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 Title: |
US4640037:
Trawl doors
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Ashworth, John F. H.; East Drayton, Retford, Nottinghamshire DN22 OLF, United Kingdom
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| Assignee: |
None
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| Published / Filed: |
1987-02-03
/ 1983-03-01
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| Application Number: |
US1983000471027
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| IPC Code: |
Advanced:
A01K 73/045;
Core:
A01K 73/00;
IPC-7:
A01K 73/02;
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| U.S. Class: |
Current:
043/009.7;
Original:
043/009;
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| Field of Search: |
043/009
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| Priority Number: |
| 1982-03-02 |
GB1982000006130 |
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| Abstract: |
A member (3) is pivotally mounted on the inner face of a trawl door 1, and said member can be attached to a trawl warp which is attached to a trawler. A resilient connection (12) is provided between the member and a point on the inner face of the trawl door. The outer face of the trawl door is provided with a backstrop (42) fixed to the trawl door through an aperture (33). A resilient attachment (42a) is connected between the backstrop and a further aperture (38).
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| Attorney, Agent or Firm: |
Garland, H. Mathews ;
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| Primary / Asst. Examiners: |
Jordan, M.;
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Family: |
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First Claim:
Show all 9 claims |
I claim:
1. A trawl door comprising a body having inner concave and outer convex faces and having forward and rearward ends, a rigid bar member pivotally mounted on said inner face of said body for movement about a first axis extending lengthwise of said body, mounting means between the said bar member and said inner body face for mounting said bar member at a plurality of different lateral positions to calibrate said door to different operating conditions, means connected with said bar member for attaching a trawl warp to said bar member from a trawler, means on said outer face to said door to attach backstrops which are attachable to a trawl, and a resilient connection is provided between said bar member and a point on the inner face between said bar member and the rearward end.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
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