US4216562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sponge mop refill
Assignee: Quickie Manufacturing Corp
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Filing: 1978-10-31
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Granted: 1980-08-12
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Expires: 1998-10-31
Abstract
Abstract A sponge mop refill comprises a cellular foam body to which is affixed a thin, stiff, hard, planar backing strip. The backing strip is centrally cut out to provide needed flexibility as the refill is medially bent during the water extracting procedure. A pair of spaced, plastic, accordion rivets have their heads interposed between a surface of the foam body and a surface of the backing strip and are installed with the rivet shank extending outwardly through the backing member to facilitate easy application to and removal from a sponge mop.
Inventors
- 👤 Martin P. Strahs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:36
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/24; A47L13/254; A47L13/257
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
234 words
In a sponge refill assembly suitable for use with a sponge mop, the combination of a body of cellulosic sponge material suitable to retain a quantity of water therewithin, said body comprising an exterior surface; a unitary backing strip applied to the body at the said exterior surface, said backing strip being fabricated of relatively thin, stiff, hard material, said backing strip being securely affixed to the body surface, the backing strip comprising a pair of spaced press feet, the press feet being separated by a weakened, medial cut out area whereby the refill assembly can be medially folded by bending the backing strip at the weakened area, the medial cut out area comprising an integral, thin web interconnecting the press feet, the said web being adapted to be bent when the refill assembly is folded, and a cut out open area intermediate the press feet and adjacent to the web, the open area being greater in area than the area of the thin web, and fastening means retained by the backing strip, said fastening means comprising a shank portion extending from the backing strip in a direction away from the body, said shank portion including means adaptable to releasably secure the sponge refill assembly to to a sponge mop, whereby the refill assembly can be medially folded by bending the backing strip thin web to squeeze the sponge material for water extraction purposes.
Claim 2
Dependent Claim
234 words
In a sponge refill assembly suitable for use with a sponge mop, the combination of a body of cellulosic sponge material suitable to retain a quantity of water therewithin, said body comprising an exterior surface; a unitary backing strip applied to the body at the said exterior surface, said backing strip being fabricated of relatively thin, stiff, hard material, said backing strip being securely affixed to the body surface, the backing strip comprising a pair of spaced press feet, the press feet being separated by a weakened, medial cut out area whereby the refill assembly can be medially folded by bending the backing strip at the weakened area, the medial cut out area comprising an integral, thin web interconnecting the press feet, the said web being adapted to be bent when the refill assembly is folded, and a cut out open area intermediate the press feet and adjacent to the web, the open area being greater in area than the area of the thin web, and fastening means retained by the backing strip, said fastening means comprising a shank portion extending from the backing strip in a direction away from the body, said shank portion including means adaptable to releasably secure the sponge refill assembly to to a sponge mop, whereby the refill assembly can be medially folded by bending the backing strip thin web to squeeze the sponge material for water extraction purposes.
Claim 3
Dependent Claim
38 words
The refill assembly of claim 1 wherein the thin web comprises a pair of spaced, thin sections interconnecting the press feet and wherein a part of the cut out area is positioned in between the said thin sections.
Claim 4
Dependent Claim
19 words
The refill assembly according to claim 2 wherein at least one of the pair of thin sections is curved.
Claim 5
Dependent Claim
26 words
The refill assembly of claim 2 wherein a part of the cut out area is positioned on each side of each of the said thin sections.
Claim 6
Dependent Claim
223 words
In a sponge refill assembly suitable for use with a sponge mop, the combination of a body of cellulosic sponge material suitable to retain a quantity of water therewithin, said body comprising an exterior surface; a backing strip applied to the body at the said exterior surface, said backing strip being fabricated of relatively thin, stiff, hard material, said backing strip being securely affixed to the body surface, said backing strip comprising at least a pair of spaced press feet, the said press feet being separated by a weakened area whereby the refill assembly can be medially folded by bending the backinhg strip at the weakened area, said press feet being interconnected by a thin web, the said web being adapted to be bent when the refill assembly is folded, the interconnecting web comprising a pair of thin, arcuate sections, the said arcuate sections and the said press feet defining a circular center opening, the arcuate sections and the center opening being adapted to facilitate bending of the backing strip when the refill assembly is folded for water extraction; and fastening means retained by the backing strip, said fastening means comprising a shank portion extending from the backing strip in a direction away from the body, said shank portion including means adaptable to releasably secure the sponge refill assembly to a sponge mop.
Claim 7
Dependent Claim
223 words
In a sponge refill assembly suitable for use with a sponge mop, the combination of a body of cellulosic sponge material suitable to retain a quantity of water therewithin, said body comprising an exterior surface; a backing strip applied to the body at the said exterior surface, said backing strip being fabricated of relatively thin, stiff, hard material, said backing strip being securely affixed to the body surface, said backing strip comprising at least a pair of spaced press feet, the said press feet being separated by a weakened area whereby the refill assembly can be medially folded by bending the backinhg strip at the weakened area, said press feet being interconnected by a thin web, the said web being adapted to be bent when the refill assembly is folded, the interconnecting web comprising a pair of thin, arcuate sections, the said arcuate sections and the said press feet defining a circular center opening, the arcuate sections and the center opening being adapted to facilitate bending of the backing strip when the refill assembly is folded for water extraction; and fastening means retained by the backing strip, said fastening means comprising a shank portion extending from the backing strip in a direction away from the body, said shank portion including means adaptable to releasably secure the sponge refill assembly to a sponge mop.
Claim 8
Dependent Claim
20 words
The sponge refill assembly of claim 1 wherein the backing strip is fabricated from an acrylic pvc, stiff, hard plastic.
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) | 1983-08-12 | 1984-02-11 | 1984-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-12 | 1988-02-11 | 1988-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-12 | 1992-02-11 | 1992-08-12 | $7700.00 | Window Closed / Lapsed |