US5217319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal tactile edge-warning strip
Assignee: Advantage Metal Systems Inc
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Filing: 1991-05-24
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Granted: 1993-06-08
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Expires: 2011-05-24
Abstract
Abstract A tactile edge-warning strip made from a sheet-metal strip having a series of projections formed in the strip to present an uneven surface for tactile feedback. The upper surface is covered with a roughened coating to inhibit slipping. The strip further includes an angled strip edge portion for anchoring the strip edge into the surface to which it is fixed to inhibit lifting of the strip from the surface.
Inventors
- 👤 Helmut H. Klohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:12
CPC Classifications
E; E01; E01F; E01F1/00; A; A61; A61H; A61H3/00; A61H3/06; A61H3/066
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
57 words
A tactile edge-warning strip, comprising: an elongated steel-metal strip for fixing to a surface requiring human tactile feedback; a series of projections formed in said strip to present an uneven surface for tactile feedback; and an angled strip edge portion substantially the length of the strip for anchoring said strip into the surface to inhibit strip lifting.
Claim 2
Dependent Claim
57 words
A tactile edge-warning strip, comprising: an elongated steel-metal strip for fixing to a surface requiring human tactile feedback; a series of projections formed in said strip to present an uneven surface for tactile feedback; and an angled strip edge portion substantially the length of the strip for anchoring said strip into the surface to inhibit strip lifting.
Claim 3
Dependent Claim
24 words
The tactile strip of claim 1 further including a series of holes through the strip along its edges to allow passage of surface fasteners.
Claim 4
Dependent Claim
38 words
The tactile strip of claim 1 in which said strip includes angled strip edge portions on at least two sides of the strip and substantially the lengths of said sides to firmly anchor said strip to the surface.
Claim 5
Dependent Claim
19 words
The tactile strip of claim 1 in which said strip edge is angled at approximately 90° to said strip.
Claim 6
Dependent Claim
19 words
The tactile strip of claim 4 in which said strip edge portions approximately 1/4 to 178 below said strip.
Claim 7
Dependent Claim
14 words
The tactile strip of claim 1 in which said strip is made from aluminum.
Claim 8
Dependent Claim
15 words
The tactile strip of claim 1 in which said strip is made from stainless steel.
Claim 9
Dependent Claim
14 words
The tactile strip of claim 1 in which said projections includes truncated, tapered dimples.
Claim 10
Dependent Claim
14 words
The tactile strip of claim 1 in which said projections include elongated, linear dimples.
Claim 11
Dependent Claim
16 words
The tactile strip of claim 1 in which said projections are formed in a regular pattern.
Claim 12
Dependent Claim
30 words
The tactile strip of claim 1 in which said projections are spaced closer together toward one edge of said strip than toward the opposite edge to provide tactile strip-position warning.
Claim 13
Dependent Claim
18 words
The tactile strip of claim 1 further including means for anchoring said angled strip edge into the surface.
Claim 14
Dependent Claim
16 words
The tactile strip of claim 12 in which said means for anchoring includes a polyurethane-based sealant.
Claim 15
Dependent Claim
15 words
The tactile strip of claim 1 in which said strip is made from galvanized steel.
Claim 16
Dependent Claim
18 words
The tactile strip of claim 1 further including a roughened coating on said uneven surface to inhibit slipping.
Claim 17
Dependent Claim
16 words
The tactile strip of claim 15 in which said roughened coating includes an epoxy based substance.
Claim 18
Dependent Claim
19 words
The tactile strip of claim 16 in which said substance includes hard filler material for creating said roughened coating.
Claim 19
Dependent Claim
23 words
The tactile strip of claim 1 in which an edge of said strip is beveled to avoid sharp edges and reduce tripping hazard.
Claim 20
Dependent Claim
76 words
A tactile train platform edge-warning strip, comprising: an elongated sheet-metal strip for fixing to a train platform edge; a series of regularly-spaced projections formed in said strip to present an uneven surface for tactile feedback; a high-solids colored epoxy coating on said uneven surface to inhibit slipping; and a 1/4" to 178 " 90° angled strip edge portion substantially the length of the edge for anchoring the strip edge in the platform to inhibit strip lifting.
Claim 21
Dependent Claim
76 words
A tactile train platform edge-warning strip, comprising: an elongated sheet-metal strip for fixing to a train platform edge; a series of regularly-spaced projections formed in said strip to present an uneven surface for tactile feedback; a high-solids colored epoxy coating on said uneven surface to inhibit slipping; and a 1/4" to 178 " 90° angled strip edge portion substantially the length of the edge for anchoring the strip edge in the platform to inhibit strip lifting.
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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) | 1996-06-07 | 1996-12-07 | 1997-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-07 | 2000-12-07 | 2001-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-07 | 2004-12-07 | 2005-06-08 | $7700.00 | Window Closed / Lapsed |