US5452982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for positioning and supporting trailers on railcars
Assignee: Knorr Brake Holding Corp
•
Filing: 1994-01-07
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Granted: 1995-09-26
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Expires: 2014-01-07
Abstract
Abstract In a system for positioning supporting trailers on stanchions of a railroad car, an optical system is provided to allow the operator to monitor the relationship of the tractor, trailer, stanchion and actuators on the tractor. The unique system of stanchion position indicia is provided to allow rapid and accurate selection of the stanchion position. The tractor includes a positively controlled actuator for operating the breakdown trigger of the stanchion to unlock it.
Inventors
- 👤 Thomas H. Engle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:36
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/02; H04W88/021; B; B61; B61D; B61D45/00; B61D45/001; B61D45/004; B61D45/005
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
124 words
A system for positioning and supporting trailers on a railroad car with a tractor, comprising: stanchion means, on a railroad car and having lowered and raised positions, for receiving and securing a trailer when raised; said stanchion means including lock means for locking said stanchion means in said raised position and trigger means for unlocking said lock means; actuator means on a tractor for interacting with and controlling the raised and lowered position of said stanchion means when said tractor is adjacent said stanchion means; and optical means on said tractor for allowing an operator in a cab of said tractor to monitor the relationship of said tractor, said trailer, said stanchion means and said actuator means and the condition of said trigger means.
Claim 2
Independent Claim
124 words
A system for positioning and supporting trailers on a railroad car with a tractor, comprising: stanchion means, on a railroad car and having lowered and raised positions, for receiving and securing a trailer when raised; said stanchion means including lock means for locking said stanchion means in said raised position and trigger means for unlocking said lock means; actuator means on a tractor for interacting with and controlling the raised and lowered position of said stanchion means when said tractor is adjacent said stanchion means; and optical means on said tractor for allowing an operator in a cab of said tractor to monitor the relationship of said tractor, said trailer, said stanchion means and said actuator means and the condition of said trigger means.
Claim 3
Dependent Claim
25 words
A system according to claim 1, wherein said optical means includes a screen in said cab and a camera for providing images for said screen.
Claim 4
Dependent Claim
12 words
A system according to claim 1, wherein said optical means includes mirrors.
Claim 5
Dependent Claim
49 words
A system according to claim 1, wherein said actuator means includes an actuator having a safe position which does not engage said trigger means when said tractor is adjacent said stanchion means and an unlocking position which actuates said trigger means when said tractor is adjacent said stanchion means.
Claim 6
Dependent Claim
20 words
A system according to claim 4, wherein said actuator includes a fluid motor to move said actuator between said positions.
Claim 7
Independent Claim
120 words
A system for positioning and supporting trailers on a railroad car with a tractor, comprising: stanchion means, on a railroad car and having lowered and raised positions, for receiving and securing a trailer when raised; lock means for locking said stanchion means in said raised position; trigger means for unlocking said lock means; hook means on said tractor for engaging said stanchion means when said tractor is adjacent said stanchion means and allowing raising of said stanchion means; and actuator means on a tractor having a safe position which does not engage said trigger means when said tractor is adjacent said stanchion means and an unlocking position which actuates said trigger means when said tractor is adjacent said stanchion means.
Claim 8
Independent Claim
120 words
A system for positioning and supporting trailers on a railroad car with a tractor, comprising: stanchion means, on a railroad car and having lowered and raised positions, for receiving and securing a trailer when raised; lock means for locking said stanchion means in said raised position; trigger means for unlocking said lock means; hook means on said tractor for engaging said stanchion means when said tractor is adjacent said stanchion means and allowing raising of said stanchion means; and actuator means on a tractor having a safe position which does not engage said trigger means when said tractor is adjacent said stanchion means and an unlocking position which actuates said trigger means when said tractor is adjacent said stanchion means.
Claim 9
Dependent Claim
22 words
A system according to claim 6, wherein said actuator means includes a fluid motor to move said actuator means between said positions.
Claim 10
Dependent Claim
46 words
A system according to claim 6, including a bumper on said trailer for engaging said stanchion means when said tractor is adjacent said stanchion means; and wherein said actuator means' safe position is behind said bumper and said actuator means' unlocking positions is at said bumper.
Claim 11
Dependent Claim
16 words
A system according to claim 8, wherein said actuator means is pivotally mounted to said bumper.
Claim 12
Dependent Claim
25 words
A system according to claim 8, wherein said bumper is a pair of spaced bumpers and said hook means is between said pair of bumpers.
Claim 13
Independent Claim
151 words
A system for positioning and supporting trailers on a railroad car with a tractor, comprising: stanchion means, on a railroad car and having lowered and raised positions, for receiving and securing a trailer when raised; actuator means on a tractor for interacting with and controlling the raised and lowered position of said stanchion means when said tractor is adjacent said stanchion means; said actuator means including hook means for engaging said stanchion means when said tractor is adjacent said stanchion means, and hook operator means for moving said hook means between engage and disengage positions; said stanchion means including receiving means for receiving said hook means; and optical means on said tractor for allowing an operator in a cab of said tractor to monitor the relationship of said tractor, said trailer, said stanchion means and said actuator means and the position of said hook means with respect to said receiving means.
Claim 14
Independent Claim
151 words
A system for positioning and supporting trailers on a railroad car with a tractor, comprising: stanchion means, on a railroad car and having lowered and raised positions, for receiving and securing a trailer when raised; actuator means on a tractor for interacting with and controlling the raised and lowered position of said stanchion means when said tractor is adjacent said stanchion means; said actuator means including hook means for engaging said stanchion means when said tractor is adjacent said stanchion means, and hook operator means for moving said hook means between engage and disengage positions; said stanchion means including receiving means for receiving said hook means; and optical means on said tractor for allowing an operator in a cab of said tractor to monitor the relationship of said tractor, said trailer, said stanchion means and said actuator means and the position of said hook means with respect to said receiving means.
Claim 15
Dependent Claim
68 words
A system according to claim 11, wherein: said stanchion means includes indicium spaced from said receiving means for indicating the minimum spacing from said receiving means at which said hook means should be moved from its disengaged to its engaged position; and said optical means allows said operator in said cab to monitor the position of said hook means with respect to said indicia and said receiving means.
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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) | 1998-09-25 | 1999-03-27 | 1999-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-25 | 2003-03-27 | 2003-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-25 | 2007-03-27 | 2007-09-26 | $7700.00 | Window Closed / Lapsed |