US3653704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening means for the doors of freight containers, transport vehicles and the like
Assignee: Rubery Owen and Co Ltd
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Filing: 1970-07-24
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Granted: 1972-04-04
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Expires: 1990-07-24
Abstract
Abstract In fastening mechanism for the door of a freight container or transport vehicle in which an operating bar mounted on the door for angular movement about its axis carries on its ends cams cooperating with keepers on the door frame the cams and keepers are formed by sheet metal pressings.
Inventors
- 👤 John Charles Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:26
CPC Classifications
E; E05; E05B; E05B83/00; E05B83/02; E05B83/08; E05B83/10; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1049
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
177 words
A fastening mechanism for a door of a freight container or transport vehicle in which a vertical operating bar mounted in bearings on the door for angular movement about its axis carries on its top and bottom ends cams which, on angular movement of the bar as the door is closing, engage with keepers on thE frame of the container or vehicle at the top and bottom door opening, wherein a keeper comprises a sheet metal pressing incorporating an attachment plate part of which one end is curved round forwardly and inwardly to provide a planar thrust face inclined, inclined at an acute angle to the attachment plate part and the other end is cranked at right angles to the attachment plate part, and a cam for co-operation with said keeper comprises a sheet metal pressing incorporating aligned lugs having inclined parallel edges for engagement with the thrust face on the keeper and a U-shaped part adapted to fit over the attachment plate part of the keeper in the fully engaged condition of the cam and keeper.
Claim 2
Dependent Claim
177 words
A fastening mechanism for a door of a freight container or transport vehicle in which a vertical operating bar mounted in bearings on the door for angular movement about its axis carries on its top and bottom ends cams which, on angular movement of the bar as the door is closing, engage with keepers on thE frame of the container or vehicle at the top and bottom door opening, wherein a keeper comprises a sheet metal pressing incorporating an attachment plate part of which one end is curved round forwardly and inwardly to provide a planar thrust face inclined, inclined at an acute angle to the attachment plate part and the other end is cranked at right angles to the attachment plate part, and a cam for co-operation with said keeper comprises a sheet metal pressing incorporating aligned lugs having inclined parallel edges for engagement with the thrust face on the keeper and a U-shaped part adapted to fit over the attachment plate part of the keeper in the fully engaged condition of the cam and keeper.
Claim 3
Dependent Claim
45 words
Fastening mechanism as in claim 1 wherein the relative dimensions of said keeper and cam are such that in the fully engaged condition of these members the cam is confined between the thrust face on the keeper and the cranked opposite end of the keeper.
Claim 4
Dependent Claim
154 words
Fastening mechanism for a door of a freight container or transport vehicle in which a vertical operating bar mounted in bearings on the door for angular movement about its axis carries on its top and bottom ends cams which, on angular movement of the bar as the door is closing, engage with keepers on the frame of the container or vehicle at the top and bottom of the door opening, wherein the keepers and cams are formed as sheet metal pressings and at least one keeper comprises a flat attachment plate part of which one end is curved round forwardly and inwardly to provide a planar thrust face inclined at an acute angle to the attachment plate part for engagement by a complementary part of one end of a cam and the other end is cranked at right angles to the attachment part and provides an abutment for the other end of the cam.
Claim 5
Dependent Claim
154 words
Fastening mechanism for a door of a freight container or transport vehicle in which a vertical operating bar mounted in bearings on the door for angular movement about its axis carries on its top and bottom ends cams which, on angular movement of the bar as the door is closing, engage with keepers on the frame of the container or vehicle at the top and bottom of the door opening, wherein the keepers and cams are formed as sheet metal pressings and at least one keeper comprises a flat attachment plate part of which one end is curved round forwardly and inwardly to provide a planar thrust face inclined at an acute angle to the attachment plate part for engagement by a complementary part of one end of a cam and the other end is cranked at right angles to the attachment part and provides an abutment for the other end of the cam.
Claim 6
Dependent Claim
129 words
Fastening mechanism for a door of a freight container or transport vehicle in which a vertical operating bar mounted in bearings on the door for angular movement about its axis carries on its top and bottom ends cams which, on angular movement of the bar as the door is closing, engage with keepers on the frame of the container or vehicle at the top and bottom of the door opening, wherein the keepers and cams are formed as sheet metal pressings and at least one cam comprises a U-shaped part adapted to fit over a part of a keeper and having at one end spaced aligned lugs with inclined edges for engagement with a complementary thrust face on a keeper when the cam is fully engaged with the keeper.
Claim 7
Dependent Claim
129 words
Fastening mechanism for a door of a freight container or transport vehicle in which a vertical operating bar mounted in bearings on the door for angular movement about its axis carries on its top and bottom ends cams which, on angular movement of the bar as the door is closing, engage with keepers on the frame of the container or vehicle at the top and bottom of the door opening, wherein the keepers and cams are formed as sheet metal pressings and at least one cam comprises a U-shaped part adapted to fit over a part of a keeper and having at one end spaced aligned lugs with inclined edges for engagement with a complementary thrust face on a keeper when the cam is fully engaged with the keeper.
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |