Patent US4814835A successfully refreshed from Google Patents.
Patent US3853170A successfully refreshed from Google Patents.
US3853170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shade roller apparatus
Assignee: Individual
•
Filing: 1971-10-13
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Granted: 1974-12-10
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Expires: 1991-10-13
Abstract
Abstract This apparatus is for a shade roller which needs no brackets inside the window frame. It is composed of an axle 4 two bearing 7,7a pivot disc 8 four snap rings 2,2a,5,5a spring 9 twist lock 11 housing 1 and a flange 13. The operation is as follows. The axle 4 is positioned against the inside of the window frame at one side. Then the shade roller is pushed in to compress the spring 9 where then the other end of the shade roller is positioned horizontal inside the window frame at the other side of the window frame. Then the shade roller is released and the spring 9 will project the axle 4 against the inside of the window frame and this will allow the shade roller to stay in a fixed position without brackets. When the shade roller is to be used with brackets on the outside of the window frame on the casing the spring 9 is taken out by the use of the twist lock 11 in order to retract the axle 4 to a stationary position, and to take the extension pressure off the brackets.
Inventors
- 👤 B Barettella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:26
CPC Classifications
A; A47; A47H; A47H1/00; A47H1/10; A47H1/12; A47H1/122; E; E06; E06B; E06B9/00; E06B9/24; E06B9/40; E06B9/42; E06B9/50; A47H1/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
305 words
In combination with a shade roller having a hollowed recess at one end: a shade roller apparatus having a hollowed cylindrical elongated-tube type bearing housing fitted firmly within said recess of said shade roller, said bearing housing having at its inner tube end L-shape locking means preforated from said bearing tube wall, the outer end of said housing having an integral circular holding cover extending laterally of said bearing housing, said cover having a circular recessed inner wall mounted against the face end of said shade roller and said cover inner wall having a central opening for access to the hollow of said bearing housing, said holding cover having an outer circular wall having extending flexible grip press ears being pre cut sections of said outer walL, said press ears being provided with pre punched V-type injecting holding points whereby said grip press ears are pressed inward into said shade roller end, a circular extractable twist lock having an outer flat side and of the same circumference of said housing tube hollow, and having on the circumference edge thereof protruding square peg keys, and on the inner face side of said twist lock an outstanding box shaped griping twist handle for interlocking said square peg extending keys into said L-shaped locking channels within the wall of said housing tube, an extension spring expanding within said tube hollow between the outer flat side of said twist lock and the inner face side of a circular pivot disc, said pivot disc being of sufficient solid thickness and of the same circumference size of said housing tube hollow and being the inner surface of a retractable axle, said axle being retractably mounted within said hollow tube, and retained therein by snap rings and bearing means, whereby the axle may be retracted and extended to mount the shade roller.
Claim 2
Dependent Claim
305 words
In combination with a shade roller having a hollowed recess at one end: a shade roller apparatus having a hollowed cylindrical elongated-tube type bearing housing fitted firmly within said recess of said shade roller, said bearing housing having at its inner tube end L-shape locking means preforated from said bearing tube wall, the outer end of said housing having an integral circular holding cover extending laterally of said bearing housing, said cover having a circular recessed inner wall mounted against the face end of said shade roller and said cover inner wall having a central opening for access to the hollow of said bearing housing, said holding cover having an outer circular wall having extending flexible grip press ears being pre cut sections of said outer walL, said press ears being provided with pre punched V-type injecting holding points whereby said grip press ears are pressed inward into said shade roller end, a circular extractable twist lock having an outer flat side and of the same circumference of said housing tube hollow, and having on the circumference edge thereof protruding square peg keys, and on the inner face side of said twist lock an outstanding box shaped griping twist handle for interlocking said square peg extending keys into said L-shaped locking channels within the wall of said housing tube, an extension spring expanding within said tube hollow between the outer flat side of said twist lock and the inner face side of a circular pivot disc, said pivot disc being of sufficient solid thickness and of the same circumference size of said housing tube hollow and being the inner surface of a retractable axle, said axle being retractably mounted within said hollow tube, and retained therein by snap rings and bearing means, whereby the axle may be retracted and extended to mount the shade roller.
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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |