Patent EP0517213A2 successfully refreshed from Google Patents.
US4244476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Racking
Assignee: Acrow Automation Ltd
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Filing: 1979-06-27
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Granted: 1981-01-13
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Expires: 1999-06-27
Abstract
Abstract Locking means for racking of the type comprising metal uprights having sockets, e.g. pressed out of a web portion, and beams the ends of which are provided with hooks to engage in the sockets of the upright. The locking means comprises a magnet which is attached to the metal upright and positioned between a stop on the metal upright and an abutment surface on a beam to prevent upward movement of the beam and disengagement of the hooks.
Inventors
- 👤 Alexander R. Tang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:17
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/30; A47B57/40; A47B57/402; F; F16; F16B; F16B2200/00; F16B2200/69; Y; Y10; Y10S; Y10S403/00; Y10S403/01
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
124 words
Racking of the type comprising metal uprights having sockets and beams having ends provided with hooks which are adapted to engage said sockets on the uprights wherein a stop is provided on said metal uprights and an abutment surface is provided on said beams and a locking member comprising a magnet positioned and magnetically held in place against said metal upright between said stop on a metal support and said abutment surface of a beam when said hooks of said beam are engaged in said sockets on said metal upright, the locking member having abutment surfaces adapted to bear against said stop and said abutment surface on the beam respectively thereby limiting movement of said beam preventing removal of said hooks from said sockets.
Claim 2
Dependent Claim
124 words
Racking of the type comprising metal uprights having sockets and beams having ends provided with hooks which are adapted to engage said sockets on the uprights wherein a stop is provided on said metal uprights and an abutment surface is provided on said beams and a locking member comprising a magnet positioned and magnetically held in place against said metal upright between said stop on a metal support and said abutment surface of a beam when said hooks of said beam are engaged in said sockets on said metal upright, the locking member having abutment surfaces adapted to bear against said stop and said abutment surface on the beam respectively thereby limiting movement of said beam preventing removal of said hooks from said sockets.
Claim 3
Dependent Claim
54 words
Racking according to claim 1 wherein said uprights have a central web and each socket is formed by pressing out a portion of said central web to provide a louvre having a flat face spaced from the plane of said central web and overlying a socket aperture from which the louvre has been removed.
Claim 4
Dependent Claim
20 words
Racking according to claim 2 wherein said stop comprises an abutment surface formed at the lower edge of a louvre.
Claim 5
Dependent Claim
23 words
Racking according to claim 1 wherein a hook of said beam is provided with an abutment surface for bearing against said locking member.
Claim 6
Dependent Claim
13 words
Racking according to claim 1 wherein said locking member comprises a bar magnet.
Claim 7
Dependent Claim
22 words
Racking according to claim 1 wherein said locking member comprises a magnet in which the poles are located at its major surfaces.
Claim 8
Dependent Claim
13 words
Racking according to claim 1 wherein said locking member comprises a pot magnet.
Claim 9
Dependent Claim
28 words
Racking according to claim 7 wherein said locking member has a major surface not in contact with the upright edges bounding said major surface being chamfered or radiused.
Claim 10
Dependent Claim
37 words
Racking according to claim 1 wherein said locking member includes a pin projecting from that surface in contact with the upright, and said upright is formed with a portion defining an aperature through which said pin extends.
Claim 11
Dependent Claim
13 words
Racking according to claim 9 wherein said pin is made of plastics material.
Claim 12
Dependent Claim
177 words
Racking of the type comprising metal uprights having sockets and beams having ends provided with hooks which are adapted to engage said sockets on the uprights wherein said uprights have a central web and each socket is formed by pressing out a portion of said central web to provide a louvre having a flat face spaced from the plane of said central web and overlaying a socket aperture from which the louvre has been removed, the louvre having a lower edge forming a stop, an abutment surface is provided on an upper edge of a hook of said beams and a locking member comprising a magnet positioned and magnetically held in place against said metal upright between said stop on a metal support and said abutment surface of a beam when said hooks of said beam are engaged in said sockets on said metal upright, the locking member having upper and lower abutment surfaces adapted to bear against said stop and said abutment surface on the beam respectively thereby preventing removal of said hooks from said socket.
Claim 13
Dependent Claim
177 words
Racking of the type comprising metal uprights having sockets and beams having ends provided with hooks which are adapted to engage said sockets on the uprights wherein said uprights have a central web and each socket is formed by pressing out a portion of said central web to provide a louvre having a flat face spaced from the plane of said central web and overlaying a socket aperture from which the louvre has been removed, the louvre having a lower edge forming a stop, an abutment surface is provided on an upper edge of a hook of said beams and a locking member comprising a magnet positioned and magnetically held in place against said metal upright between said stop on a metal support and said abutment surface of a beam when said hooks of said beam are engaged in said sockets on said metal upright, the locking member having upper and lower abutment surfaces adapted to bear against said stop and said abutment surface on the beam respectively thereby preventing removal of said hooks from said socket.
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) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |