US4244768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a grating constructed of resin bonded fibers
Assignee: POLY-TRUSIONS INC 4500 CAMPUS DR SUITE 139 NEWPORT BEACH
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Filing: 1977-12-23
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Granted: 1981-01-13
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Expires: 1997-12-23
Abstract
Abstract A resin bonded glass fiber grating adhesively bonded together in unitary construction to form a lightweight, high strength industrial grating, which may include a non-skid elastomer surface and the capability to be rolled up for storage and a method of constructing the same.
Inventors
- 👤 Joseph W. Wiechowski
- 👤 Delmar S. Miller
- 👤 Richard C. Kostner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:49
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/42; E04C2/421; E04C2/422; E04C2/425; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24174
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
152 words
A method of manufacturing a grating constructed of resin bonded fibers, comprising the steps of: extending a plurality of dowels through registered apertures in a plurality of I-elements, said apertures being substantially the same size as the cross-sectional size of the dowels; applying to the dowels adjacent to the I-elements a heat setting adhesive which has a long pot life of about an hour or more at ambient temperature and which becomes highly fluid for several seconds and then heat sets in several seconds when heated to a flow temperature of about 100° F. or more; heating the dowel and I-element intersection areas, including the adhesive, to said predetermined flow temperature to thereby cause the adhesive to become highly fluid thereby wetting the surface of the dowel and flowing by capillary action into the interior of the aperture in the I-element and thereafter heat setting to bond the dowel to the I-element.
Claim 2
Independent Claim
152 words
A method of manufacturing a grating constructed of resin bonded fibers, comprising the steps of: extending a plurality of dowels through registered apertures in a plurality of I-elements, said apertures being substantially the same size as the cross-sectional size of the dowels; applying to the dowels adjacent to the I-elements a heat setting adhesive which has a long pot life of about an hour or more at ambient temperature and which becomes highly fluid for several seconds and then heat sets in several seconds when heated to a flow temperature of about 100° F. or more; heating the dowel and I-element intersection areas, including the adhesive, to said predetermined flow temperature to thereby cause the adhesive to become highly fluid thereby wetting the surface of the dowel and flowing by capillary action into the interior of the aperture in the I-element and thereafter heat setting to bond the dowel to the I-element.
Claim 3
Dependent Claim
54 words
The method of claim 1 wherein the dowel is moved relative to the I-elements through which it extends such that the portions of the dowel to which the adhesive was applied is within the aperture in the I-element, said movement being made after the adhesive becomes highly fluid and before the adhesive heat sets.
Claim 4
Dependent Claim
27 words
The method of claim 2 wherein the I-elements include an upper surface which comprises gripping material selected from the group consisting of abrasive particles and elastomeric materials.
Claim 5
Dependent Claim
43 words
The method of claim 2 wherein the dowels extend alternately through resilient support members and I-elements, the support members extending below the lower level of the I-elements to thereby support the entire grating, when in use, above the floor and provide omnidirectional drainage.
Claim 6
Dependent Claim
40 words
The method of claim 2 wherein the dowels extend and dead-end into an aperture in an end piece which has a larger cross sectional area than the cross sectional area of the I-element and are adhered thereinto by said adhesive.
Claim 7
Dependent Claim
18 words
The method of claim 5 wherein the end piece is colored differently and more prominently than the I-elements.
Claim 8
Dependent Claim
28 words
The method of claim 2 wherein the ends of the I-elements extend and dead-end into a channel in an edge piece and are adhered thereinto by said adhesive.
Claim 9
Dependent Claim
17 words
The method of claim 2 wherein the ends are differently and more prominently colored than the I-elements.
Claim 10
Dependent Claim
18 words
The method of claim 2 wherein the dowel is resilient to thereby permit the grating to be rolled.
Claim 11
Dependent Claim
27 words
The method of claim 1 wherein the I-elements include an upper surface which comprises gripping material selected from the group consisting of abrasive particles and elastomeric materials.
Claim 12
Dependent Claim
43 words
The method of claim 1 wherein the dowels extend alternately through resilient support members and I-elements, the support members extending below the lower level of the I-elements to thereby support the entire grating, when in use, above the floor and provide omnidirectional drainage.
Claim 13
Dependent Claim
40 words
The method of claim 1 wherein the dowels extend and dead-end into an aperture in an end piece which has a larger cross sectional area than the cross sectional area of the I-elements and are adhered thereinto by said adhesive.
Claim 14
Dependent Claim
18 words
The method of claim 12 wherein the end piece is colored differently and more prominently than the I-elements.
Claim 15
Dependent Claim
28 words
The method of claim 1 wherein the ends of the I-elements extend and dead-end into a channel in an edge piece and are adhered thereinto by said adhesive.
Claim 16
Dependent Claim
17 words
The method of claim 1 wherein the ends are differently and more prominently colored than the I-elements.
Claim 17
Dependent Claim
18 words
The method of claim 1 wherein the dowel is resilient to thereby permit the grating to be rolled.
Claim 18
Dependent Claim
22 words
The method of claim 1 wherein said heating step comprises preheating said pre-assembled dowels and I-elements to at least said flow temperature.
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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) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |