US4923738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interstitially capacitive absorptive articles
Assignee: Newell Industry International
•
Filing: 1988-05-02
•
Granted: 1990-05-08
•
Expires: 2008-05-02
Abstract
Abstract A system comprising means for retaining fluids, such as liquids e.g., by mopping or sopping action, through the use of three-dimensional fabrics or other material articles which are structured to create optimally sized and proportioned interstices providing maximum holding capacitance ability for picking up, retaining, and releasing such fluids.
Inventors
- 👤 Robert D. Newell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:35
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/249921
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
39 words
A mop head comprising a three-dimensional open lattice filamentous polyhedral structure defining interstitial spaces therein of sufficient size and shape to take up liquid by capillarity and surface tension effects producing flow of said liquid into said interstitial spaces.
Claim 2
Dependent Claim
39 words
A mop head comprising a three-dimensional open lattice filamentous polyhedral structure defining interstitial spaces therein of sufficient size and shape to take up liquid by capillarity and surface tension effects producing flow of said liquid into said interstitial spaces.
Claim 3
Dependent Claim
16 words
A mop head according to claim 2, wherein said three-dimensional structure is a tetrahedral filar structure.
Claim 4
Dependent Claim
31 words
A mop head according to claim 2, wherein said tetrahedral filar structure comprises legs formed of a material selected from the group consisting of wood, metals, plastics, ceramics, and fibrous materials.
Claim 5
Dependent Claim
14 words
A mop head according to claim 1, comprising a plurality of said three-dimensional structure.
Claim 6
Dependent Claim
19 words
A mop head according to claim 1, including a twisted fibrous web, comprising a plurality of said three-dimensional structures.
Claim 7
Dependent Claim
15 words
A mop head according to claim 5, wherein said three-dimensional structure is a tetrahedral shape.
Claim 8
Dependent Claim
16 words
A map head according to claim 5, wherein said three-dimension structures are of involute curvate shape.
Claim 9
Dependent Claim
12 words
A mop head according to claim 1, formed of a filar material.
Claim 10
Dependent Claim
24 words
A mop head according to claim 8, in the form of a web selected from the group consisting of non-woven, woven and knitted webs.
Claim 11
Dependent Claim
12 words
A mop head according to claim 1, formed from a solid web.
Claim 12
Dependent Claim
16 words
A mop head according to claim 1, wherein said three-dimensional structure comprises twisted non-woven fibrous webs.
Claim 13
Dependent Claim
26 words
A mop head according to claim 1, wherein said three-dimensional structure comprises twisted fibrous webs selected from the group consisting of non-woven, woven, and knitted webs.
References Cited (Backward Citations)
US4448832A
Cited
US4717616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-07 | 1993-11-06 | 1994-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-07 | 1997-11-06 | 1998-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-07 | 2001-11-06 | 2002-05-08 | $7700.00 | Window Closed / Lapsed |