Patent US4040139A successfully refreshed from Google Patents.
US4040139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scouring pad or the like
Assignee: ACS Industries Inc
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Filing: 1975-06-25
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Granted: 1977-08-09
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Expires: 1995-06-25
Abstract
Abstract A scouring-pad construction wherein an outer tubular envelope is inside-out loosely knitted around a loosely fabricated pliant stuffer material, given lengths of such materials being secured to establish end closure along generally transverse alignments. In a preferred form, the inner and outer materials are both knitted, and thermoplastic filament is an important component of both knits, the ends being heat-sealed for permanent closure by local fusion of such filaments.
Inventors
- 👤 George B. Botvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:00
CPC Classifications
A; A47; A47L; A47L17/00; A47L17/04; A47L17/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/24793
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
114 words
A scouring pad comprising an axially extending length of loosely knitted pliant outer tubing, an axially extending loosely fabricated inner stuffing material within said outer tubing and extending to substantially the axial ends of said outer tubing, the said outer tubing being a single continuously knit length comprising a relatively long central region of knitted metal filament and contiguous relatively short non-metallic end regions of knitted thermoplastic filament, said outer tubing being secured at its end regions on compressed generally transverse alignments through the knitted thermoplastic regions of said tubing, and through the stuffing material thereby retaining closure of both ends of the outer tubing, without exposure of outer-tubing metal at the secured ends.
Claim 2
Dependent Claim
114 words
A scouring pad comprising an axially extending length of loosely knitted pliant outer tubing, an axially extending loosely fabricated inner stuffing material within said outer tubing and extending to substantially the axial ends of said outer tubing, the said outer tubing being a single continuously knit length comprising a relatively long central region of knitted metal filament and contiguous relatively short non-metallic end regions of knitted thermoplastic filament, said outer tubing being secured at its end regions on compressed generally transverse alignments through the knitted thermoplastic regions of said tubing, and through the stuffing material thereby retaining closure of both ends of the outer tubing, without exposure of outer-tubing metal at the secured ends.
Claim 3
Dependent Claim
91 words
A scouring pad comprising an axially extending length of loosely knitted pliant outer tubular scouring material, said length being in inside-out orientation, an axially extending length of loosely knitted pliant inner tubular stuffing material within said outer tubular material in face-out orientation and extending to substantially the axial ends of said outer tubular material, said outer material being secured at its ends on compressed generally transverse alignments, thereby retaining closure of both ends of the outer tubular length, in substantial grain-matching relation with the adjacent surface of said inner tubular material.
Claim 4
Dependent Claim
91 words
A scouring pad comprising an axially extending length of loosely knitted pliant outer tubular scouring material, said length being in inside-out orientation, an axially extending length of loosely knitted pliant inner tubular stuffing material within said outer tubular material in face-out orientation and extending to substantially the axial ends of said outer tubular material, said outer material being secured at its ends on compressed generally transverse alignments, thereby retaining closure of both ends of the outer tubular length, in substantial grain-matching relation with the adjacent surface of said inner tubular material.
Claim 5
Dependent Claim
55 words
A scouring pad according to claim 2, in which the length of outer tubular material comprises a relatively long central region of knitted metal in continuously knitted contiguous relation to and between the secured end regions, and in which said length further comprises relatively short end regions of knitted thermoplastic filament at the secured alignments.
Claim 6
Dependent Claim
27 words
A scouring pad according to claim 3, in which the thermoplastic end regions are locally fused at the secured alignments for bonded retention of the closed ends.
Claim 7
Dependent Claim
37 words
A scouring pad according to claim 4, in which the stuffer material is of thermoplastic filament, the fusing at the secured ends being as between thermoplastic filaments of both the outer tubular length and the stuffer material.
Claim 8
Dependent Claim
22 words
A scouring pad according to claim 2, in which each secured end is secured by a stitched transverse seam of filamentary material.
Claim 9
Dependent Claim
29 words
A scouring pad according to claim 6, in which a peripheral ribbon around each longitudinal end of the pad is stitched to the knitted tubular material by said seams.
Claim 10
Dependent Claim
45 words
A scouring pad according to claim 2, in which a peripheral ribbon of thermoplastic material is adjacent the outer face of the outer tube and local to each longitudinal end of the pad, said thermoplastic material being fused to adjacent knitted material on said alignments.
Claim 11
Dependent Claim
47 words
A scouring pad according to claim 8, in which each of the fused end regions is further secured by at least one stitched seam of filamentary material, the filamentary material of the seams extending entirely through and retaining squeezed compression of opposed tape regions upon knitted material.
Claim 12
Dependent Claim
22 words
A scouring pad according to claim 1, in which the inner stuffing material is a length of tubular knitted filamentary thermoplastic material.
Claim 13
Dependent Claim
29 words
A scouring pad according to claim 10, in which the knit orientation of the outer tubular length is inside-out and that of the inner tubular length is right-side out.
Claim 14
Dependent Claim
32 words
A scouring pad according to claim 10, in which the inner tubular length is one of a plurality of such inner tubular lengths all of which are within said outer tubular length.
Claim 15
Dependent Claim
24 words
A scouring pad according to claim 10, in which thermoplastic components of both lengths are locally fused to each other at the secured alignments.
Claim 16
Dependent Claim
34 words
A scouring pad according to claim 2, in which the material of the outer tubular length includes a thermoplastic filamentary component, locally fused at the secured alignments for bonded retention of the closed ends.
Claim 17
Dependent Claim
21 words
A scouring pad according to claim 2, in which the material of the outer tubular length includes a filamentary metal element.
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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) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |