Patent US4557200A successfully refreshed from Google Patents.
US4557200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tray with folding legs
Assignee: A GENERAL PARTNERSHIP GEORGE PETERSON"
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Filing: 1983-08-15
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Granted: 1985-12-10
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Expires: 2003-08-15
Abstract
Abstract A generally rectangular tray having a pair of legs pivoted on the tray at opposite sides thereof for swinging between a folded position and an unfolded position in which the legs extend down from the tray for supporting it. Each leg has spaced apart side portions interconnected for resilient springing movement of the side portions with respect to one another, latches engageable by the legs for releasably latching the legs in folded position and actuators operable by a person holding the tray at opposite sides thereof for springing the side portions of each leg with respect to one another to move the legs out of latching engagement with their respective latches. This disengagement enables the legs to swing down by gravity from their folded position to their unfolded position for supporting the tray.
Inventors
- 👤 Robert C. Geschwender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:03
CPC Classifications
A; A47; A47B; A47B23/00; A47B23/001
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
221 words
A generally rectangular tray having a pair of legs pivoted on the underside of the tray at opposite sides thereof for swinging between a folded position in which the legs are folded up adjacent the underside of the tray and an unfolded position in which the legs extend down from the tray for supporting it, each leg having spaced apart side portions interconnected for resilient springing movement of the side portions with respect to one another, latches on the underside of the tray for releasably latching the legs in folded position, and actuator means on the tray engageable with said legs and operable by a person while holding the tray in a serving position for springing the side portions of each leg with respect to one another thereby to disengage the legs from their respective latches for enabling the legs to swing down by gravity from their folded position to their unfolded position for supporting the tray, said actuator means comprising a pair of actuators movably mounted on said opposite sides of the tray and positioned generally midway of respective sides whereby said actuators may be moved by hand while holding the tray in said serving position with both hands positioned generally midway of said opposite sides thereby to spring respective side portions of respective legs with respect to one another.
Claim 2
Dependent Claim
221 words
A generally rectangular tray having a pair of legs pivoted on the underside of the tray at opposite sides thereof for swinging between a folded position in which the legs are folded up adjacent the underside of the tray and an unfolded position in which the legs extend down from the tray for supporting it, each leg having spaced apart side portions interconnected for resilient springing movement of the side portions with respect to one another, latches on the underside of the tray for releasably latching the legs in folded position, and actuator means on the tray engageable with said legs and operable by a person while holding the tray in a serving position for springing the side portions of each leg with respect to one another thereby to disengage the legs from their respective latches for enabling the legs to swing down by gravity from their folded position to their unfolded position for supporting the tray, said actuator means comprising a pair of actuators movably mounted on said opposite sides of the tray and positioned generally midway of respective sides whereby said actuators may be moved by hand while holding the tray in said serving position with both hands positioned generally midway of said opposite sides thereby to spring respective side portions of respective legs with respect to one another.
Claim 3
Dependent Claim
22 words
A tray as set forth in claim 1 wherein said latches are also adapted for latching said legs in said unfolded position.
Claim 4
Dependent Claim
36 words
A tray as set forth in claim 1 wherein said actuators are adapted for springing the side portions of each leg away from one another to move the legs out of engagement with said latch means.
Claim 5
Dependent Claim
42 words
A tray as set forth in claim 3 wherein said actuators are in the form of buttons operatively connected to said legs and slidable in slots in the tray for springing respective side portions of the legs with respect to one another.
Claim 6
Dependent Claim
32 words
A tray as set forth in claim 4 wherein said actuator buttons are disposed within recesses in the tray so that the buttons do not project above the top of the tray.
Claim 7
Dependent Claim
88 words
A tray as set forth in claim 1 wherein the side portions of each leg have end portions bent generally at right angles with respect to the side portions and journaled in a pair of pivot members on the underside of the tray for enabling the leg to swing between its folded and unfolded positions, each actuator having an operative connection with one end portion of a respective leg side portion whereby movement of the actuator effects springing of respective leg side portions with respect to one another.
Claim 8
Dependent Claim
54 words
A tray as set forth in claim 6 wherein said latch means comprises a latch member on one pivot member of each pair of pivot members, said latch member having a first notch therein for receiving a respective side portion of a respective leg releasably to latch the leg in its unfolded tray-supporting position.
Claim 9
Dependent Claim
36 words
A tray as set forth in claim 7 wherein said latch member has a second notch therein for receiving a respective side portion of a respective leg releasably to latch the leg in its folded position.
Claim 10
Dependent Claim
35 words
A tray as set forth in claim 8 wherein said latch member has stop means thereon engageable by one side portion of a respective leg for preventing the leg from swinging past its tray-supporting position.
Claim 11
Dependent Claim
40 words
A tray as set forth in claim 9 wherein the other pivot member of each pair has stop means thereon engageable by the other side portion of a respective leg for preventing the leg from swinging past its tray-supporting position.
Claim 12
Dependent Claim
55 words
A tray as set forth in claim 7 wherein each actuator is movable by hand for springing the side portions of that leg with respect to one another to move said side portions out of said first notch of a respective latch member for enabling the leg to swing between its folded and unfolded positions.
Claim 13
Dependent Claim
26 words
A tray as set forth in claim 11 wherein each actuator is adapted for springing the side portions of a respective leg away from one another.
Claim 14
Dependent Claim
56 words
A tray as set forth in claim 11 wherein said one pivot member of each pair of pivot members comprises a first flange extending down from the tray in a plane generally perpendicular to the pivot axis of a respective leg, said latch member comprising an integral extension of said flange at the lower end thereof.
Claim 15
Dependent Claim
81 words
A tray as set forth in claim 13 wherein said latch member comprises a first generally horizontal flange portion bent from the lower end of said flange, and a second flange portion inclined upwardly from the horizontal portion away from said flange, said horizontal flange portion having said first notch therein and said inclined flange portion having a second notch therein for receiving a respective side portion of a respective leg thereby releasably to latch the leg in its folded position.
Claim 16
Dependent Claim
59 words
A tray as set forth in claim 14 wherein said one pivot member of each pair of pivot members has a second flange extending down from the underside of the tray generally parallel to said first flange, said end portion of a respective leg side portion extending through said first and second flanges for connection to a respective actuator.
Claim 17
Dependent Claim
42 words
A tray as set forth in claim 15 wherein said actuators are in the form of buttons operatively connected to said legs and slidable in slots in the tray for springing the side portions of each leg with respect to one another.
Claim 18
Dependent Claim
32 words
A tray as set forth in claim 16 wherein said actuator buttons are disposed within recesses in the tray so that the buttons do not project above the top of the tray.
Claim 19
Dependent Claim
29 words
A tray as set forth in claim 17 wherein said tray is of one piece molded construction, and said legs are in the form of generally U-shaped metal rods.
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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) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |