US4510641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scrubbing pad
Assignee: Pactiv LLC
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Filing: 1983-11-09
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Granted: 1985-04-16
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Expires: 2003-11-09
Abstract
Abstract A scrubbing pad having an elongated flattened body with opposed major surfaces of different textures such as steel wool and reticulated foam. The pad has an interior pocket, accessible through a peripheral opening, which is lined with a netting of plastics material to hold a replaceable cleaning material.
Inventors
- 👤 Kenneth L. Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:05
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/16; A47L13/17
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
134 words
A scouring pad comprising: an elongated flattened body having two major surfaces of appropriately the same size, the first of said surfaces being composed of randomly oriented metallic fibers forming a non-woven cloth layer and the second major surface being composed of a reticulated plastics foam material; means adhesively securing the edges of said first and second major surfaces together only around a major portion of their mating peripheries so as to form a pocket therebetween, said pocket being accessible through a portion of said periphery which is not adhesively secured; two layers of netting of plastics material sandwiched between said major surfaces and lining said pocket to form a permeable holder for a cleaning substance therebetween, the edges of the netting being also adhesively secured together around a major portion of their peripheries.
Claim 2
Dependent Claim
134 words
A scouring pad comprising: an elongated flattened body having two major surfaces of appropriately the same size, the first of said surfaces being composed of randomly oriented metallic fibers forming a non-woven cloth layer and the second major surface being composed of a reticulated plastics foam material; means adhesively securing the edges of said first and second major surfaces together only around a major portion of their mating peripheries so as to form a pocket therebetween, said pocket being accessible through a portion of said periphery which is not adhesively secured; two layers of netting of plastics material sandwiched between said major surfaces and lining said pocket to form a permeable holder for a cleaning substance therebetween, the edges of the netting being also adhesively secured together around a major portion of their peripheries.
Claim 3
Dependent Claim
17 words
The pad of claim 1 in which the means securing the periphery is a heat cureable adhesive.
Claim 4
Dependent Claim
16 words
The pad of claim 2 in which the heat cureable adhesive is a hot melt adhesive.
Claim 5
Dependent Claim
25 words
The pad of claim 2 in which the heat cureable adhesive has an activating temperature below the temperature which would damage the plastics foam material.
Claim 6
Dependent Claim
19 words
The pad of claim 2 in which the activating temperature of the heat curable adhesive is below 500° F.
Claim 7
Dependent Claim
14 words
The pad of claim 1 in which the metallic fibers are of stainless steel.
Claim 8
Dependent Claim
38 words
The pad of claim 1 in which the pocket is accessible through an opening where the periphery of the pad is not adhesively secured, the plastics netting at said opening being secured to its respective adjacent major surface.
Claim 9
Independent Claim
144 words
A method of manufacturing a scouring pad having two major surfaces of different materials and a pocket therebetween comprising: forming a first major surface from a non-woven material of randomly oriented metallic fibers; forming a second major surface of a reticulated plastics foam material; coating the major portion of the periphery of at least one of said major surfaces with an adhesive; assembling said two major surfaces together with two layers of netting of plastics material sandwiched therebetween so that the peripheries of said two major surfaces are in alignment; pressing said peripheries together so as to cure said adhesive and secure said major surfaces together only over a major part of their common periphery so as to form a pocket between said major surfaces while leaving an opening to said pocket through said periphery at the peripheral portion when there is no adhesive.
Claim 10
Independent Claim
144 words
A method of manufacturing a scouring pad having two major surfaces of different materials and a pocket therebetween comprising: forming a first major surface from a non-woven material of randomly oriented metallic fibers; forming a second major surface of a reticulated plastics foam material; coating the major portion of the periphery of at least one of said major surfaces with an adhesive; assembling said two major surfaces together with two layers of netting of plastics material sandwiched therebetween so that the peripheries of said two major surfaces are in alignment; pressing said peripheries together so as to cure said adhesive and secure said major surfaces together only over a major part of their common periphery so as to form a pocket between said major surfaces while leaving an opening to said pocket through said periphery at the peripheral portion when there is no adhesive.
Claim 11
Dependent Claim
24 words
The method of claim 8 in which the adhesive is a heat cureable adhesive and including the step of heating said periphery while pressing.
Claim 12
Dependent Claim
16 words
The method of claim 8 in which the heat cureable adhesive is a hot melt adhesive.
Claim 13
Dependent Claim
45 words
The method of claim 8 including placing the assembly of major surfaces and plastics netting between the plates of a press, each plate having an upstanding edge to contact said common periphery and heating at least one of said upstanding edges to cure said adhesive.
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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) | 1988-04-15 | 1988-10-15 | 1989-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-15 | 1992-10-15 | 1993-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-15 | 1996-10-15 | 1997-04-16 | $7700.00 | Window Closed / Lapsed |