Patent US2772812A successfully refreshed from Google Patents.
Patent US3902603A successfully refreshed from Google Patents.
US3902603A
Expired / Lapsed
US
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Retainer bar assembly for mail carrying rack
Assignee: Banner Metals Inc
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Filing: 1974-07-01
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Granted: 1975-09-02
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Expires: 1994-07-01
Abstract
Abstract A retainer bar assembly is provided comprising a vertical bar pivotally mounted at one corner of a rack to be movable from a stowed position in which trays may be inserted into or removed from the open front of the rack, to a locked operative position in which the bar extends up across the front of the rack to hold the trays securely in the rack, as the rack is transported from one location to another.
Inventors
- 👤 James D Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:25
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/002; B62B3/005; B62B3/02; B62B2202/00; B62B2202/64
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
197 words
In a rack assembly which includes a pair of spaced and parallel upright posts defining an open front end, and a plurality of spaced and parallel elongated horizontal members affixed to the posts to provide support rails on each side of the rack for trays inserted into the rack through the open front end thereof, and a transverse top brace affixed to the tops of the posts; the combination of: a first linkage member having one end coupled to the upper end of one of said posts for pivotal movement about a vertical axis; a vertical bar member having its upper end coupled to the other end of said linkage member for arcuate movement about said vertical axis between a closed position in which the bar extends upwardly across the front of the rack and an open stowed position in which the bar is positioned adjacent to said one of said post members, and which includes a second linkage member having one end coupled to said other end of said first linkage member; and a pin mounted to the other end of said second linkage member and extending down into a slot in said top brace member.
Claim 2
Dependent Claim
197 words
In a rack assembly which includes a pair of spaced and parallel upright posts defining an open front end, and a plurality of spaced and parallel elongated horizontal members affixed to the posts to provide support rails on each side of the rack for trays inserted into the rack through the open front end thereof, and a transverse top brace affixed to the tops of the posts; the combination of: a first linkage member having one end coupled to the upper end of one of said posts for pivotal movement about a vertical axis; a vertical bar member having its upper end coupled to the other end of said linkage member for arcuate movement about said vertical axis between a closed position in which the bar extends upwardly across the front of the rack and an open stowed position in which the bar is positioned adjacent to said one of said post members, and which includes a second linkage member having one end coupled to said other end of said first linkage member; and a pin mounted to the other end of said second linkage member and extending down into a slot in said top brace member.
Claim 3
Dependent Claim
32 words
The combination defined in claim 1, and which includes a spring coupled to the other end of said linkage member and biasing said pin in a direction away from said vertical axis.
References Cited (Backward Citations)
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US2928681A
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US2987782A
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US2987192A
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US3797842A
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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) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |