US3568901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide fastener operating mechanism
Assignee: Individual
•
Filing: 1968-11-22
•
Granted: 1971-03-09
•
Expires: 1988-11-22
Abstract
Abstract A slide fastener operating mechanism adapted for door or wall mounting is secured to an endless cord that is suspended and running between spaced, resiliently supported end pulleys, themselves positioned in easily removable over-the-door or wall securable brackets.
Inventors
- 👤 Lewis F Mcnitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:12
CPC Classifications
A; A47; A47G; A47G25/00; A47G25/90; A47G25/902
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
196 words
A slide fastener operating mechanism comprising: a pair of opposing supporting brackets adapted for being mounted on a base object in a vertical spacing sufficient to affect a desired range of slide fastener movement; a pair of U-shaped pulley-mounted elements, each mounted on a bracket and having spaced side webs, the webs of each element having one pair of opposite parallel slots extending in a horizontal direction; adjustable means extending through each bracket and the horizontal slots of the element supported thereon for securing said element at various horizontal positions relative to the bracket; a pair of pulleys of which one is disposed between the webs of each element; shaft means extending through each element and the pulley received therein, one of the shaft means and the pulley carried thereon being movable in a vertical direction; spring means carried by said element the movable shaft means acting on, and urging, the shaft means in a direction away from the other element; and endless cord means extending in a circuit around both pulleys and having a pull element secured by one end to the cord means, said pull element terminating in a hook at its loose end.
Claim 2
Dependent Claim
196 words
A slide fastener operating mechanism comprising: a pair of opposing supporting brackets adapted for being mounted on a base object in a vertical spacing sufficient to affect a desired range of slide fastener movement; a pair of U-shaped pulley-mounted elements, each mounted on a bracket and having spaced side webs, the webs of each element having one pair of opposite parallel slots extending in a horizontal direction; adjustable means extending through each bracket and the horizontal slots of the element supported thereon for securing said element at various horizontal positions relative to the bracket; a pair of pulleys of which one is disposed between the webs of each element; shaft means extending through each element and the pulley received therein, one of the shaft means and the pulley carried thereon being movable in a vertical direction; spring means carried by said element the movable shaft means acting on, and urging, the shaft means in a direction away from the other element; and endless cord means extending in a circuit around both pulleys and having a pull element secured by one end to the cord means, said pull element terminating in a hook at its loose end.
Claim 3
Dependent Claim
82 words
The mechanism of claim 2 wherEin: said webs of at least one of said elements having a pair of opposite parallel slots extending in the vertical direction; said element having vertical slots receiving said shaft means associated therewith extending through said vertical slots; and each bracket is U-shaped and has two legs of which one leg is opposed to the element and the element adjustably attached to its other leg to receive a supporting object between said one leg and the element.
Claim 4
Dependent Claim
30 words
The mechanism of claim 1 wherein: spring means in cantilever attached relation with one of said elements has coiled ends for receiving said shaft means of one of said pulleys.
References Cited (Backward Citations)
US2604242A
Cited
US3199753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |