Patent US3648909A successfully refreshed from Google Patents.
US3648909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrying tray
Assignee: Bishop Wisecarver Corp
•
Filing: 1970-08-26
•
Granted: 1972-03-14
•
Expires: 1990-08-26
Abstract
Abstract A tray with a pivot support in each corner with carrying handles on the opposite ends of the tray being foldable on said pivots to the bottom of the tray and which can be extended into upright position for carrying a loaded tray. Each end structure for the pivots forms a downwardly open nesting pocket and an upwardly extended nesting flange so formed that the trays with the folded handles can be nested one on top of the other. Each pivot is so positioned relatively to the handle and the bottom of the tray that the pivot flange of the handle bears against the bottom in the upright position. Each handle has a central opening with opposite curved edge flanges to form a grip, and in the preferred form has a bracing flange adapted to the clamp over the top nesting flange of the adjacent end member.
Inventors
- 👤 Warren R Wisecarver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:47
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/0209; B65D21/0226; B65D7/00; B65D7/12; B65D7/24; B65D7/26
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
221 words
In a carrying tray having a tray portion with sides and foldable handles at opposite ends of the tray portion, the improvement of a pivot support in each corner of the tray portion, comprising an end strip substantially at right angles to the adjacent side forming said corner, said end strip extending along the adjacent end of the tray, a flange along each edge of each handle, a bearing portion on the end of each flange adjacent said corner, a pivot spaced from the adjacent end and extended through said side and through said bearing portion of said handle flange at said corner, said handle being foldable about said pivot away from said end and inwardly of the tray thereby to lie above the bottom of the tray in folded attitude, a top nesting flange on the outside of each end strip, a coacting nesting flange facing toward the bottom of each end being nestable on a similar top nesting flange of another tray, a nesting portion of each handle adapted to be nested in the upright position of said handle on said coacting nesting flange of a tray stacked thereon, said edge flanges being so formed relative to the top of the respective handles as to direct the stacked load on the handle outwardly relative to the adjacent tray end.
Claim 2
Dependent Claim
221 words
In a carrying tray having a tray portion with sides and foldable handles at opposite ends of the tray portion, the improvement of a pivot support in each corner of the tray portion, comprising an end strip substantially at right angles to the adjacent side forming said corner, said end strip extending along the adjacent end of the tray, a flange along each edge of each handle, a bearing portion on the end of each flange adjacent said corner, a pivot spaced from the adjacent end and extended through said side and through said bearing portion of said handle flange at said corner, said handle being foldable about said pivot away from said end and inwardly of the tray thereby to lie above the bottom of the tray in folded attitude, a top nesting flange on the outside of each end strip, a coacting nesting flange facing toward the bottom of each end being nestable on a similar top nesting flange of another tray, a nesting portion of each handle adapted to be nested in the upright position of said handle on said coacting nesting flange of a tray stacked thereon, said edge flanges being so formed relative to the top of the respective handles as to direct the stacked load on the handle outwardly relative to the adjacent tray end.
Claim 3
Dependent Claim
60 words
The improvement specified in claim 1, and said pivot being spaced from the bottom end of said bearing portion in the upright position of said handle to about the same distance as from the bottom of the tray whereby the bottom edge of the handle flange bears against the bottom of the tray in said upright position of the handle.
Claim 4
Dependent Claim
27 words
The improvement specified in claim 2, and said coacting nesting flange forming a pocket on the outside of the adjacent end and being open toward the bottom.
Claim 5
Dependent Claim
64 words
The improvement specified in claim 1, and said top nesting flange and said coacting nesting flange including a spacer flange extended from each end strip outwardly, a substantially perpendicular wall extended upwardly from said spacer flange so as to project to above said end strip, and a wall extended downwardly from said spacer flange spaced from said end strip to form a nesting pocket.
Claim 6
Dependent Claim
38 words
The improvement specified in claim 4, and a top nesting flange extending from said substantially perpendicular wall, and clamping means extended from said handle for engagement with said top nesting flange in the upright position of said handle.
Claim 7
Dependent Claim
40 words
The improvement specified in claim 5, wherein said clamping means consists of an outwardly extending horizontal flange with a lip along its free edge adapted to be snapped over said top nesting flange thereby to hold and brace said handle.
Claim 8
Dependent Claim
46 words
The improvement specified in claim 5 and each handle having an opening, cross-sectionally curved lips along the top of each handle and along the top edge of said opening, curved oppositely toward one another and spaced so as to form a grip portion on said handle.
Claim 9
Dependent Claim
66 words
The invention specified in claim 7, and said clamping means including, a clamping fLange extended outwardly from said handle in substantial registry with and for engagement with said top nesting flange in the upright position of said handle thereby to hold and brace said handle in said upright position, and a clamping lip on said clamping flange adapted to be sprung over said top nesting flange.
Claim 10
Dependent Claim
29 words
The improvement specified in claim 8, and a bearing portion of each end strip extending over the respective adjacent sides at said corners forming part of the pivot supports.
References Cited (Backward Citations)
US3124254A
Cited
CA700406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |