Patent US3570579A successfully refreshed from Google Patents.
US3570579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding cover and housing device thereof
Assignee: Nippon Gakki Co Ltd
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Filing: 1969-03-12
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Granted: 1971-03-16
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Expires: 1989-03-12
Abstract
Abstract A sliding cover and housing device thereof which comprises a sliding cover consisting of a plurality of cover pieces being linked with hinges and a pair of guides being provided along the upper inside walls of a cabinet, whereby the cover assembly can be housed in the rear and upper space of the cabinet in folded state.
Inventors
- 👤 Shunichi Matsushima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:07
CPC Classifications
A; A47; A47B; A47B17/00; A47B17/04; E; E05; E05D; E05D1/00; E05D1/04; E06; E06B; E06B3/00; E06B3/32; E06B3/48; E06B3/481; E06B3/482; E05Y; E05Y2900/00; E05Y2900/20
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
152 words
A sliding cover comprising cover pieces having at the opposite ends thereof curved projections the cross section of which are formed by the arcs of circles and edge projections, said curved and edge projections forming therebetween slots, said cover pieces having at the opposite ends thereof slots opening in the opposite direction to each other, the inner walls of said edge projections defining said slots being arched concentrically with the opposite surfaces of said curved projections; and a hinge connecting said cover pieces having two fitting edges extending towards each other, two guiding edges each connected to the corresponding fitting edge and formed into an arcuate portion to be received in said corresponding slot, and a central portion connecting said two guiding edges, said fitting and guiding edges forming fitting slots therebetween receiving said curved projections, and said fitting slots having parallel walls concentric with the opposite surfaces of said curved projections.
Claim 2
Dependent Claim
152 words
A sliding cover comprising cover pieces having at the opposite ends thereof curved projections the cross section of which are formed by the arcs of circles and edge projections, said curved and edge projections forming therebetween slots, said cover pieces having at the opposite ends thereof slots opening in the opposite direction to each other, the inner walls of said edge projections defining said slots being arched concentrically with the opposite surfaces of said curved projections; and a hinge connecting said cover pieces having two fitting edges extending towards each other, two guiding edges each connected to the corresponding fitting edge and formed into an arcuate portion to be received in said corresponding slot, and a central portion connecting said two guiding edges, said fitting and guiding edges forming fitting slots therebetween receiving said curved projections, and said fitting slots having parallel walls concentric with the opposite surfaces of said curved projections.
Claim 3
Dependent Claim
72 words
A sliding cover as claimed in claim 1, wherein said cover pieces are provided at their opposite ends with stepped portions located at the sides of said curved projections opposite to the sides defining said slots, and said central portion is formed into a plate having opposite flat surfaces allowing said stepped portions or said edge projections to be seated thereon when said cover pieces are turned with respect to said hinge.
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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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |