Patent US3980265A successfully refreshed from Google Patents.
US3980265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing machine table accessory shelf
Assignee: Lawrence Peska Associates Inc
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Filing: 1975-08-21
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Granted: 1976-09-14
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Expires: 1995-08-21
Abstract
Abstract This disclosure pertains to a retractable shelf attachment fastened to a sewing machine table to be used to support quantities of precut fabric parts in a convenient location to the operator. The shelf has a vertical storage position along one short side of the sewing machine table. The track, fastened to the short end of the sewing machine table, supports an internal slide, which in turn, supports a vertical bar depending downward therefrom. The lowermost free end of the vertical bar is adapted with a component of a detent mechanism. In use, the operator pulls the slide to its frontmost position, which is located near the foremost longitudinal edge of the sewing machine table, transporting the vertically positioned underslung shelf. Ninety degree rotation of the shelf about a horizontal axis permits the detenting mechanism to lock the shelf's surface in a plane parallel to the floor.
Inventors
- 👤 Dominick Pizzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:17
CPC Classifications
A; A47; A47B; A47B17/00; A47B17/03; D; D05; D05B; D05B75/00; D05B75/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
295 words
A sewing machine table accessory shelf comprising a longitudinal track fastened horizontally at a side end of a sewing machine table, a longitudinal slot extending the entire length of the lowermost surface of a cavity in said track, said cavity extending the length of said track, a slidable support member within said cavity substantially shorter than the entire length of said track, an L-shaped bracket having a leg depending vertically downwards from the lowermost surface of said slidable support member, a right angle detenting bracket fastened at one edge on the surface of a shelf, a square pin transverse to said vertical leg of said L-shaped bracket located near the free end thereof, said square pin non-rotatably fastened to said vertical leg, passing through a generally W-shaped slot cut through the surface of said right angle detenting bracket which is perpendicular to said shelf, said W-shaped slot terminated at each extreme in rectangular cutouts at right angles to each other, whose width is slightly greater than the width of said square pin, the central portion of said W-shaped slot having an opening of sufficient size to permit free rotation of said right angle detenting bracket and shelf about said square pin, said vertical leg maintained near parallel engagement with that face of said right angle detenting bracket which is transverse to said shelf by a washer securely fastened to said square pin ner the free end thereof, said shelf maintained in a vertical plane by that portion at one end of said W-shaped slot rectangular in shape, said shelf maintained in a horizontal plane by the other rectangular portion at the other end of said W-shaped slot, a pin transverse to said cavity traversing said cavity, said pin fastened near the ends of said track.
Claim 2
Dependent Claim
295 words
A sewing machine table accessory shelf comprising a longitudinal track fastened horizontally at a side end of a sewing machine table, a longitudinal slot extending the entire length of the lowermost surface of a cavity in said track, said cavity extending the length of said track, a slidable support member within said cavity substantially shorter than the entire length of said track, an L-shaped bracket having a leg depending vertically downwards from the lowermost surface of said slidable support member, a right angle detenting bracket fastened at one edge on the surface of a shelf, a square pin transverse to said vertical leg of said L-shaped bracket located near the free end thereof, said square pin non-rotatably fastened to said vertical leg, passing through a generally W-shaped slot cut through the surface of said right angle detenting bracket which is perpendicular to said shelf, said W-shaped slot terminated at each extreme in rectangular cutouts at right angles to each other, whose width is slightly greater than the width of said square pin, the central portion of said W-shaped slot having an opening of sufficient size to permit free rotation of said right angle detenting bracket and shelf about said square pin, said vertical leg maintained near parallel engagement with that face of said right angle detenting bracket which is transverse to said shelf by a washer securely fastened to said square pin ner the free end thereof, said shelf maintained in a vertical plane by that portion at one end of said W-shaped slot rectangular in shape, said shelf maintained in a horizontal plane by the other rectangular portion at the other end of said W-shaped slot, a pin transverse to said cavity traversing said cavity, said pin fastened near the ends of said track.
Claim 3
Dependent Claim
16 words
The sewing machine table accessory shelf of claim 1 wherein said shelf has a mar-proof surface.
Claim 4
Dependent Claim
24 words
The sewing machine table accessory shelf of claim 1 wherein said slide is fabricated form a plastic material having a low coefficient of friction.
Claim 5
Dependent Claim
20 words
The sewing machine table accessory shelf of claim 1 wherein said square pin is removably fastened to said vertical leg.
Claim 6
Dependent Claim
17 words
The sewing machine table accessory shelf of claim 1 wherein said track is fabricated from extruded aluminum.
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) | 1979-09-14 | 1980-03-15 | 1980-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-14 | 1984-03-15 | 1984-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-14 | 1988-03-15 | 1988-09-14 | $7700.00 | Window Closed / Lapsed |