US4622257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-skid fiber/cement tile
Assignee: THOM-MCI Inc A CORPOF
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Filing: 1985-08-08
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Granted: 1986-11-11
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Expires: 2005-08-08
Abstract
Abstract A floor tile having a non-skid surface and a method of forming same that includes a base member formed from a fiber/cement mixture that is fireproof, waterproof and will not corrode, wherein at least one surface of the base member is coated with a first layer of bonding material that is impregnated with a selective size of grit particles, and is then covered with a second layer of bonding material to fixedly secure the grit particles within the first bonding layer, the grit particles having a size greater than the thickness of the first bonding layer so as to protrude therefrom.
Inventors
- 👤 Thomas L. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:25
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/10; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/249968; Y10T428/249986; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31551
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
118 words
A tile having a non-skid surface, comprising: a base member formed from a fiber/cement mixture, said base member including an upper surface; a bonding layer of material coated over said upper surface of said base member; grit particles disseminated in said bonding layer wherein the size of said grit particles is greater than the thickness of said bonding layer such that a portion of said grit particles extend above the surface of said bonding layer; and a, finish layer of material coated over said bonding layer, so as to firmly secure said grit particles within said bonding layer, said finish layer having a thickness which allows a portion of said grit particles to extend above said finish layer.
Claim 2
Dependent Claim
118 words
A tile having a non-skid surface, comprising: a base member formed from a fiber/cement mixture, said base member including an upper surface; a bonding layer of material coated over said upper surface of said base member; grit particles disseminated in said bonding layer wherein the size of said grit particles is greater than the thickness of said bonding layer such that a portion of said grit particles extend above the surface of said bonding layer; and a, finish layer of material coated over said bonding layer, so as to firmly secure said grit particles within said bonding layer, said finish layer having a thickness which allows a portion of said grit particles to extend above said finish layer.
Claim 3
Dependent Claim
25 words
A tile as recited in claim 1, wherein said bonding layer of material includes catalyzed resin, and wherein said finish layer of material includes polyurethane.
Claim 4
Dependent Claim
14 words
A tile as recited in claim 2, wherein said catalyzed resin is an epoxy.
Claim 5
Dependent Claim
18 words
A tile as recited in claim 1, wherein said bonding and finish layers of material include catalyzed resin.
Claim 6
Dependent Claim
17 words
A tile as recited in claim 1, wherein said bonding and finish layers of material include polyurethane.
Claim 7
Dependent Claim
19 words
A tile as recited in claim 1, wherein said base member has a thickness of between 1/8" to 1".
Claim 8
Dependent Claim
20 words
A tile as recited in claim 1, wherein said base member includes cement, crushed limestone, volcanic ash, and fibrous material.
Claim 9
Dependent Claim
41 words
A tile as recited in claim 2, wherein an additional layer of polyurethane is coated over said finish layer of polyurethane said additional layer having a thickness which allows a portion of said grit particles to extend above said additional layer.
Claim 10
Independent Claim
128 words
A method of forming a non-skid tile, comprising the steps of: coating at least one surface of a fiber/cement tile base member with a bonding layer of a predetermined thickness; disseminating grit particles of a predetermined size within said bonding layer while said bonding layer is in a wet state, said grit particle size being greater than the thickness of said bonding layer; drying said bonding layer thereby securing said grit particles to said tile base member; coating said bonding layer of material with a finish layer of material said finish layer having a thickness to allow a portion of said grit particles to extend above said finish layer; and drying said finish layer of material so as to fixedly secure said grit particles within said bonding layer.
Claim 11
Independent Claim
128 words
A method of forming a non-skid tile, comprising the steps of: coating at least one surface of a fiber/cement tile base member with a bonding layer of a predetermined thickness; disseminating grit particles of a predetermined size within said bonding layer while said bonding layer is in a wet state, said grit particle size being greater than the thickness of said bonding layer; drying said bonding layer thereby securing said grit particles to said tile base member; coating said bonding layer of material with a finish layer of material said finish layer having a thickness to allow a portion of said grit particles to extend above said finish layer; and drying said finish layer of material so as to fixedly secure said grit particles within said bonding layer.
Claim 12
Dependent Claim
17 words
A method as recited in claim 9, wherein said bonding layer of material includes a catalyzed resin.
Claim 13
Dependent Claim
17 words
A method as recited in claim 10, wherein the aforesaid finish layer of material includes catalyzed resin.
Claim 14
Dependent Claim
13 words
A method as recited in claim 11, wherein said catalyzed resin is epoxy.
Claim 15
Dependent Claim
16 words
A method as recited in claim 10, wherein the aforesaid finish layer of material includes polyurethane.
Claim 16
Dependent Claim
18 words
A method as recited in claim 9, wherein said bonding layer and the aforesaid finish layer include polyurethane.
Claim 17
Dependent Claim
22 words
A method as recited in claim 9, wherein said fiber/cement tile base member includes cement, crushed limestone, volcanic ash, and fibrous material.
Claim 18
Dependent Claim
22 words
A method as recited in claim 15, wherein said finish layer of material has a viscosity of between 610 and 700 centipoises.
References Cited (Backward Citations)
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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) | 1989-11-10 | 1990-05-12 | 1990-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-10 | 1994-05-12 | 1994-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-10 | 1998-05-12 | 1998-11-11 | $7700.00 | Window Closed / Lapsed |