Hopper railroad car having top hatch cover assembly
US-12286141-B2 · Apr 29, 2025 · US
Railway car hatch cover latch
US10661815B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10661815-B2 |
| Application number | US-201715827418-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 30, 2017 |
| Priority date | Nov 30, 2017 |
| Publication date | May 26, 2020 |
| Grant date | May 26, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
The present railway car hatch cover latch assembly includes a latch plate. One end of the latch assembly rod is affixed to a bracket, with the adjustable end usually comprising an eye at the end of a threaded shaft. The threaded shaft is received in a keeper. The keeper in turn supports and holds a coil spring between the eye and the keeper cap. A bent hooking rod has two upturned ends that hold the end of the coil spring nearest the eye. The center of the bent hooking rod extends from the keeper to form a receiver. A latch plate includes a pivot rod that extends through the receiver of the bent hooking rod. The latch paddle itself contacts and holds the hatch cover is a compressively closed position against the railway car hatch ring.
First claim
Opening claim text (preview).
What is claimed is: 1. A railway car hatch cover latch assembly comprising a hatch cover, a latch plate, a hatch ring of a railway car, support brackets having a latch plate support rod, a shaft having an eye at one end of the shaft, the latch plate support rod extending through the shaft eye, a keeper having an open end to receive a second end of the shaft, the keeper also having a cap end, a coil spring between the eye of the shaft and the cap end of the keeper, a hooking rod having two upturned ends that hold an end of the coil spring nearest the eye of the shaft, a center of the bent hooking rod extending from the keeper cap end to form a receiver, a latch plate pivot rod extending through the receiver of the bent hooking rod, wherein the latch plate contacts and holds the hatch cover in a compressively closed position against the hatch ring of the railway car when the latch assembly is closed. 2. The railway car hatch cover latch assembly of claim 1 wherein the second end of the shaft is threaded to allow for an adjustable amount of insertion into the open end of the keeper. 3. The railway car hatch cover latch assembly of claim 1 wherein the coil spring is compressed upon closing of the latch assembly such that the latch plate holds the hatch cover in the compressively closed position. 4. The railway car hatch cover latch assembly of claim 1 wherein the coil spring is un-compressed upon opening of the latch assembly. 5. A railway car hatch cover latch assembly comprising a hatch cover, a latch plate, a hatch ring of a railway car, support brackets on the hatch ring holding a latch plate support rod, a shaft having an eye at one end of the shaft, the latch plate support rod extending through the shaft eye, a keeper having an open end to receive a second end of the shaft, the keeper also having a cap end, a coil spring surrounding the shaft and located between the eye of the shaft and the cap end of the keeper, a hooking rod having two upturned ends that provide a stop for an end of the coil spring nearest the eye of the shaft, a center of the bent hooking rod extending from the keeper cap end to form a receiver, a latch plate pivot rod extending through the receiver of the bent hooking rod, wherein the latch plate contacts and holds the hatch cover in a compressively closed position against the hatch ring of the railway car when the latch assembly is closed. 6. The railway car hatch cover latch assembly of claim 1 wherein the second end of the shaft is threaded to allow for an adjustable amount of insertion into the open end of the keeper. 7. The railway car hatch cover latch assembly of claim 1 wherein the coil spring is compressed upon closing of the latch assembly such that the latch plate holds the hatch cover in the compressively closed position. 8. The railway car hatch cover latch assembly of claim 1 wherein the coil spring is un-compressed upon opening of the latch assembly.
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Frequently asked questions
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- What does patent US10661815B2 cover?
- The present railway car hatch cover latch assembly includes a latch plate. One end of the latch assembly rod is affixed to a bracket, with the adjustable end usually comprising an eye at the end of a threaded shaft. The threaded shaft is received in a keeper. The keeper in turn supports and holds a coil spring between the eye and the keeper cap. A bent hooking rod has two upturned ends that hol…
- Who is the assignee on this patent?
- Amsted Rail Co Inc
- What technology area does this patent fall under?
- Primary CPC classification B61D17/16. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 26 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).