US4953231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shade attachment for eyeglasses
Assignee: Individual
•
Filing: 1989-07-19
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Granted: 1990-09-04
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Expires: 2009-07-19
Abstract
Abstract A shade attachment for eyeglasses includes a frame defining a pair of openings dimensioned for registry with lenses of a pair of conventional eyeglasses. Top and bottom resilient clips are provided on the frame and are configured for frictional engagement with top and bottom edges of eyeglass lenses. A set of transverse slats are mounted on the frame and extend across the lens openings. The salts are mounted for movement between open and closed positions by a linear drive train including a plurality of driven gears secured to axle shafts of each of the slats. A plurality of idler gears are mounted for rotation on the frame between and in mesh with each adjacent pair of driven gears. A drive gear is mounted for rotation on the frame and in mesh with one of the driven gears. A control knob is provided for manually rotating the drive gear to simultaneously open or close all of the slats extending across one of the frame openings. In a second embodiment of the present invention, the shade mechanism is provided as an integral part of a pair of eyeglasses.
Inventors
- 👤 David W. Burnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:58
CPC Classifications
G; G02; G02C; G02C9/00; G02C9/04; G02C7/00; G02C7/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
181 words
A shade attachment for eyeglasses, comprising: a frame; a pair of openings defined by said frame, said openings dimensioned for registry with lenses of a pair of eyeglasses; a plurality of resilient clips on top and bottom portions of said frame, said clips configured for frictional engagement with top and bottom edges of eyeglass lenses; two sets of slats, each set of slats including a plurality of slats extending across one of said openings; an axle shaft extending from opposite ends of each of said slats and journalled for rotation in said frame; a driven gear secured at one end of each of said slats on said axle shafts, for rotation therewith; said driven gears extending in a collinear drive train; an idler gear mounted for rotation on said frame between and in direct meshing engagement with each adjacent pair of said driven gears; a drive gear mounted for rotation on said frame and in mesh with one of said driven gears; all of said gears disposed in a collinear drive train; and control means for manually rotating said drive gear.
Claim 2
Dependent Claim
181 words
A shade attachment for eyeglasses, comprising: a frame; a pair of openings defined by said frame, said openings dimensioned for registry with lenses of a pair of eyeglasses; a plurality of resilient clips on top and bottom portions of said frame, said clips configured for frictional engagement with top and bottom edges of eyeglass lenses; two sets of slats, each set of slats including a plurality of slats extending across one of said openings; an axle shaft extending from opposite ends of each of said slats and journalled for rotation in said frame; a driven gear secured at one end of each of said slats on said axle shafts, for rotation therewith; said driven gears extending in a collinear drive train; an idler gear mounted for rotation on said frame between and in direct meshing engagement with each adjacent pair of said driven gears; a drive gear mounted for rotation on said frame and in mesh with one of said driven gears; all of said gears disposed in a collinear drive train; and control means for manually rotating said drive gear.
Claim 3
Dependent Claim
141 words
A pair of eyeglasses, comprising: a frame; a pair of lenses mounted in said frame; two sets of slats, each set of slats including a plurality of slats extending across one of said lenses; an axle shaft extending from opposite ends of each of said slats and journalled for rotation in said frame; a driven gear secured at one end of each of said slats on said axle shafts, for rotation therewith; said driven gears extending in a collinear drive train; an idler gear mounted for rotation on said frame between and in direct meshing engagement with each adjacent pair of said driven gears; a drive gear mounted for rotation on said frame and in mesh with one of said driven gears; all of said gears disposed in a collinear drive train; and control means for manually rotating said drive gear.
Claim 4
Dependent Claim
141 words
A pair of eyeglasses, comprising: a frame; a pair of lenses mounted in said frame; two sets of slats, each set of slats including a plurality of slats extending across one of said lenses; an axle shaft extending from opposite ends of each of said slats and journalled for rotation in said frame; a driven gear secured at one end of each of said slats on said axle shafts, for rotation therewith; said driven gears extending in a collinear drive train; an idler gear mounted for rotation on said frame between and in direct meshing engagement with each adjacent pair of said driven gears; a drive gear mounted for rotation on said frame and in mesh with one of said driven gears; all of said gears disposed in a collinear drive train; and control means for manually rotating said drive gear.
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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) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |