottom hopper door means, door-operating means being disposed beneath and to the side of said hopper means, said door operating means comprising: a fluid operated door-operating power means, said power means being car side mounted, carriage means having longitudinally extending drive means connecting with said jack means attendant to reciprocating carriage means in a longitudinal direction, door arm means having a pivotal connection with said carriage means, door lock means mounted on said door means, said door arm means having a pivotal connection with said door lock means whereby upon moving of the power means toward a door opening position the arm means moves from a locking overcenter position to an unlocked position with consequent movement of the door means to the open position.
Claim 15
Dependent Claim
135 words
In a railroad car having hopper means provided with horizontal extending bottom hopper door means, door-operating means being disposed beneath and to the side of said hopper means, said door operating means comprising: a fluid operated door-operating power means, said power means being car side mounted, carriage means having longitudinally extending drive means connecting with said jack means attendant to reciprocating carriage means in a longitudinal direction, door arm means having a pivotal connection with said carriage means, door lock means mounted on said door means, said door arm means having a pivotal connection with said door lock means whereby upon moving of the power means toward a door opening position the arm means moves from a locking overcenter position to an unlocked position with consequent movement of the door means to the open position.
Claim 16
Dependent Claim
16 words
The invention according to claim 11, and said power means including a double-acting fluid jack means.
Claim 17
Dependent Claim
21 words
The invention according to claim 11, and said carriage means being side mounted and in longitudinal alignment with said power means.
Claim 18
Dependent Claim
28 words
The invention according to claim 11, and car side mounted guide means, carriage means including roller means for rolling movement of the carriage means in the guide means.
Claim 19
Dependent Claim
28 words
The invention according to claim 11, and car side mounted guide means, carriage means including sliding means for sliding movement of the carriage means in the guide means.
Claim 20
Dependent Claim
20 words
The invention according to claim 11, and biasing means engaging and urging said locking means in the door unlocking direction.
Claim 21
Dependent Claim
15 words
The invention according to claim 16, and said door lock means including a locking bar.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |