US3798984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary clothes hoists
Assignee: Joyce Bros WA Pty Ltd
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Filing: 1972-08-22
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Granted: 1974-03-26
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Expires: 1992-08-22
Abstract
Abstract The invention relates to a rotary clothes hoist wherein a clothes receiving head comprising a series of radial arms is carried on the upper end of an inner standard rotatably and slidably mounted in the upper end of a main vertical standard and coupled to elevating means, said elevating means being substantially housed within the main standard.
Inventors
- 👤 Minn J Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:18
CPC Classifications
D; D06; D06F; D06F57/00; D06F57/02; D06F57/04; A; A47; A47G; A47G25/00; A47G25/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18008; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19744; Y10T74/19781; Y10T74/19791; Y10T74/198
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
164 words
A clothes hoist comprising a main tubular standard, an elevating element located within said standard, an operating handle journalled in a bearing fixed to the main standard and drive means coupling the handle to the elevating element, said drive means including a gear meshing with a complementary toothed member and an inner spindle mounted for rotation with said complementary toothed member said elevating element being mounted on said inner spindle for sliding movement relative to the spindle simultaneously to its rotation with the spindle and said elevating element having a helical groove or thread formed on its surface, the main standard being provided with inwardly projecting guide means engaging the helical groove or thread to allow the elevating element to move upwardly or downwardly within the main standard upon rotation of the spindle and a inner standard carrying a clothes mounting head at its upper end slidably and rotatably mounted within said main standard and having its lower end coupled to said elevating element.
Claim 2
Dependent Claim
164 words
A clothes hoist comprising a main tubular standard, an elevating element located within said standard, an operating handle journalled in a bearing fixed to the main standard and drive means coupling the handle to the elevating element, said drive means including a gear meshing with a complementary toothed member and an inner spindle mounted for rotation with said complementary toothed member said elevating element being mounted on said inner spindle for sliding movement relative to the spindle simultaneously to its rotation with the spindle and said elevating element having a helical groove or thread formed on its surface, the main standard being provided with inwardly projecting guide means engaging the helical groove or thread to allow the elevating element to move upwardly or downwardly within the main standard upon rotation of the spindle and a inner standard carrying a clothes mounting head at its upper end slidably and rotatably mounted within said main standard and having its lower end coupled to said elevating element.
Claim 3
Dependent Claim
27 words
A clothes hoist as claimed in claim 1 wherein the guide means comprises a plurality of spaced studs extending inwardly of the interior of the main standard.
Claim 4
Dependent Claim
26 words
A clothes hoist as claimed in claim 1 wherein the guide means comprises a helically wound spring located in a fixed position within the main standard.
Claim 5
Dependent Claim
72 words
A clothes hoist as claimed in claim 1 wherein the guide means comprises a helically wound spring located in a fixed position within the main standard below the complementary toothed member, the inner spindle passing through the complementary toothed member and having its lower end fixed to the elevating element so as to allow the helical groove or thread of the elevating element to mesh with the coils of the helical spring.
References Cited (Backward Citations)
US2369910A
Cited
US2368345A
Cited
US2631826A
Cited
US2873612A
Cited
US3475705A
Cited
US3599499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |