US3834725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trolley adapted to hold or to exhibit things or articles of different kinds
Assignee: USAG SpA
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Filing: 1972-10-27
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Granted: 1974-09-10
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Expires: 1992-10-27
Abstract
Abstract A tool-holder trolley including several vertically stacked traylike horizontal containers held by three uprights, the upper and lower containers being fixed to the uprights and the intermediate containers being revolvable on bearings carried by the uprights. The uprights have roller wheels at their lower extremities.
Inventors
- 👤 B Luoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:10
CPC Classifications
B; B25; B25H; B25H5/00; A; A47; A47B; A47B31/00; B25H1/00; B25H1/12; B25H3/00; B25H3/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
254 words
A tool-holder trolley comprising: A a tray-like circular top stationary container having a squat upstanding circular side wall, B a tray-like circular base stationary container having a squat upstanding circular side wall, C said top and base containers being of the same diameters, D plural tray-like circular intermediate revolvable containers each having a squat upstanding side wall, E each intermediate container having an annular horizontal rim extending radially outwardly from the top edge of its side wall, F said containers being arranged in parallelism and in spaced vertically stacked relationship about a common vertical axis, G at least three vertical uprights, said uprights being equiangularly circumferentially spaced from one another, H means securing said uprights to the side walls of said base and top containers to maintain the same in said stacked relationship, I different sets of rolling supports, one for each of said intermediate containers, each set including a different rolling support for each upright, and means securing said rolling supports to said uprights for rotation about horizontal axes extending radially from said vertical axis, all of the horizontal axes for each set of rolling supports being in a common horizontal plane for that set, J the rims of each intermediate revolvable container resting on a different set of rolling supports whereby the intermediate containers can revolve about said vertical axis independently of each other and in the absence of a central shaft, and K roller wheels beneath said base container to permit the toolholder to be rolled about on a horizontal surface.
Claim 2
Dependent Claim
254 words
A tool-holder trolley comprising: A a tray-like circular top stationary container having a squat upstanding circular side wall, B a tray-like circular base stationary container having a squat upstanding circular side wall, C said top and base containers being of the same diameters, D plural tray-like circular intermediate revolvable containers each having a squat upstanding side wall, E each intermediate container having an annular horizontal rim extending radially outwardly from the top edge of its side wall, F said containers being arranged in parallelism and in spaced vertically stacked relationship about a common vertical axis, G at least three vertical uprights, said uprights being equiangularly circumferentially spaced from one another, H means securing said uprights to the side walls of said base and top containers to maintain the same in said stacked relationship, I different sets of rolling supports, one for each of said intermediate containers, each set including a different rolling support for each upright, and means securing said rolling supports to said uprights for rotation about horizontal axes extending radially from said vertical axis, all of the horizontal axes for each set of rolling supports being in a common horizontal plane for that set, J the rims of each intermediate revolvable container resting on a different set of rolling supports whereby the intermediate containers can revolve about said vertical axis independently of each other and in the absence of a central shaft, and K roller wheels beneath said base container to permit the toolholder to be rolled about on a horizontal surface.
Claim 3
Dependent Claim
22 words
A trolley according to claim 1, wherein the uprights are kept mutually positioned and spaced by the stationary tray-like container, fastened thereto.
Claim 4
Dependent Claim
23 words
A trolley according to claim 2, wherein said stationary containers are fastened to top ends and to bottom ends, respectively, of said uprights.
Claim 5
Dependent Claim
29 words
A trolley according to claim 1, wherein a plurality of means is provided on said uprights to allow for the removable securing of revolving container supporting rolling supports thereto.
Claim 6
Dependent Claim
37 words
A trolley according to claim 1, wherein the rim of each revolving container has a downwardly depending circular skirt to form with the rim an annular track which can ride about the associated set of rolling supports.
Claim 7
Dependent Claim
11 words
A trolley according to claim 1, wherein three uprights are utilized.
Claim 8
Dependent Claim
47 words
A trolley according to claim 1, wherein the roller wheels are casters and wherein means is provided to lock the swivelling motion of at least one of said casters, and to simultaneously lock both the swivelling motion and rotary motion of at least another of said casters.
Claim 9
Dependent Claim
60 words
A trolley according to claim 1, wherein walls are fitted to close the spaces between said uprights, at least one of said walls acting as a lockable door that can be removed and inserted into the space already taken by anyother of closing walls, whereby the overall sizes of open trolley are not materially increased over those of closed trolley.
Claim 10
Dependent Claim
27 words
A trolley according to claim 1, wherein at least one accessory is provided, in particular for the utilization of the stationary top container as a work bench.
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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |