Patent US4489519A successfully refreshed from Google Patents.
US4489519A
Expired / Lapsed
US
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Edge guard
Assignee: Adell Corp
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Filing: 1983-09-19
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Granted: 1984-12-25
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Expires: 2003-09-19
Abstract
Abstract An edge guard of generally U-shaped cross section for fitting onto an edge comprises an insert having a cross section corresponding to the general U-shaped cross section of the edge guard and non-metallic material encapsulating said insert. The insert is an extrusion, either metal or plastic, and the non-metallic encapsulating material is a plastic, preferably a co-extrusion co-extruded onto the insert. The insert has a sculptured, or fluted, form throughout. Various sculptured forms are disclosed. The non-metallic encapsulating material may be colored as desired to impart a desired color to the edge guard.
Inventors
- 👤 Robert Adell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:11
CPC Classifications
B; B60; B60R; B60R13/00; B60R13/04; B60R13/043
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
132 words
An edge guard of general U-shaped cross section for fitting onto an edge, said edge guard comprising an insert having a general U-shaped cross section corresponding to the U-shaped cross section of the edge guard and non-metallic material encapsulating said insert, said insert having a regular sculptured form throughout the extent of the U so as to provide stiffening to the edge guard and with the non-metallic material interlocking with the sculpturing of the insert and in which said sculptured insert comprises a main U-shaped web corresponding to the general U-shape of the cross section and said web comprising means defining longitudinal fluting providing said sculptured form, said means defining longitudinal fluting, when viewed in transverse cross section, being open toward the interior of the U and extending interiorly from said web.
Claim 2
Dependent Claim
132 words
An edge guard of general U-shaped cross section for fitting onto an edge, said edge guard comprising an insert having a general U-shaped cross section corresponding to the U-shaped cross section of the edge guard and non-metallic material encapsulating said insert, said insert having a regular sculptured form throughout the extent of the U so as to provide stiffening to the edge guard and with the non-metallic material interlocking with the sculpturing of the insert and in which said sculptured insert comprises a main U-shaped web corresponding to the general U-shape of the cross section and said web comprising means defining longitudinal fluting providing said sculptured form, said means defining longitudinal fluting, when viewed in transverse cross section, being open toward the interior of the U and extending interiorly from said web.
Claim 3
Dependent Claim
17 words
An edge guard as set forth in claim 1 in which said sculptured insert is an extrusion.
Claim 4
Dependent Claim
28 words
An edge guard as set forth in claim 1 including adhesive on the interior of the U-shaped cross section for bonding of the edge guard to the edge.
Claim 5
Dependent Claim
15 words
An edge guard as set forth in claim 1 in which said insert is plastic.
Claim 6
Dependent Claim
15 words
An edge guard as set forth in claim 1 in which said insert is metal.
Claim 7
Dependent Claim
35 words
An edge guard as set forth in claim 1 in which said non-metallic material, when the edge guard is viewed in cross section, fully covers both interior and exterior of the U of the insert.
Claim 8
Dependent Claim
117 words
An edge guard of general U-shaped cross section for fitting onto an edge, said edge guard comprising an insert having a general U-shaped cross section corresponding to the U-shaped cross section of the edge guard and non-metallic material encapsulating said insert, said insert having a regular sculptured form throughout the extent of the U so as to provide stiffening to the edge guard and with the non-metallic material interlocking with the sculpturing of the insert, and in which said sculptured insert comprises a main U-shaped web corresponding to the general U-shape of the cross section and flanges projecting from said web, and in which said flanges project in a regular pattern from both sides of said web.
Claim 9
Dependent Claim
117 words
An edge guard of general U-shaped cross section for fitting onto an edge, said edge guard comprising an insert having a general U-shaped cross section corresponding to the U-shaped cross section of the edge guard and non-metallic material encapsulating said insert, said insert having a regular sculptured form throughout the extent of the U so as to provide stiffening to the edge guard and with the non-metallic material interlocking with the sculpturing of the insert, and in which said sculptured insert comprises a main U-shaped web corresponding to the general U-shape of the cross section and flanges projecting from said web, and in which said flanges project in a regular pattern from both sides of said web.
Claim 10
Dependent Claim
127 words
An edge guard of general U-shaped cross section for fitting onto an edge, said edge guard comprising an insert having a general U-shaped cross section corresponding to the U-shaped cross section of the edge guard and non-metallic material encapsulating said insert, said insert having a regular sculptured form throughout the extent of the U so as to provide stiffening to the edge guard and with the non-metallic material interlocking with the sculpturing of the insert, and in which said sculptured insert comprises a main U-shaped web corresponding to the general U-shape of the cross section and flanges projecting from said web, and in which said flanges project in a regular pattern from only one side of said web, and said flanges project outwardly of the U-shaped web.
Claim 11
Dependent Claim
127 words
An edge guard of general U-shaped cross section for fitting onto an edge, said edge guard comprising an insert having a general U-shaped cross section corresponding to the U-shaped cross section of the edge guard and non-metallic material encapsulating said insert, said insert having a regular sculptured form throughout the extent of the U so as to provide stiffening to the edge guard and with the non-metallic material interlocking with the sculpturing of the insert, and in which said sculptured insert comprises a main U-shaped web corresponding to the general U-shape of the cross section and flanges projecting from said web, and in which said flanges project in a regular pattern from only one side of said web, and said flanges project outwardly of the U-shaped web.
Claim 12
Dependent Claim
96 words
An edge guard of general U-shaped cross section for fitting onto an edge, said edge guard comprising an insert having a general U-shaped cross section corresponding to the U-shaped cross section of the edge guard and non-metallic material encapsulating said insert, said insert having a regular sculptured form throughout the extent of the U so as to provide stiffening to the edge guard and with the non-metallic material interlocking with the sculpturing of the insert and in which said sculptured insert comprises a succession of rounded segments which tangentially join along the extent of the U.
Claim 13
Dependent Claim
96 words
An edge guard of general U-shaped cross section for fitting onto an edge, said edge guard comprising an insert having a general U-shaped cross section corresponding to the U-shaped cross section of the edge guard and non-metallic material encapsulating said insert, said insert having a regular sculptured form throughout the extent of the U so as to provide stiffening to the edge guard and with the non-metallic material interlocking with the sculpturing of the insert and in which said sculptured insert comprises a succession of rounded segments which tangentially join along the extent of the U.
Claim 14
Dependent Claim
18 words
An edge guard as set forth in claim 9 in which said rounded segments are of semi-circular shape.
Claim 15
Dependent Claim
17 words
An edge guard as set forth in claim 9 in which said segments are of circular shape.
Claim 16
Dependent Claim
15 words
An edge guard as set forth in claim 11 in which said segments are hollow.
Claim 17
Dependent Claim
17 words
An edge guard as set forth in claim 11 in which said segments include internal reinforcing ribs.
References Cited (Backward Citations)
US2348319A
Cited
US2746103A
Cited
US2954310A
Cited
US3222769A
Cited
US3363364A
Cited
US3401486A
Cited
US3706173A
Cited
DE2542436A1
Cited
US4311747A
Cited
US4304816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |