Patent US4615163A successfully refreshed from Google Patents.
US4615163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced lumber
Assignee: Individual
•
Filing: 1984-10-04
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Granted: 1986-10-07
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Expires: 2004-10-04
Abstract
Abstract A wooden beam is reinforced with a polyester rod glued within groove on surface to increase the ultimate strength of the beam under stress and reduce deviation of strength between beams.
Inventors
- 👤 Albert B. Curtis
- 👤 J. Kenneth Brody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:21
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/12; E04C3/18; E04C3/185; E04C5/00; E04C5/07
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
86 words
A composite integral structural support member adapted to be cut to the desired length, if necessary, and incorporated into a load bearing structure for the purpose of accepting at least a portion of the load imposed upon such structure, said member comprising a wooden beam, a groove of predetermined depth longitudinally disposed within a surface of said wooden beam, and an unstressed nonwood, nonmetallic reinforcing rod adhesively fixed within said groove whereby said support member has an ultimate strength greater than that of said wooden beam.
Claim 2
Dependent Claim
86 words
A composite integral structural support member adapted to be cut to the desired length, if necessary, and incorporated into a load bearing structure for the purpose of accepting at least a portion of the load imposed upon such structure, said member comprising a wooden beam, a groove of predetermined depth longitudinally disposed within a surface of said wooden beam, and an unstressed nonwood, nonmetallic reinforcing rod adhesively fixed within said groove whereby said support member has an ultimate strength greater than that of said wooden beam.
Claim 3
Dependent Claim
16 words
The structural support member of claim 1 wherein the surface of said reinforcement rod is abraded.
Claim 4
Dependent Claim
30 words
The structural support member of claim 1 wherein the exposed surfaces of said rod, after affixation, are no higher than the plane formed by adjacent surfaces of said wooden beam.
Claim 5
Dependent Claim
41 words
A reinforced structural support member comprising a wooden beam, a groove of predetermined depth longitudinally disposed within a surface of said wooden beam, and an unstressed reinforcing rod of glass fibers bonded with a polyester resin adhesively affixed within said groove.
Claim 6
Dependent Claim
41 words
A reinforced structural support member comprising a wooden beam, a groove of predetermined depth longitudinally disposed within a surface of said wooden beam, and an unstressed reinforcing rod of glass fibers bonded with a polyester resin adhesively affixed within said groove.
Claim 7
Dependent Claim
24 words
The structural support member of claim 4 wherein said rod is circular in cross-section and said groove is formed with a complementarily-shaped bottom surface.
Claim 8
Dependent Claim
21 words
The structural support member of claim 4 wherein said reinforcement rod and said groove each are of generally triangular cross-sectional configuration.
Claim 9
Dependent Claim
22 words
The structural member of claim 4 wherein said reinforcement rod has a bull-nosed cross-sectional configuration, and said groove is of complementary cross-section.
Claim 10
Dependent Claim
26 words
The structural support member of claim 7 wherein the exposed surface of said reinforcement rod is substantially coplanar with the adjacent surfaces of said wooden beam.
Claim 11
Dependent Claim
17 words
A structural support member as in claim 4 wherein said wooden beam is a single wooden piece.
Claim 12
Dependent Claim
19 words
A structural support member as in claim 4 wherein said wooden beam comprises wood flakes bonded by a resin.
Claim 13
Dependent Claim
18 words
A structural support member as in claim 4 wherein said wooden beam is laminated from smaller wood pieces.
Claim 14
Dependent Claim
43 words
A reinforced structural support member comprising a wooden beam, a groove of predetermined depth longitudinally disposed within a surface of said wooden beam, a plurality of holes in the bottom of said groove, and an unstressed reinforcing rod adhesively affixed within said groove.
Claim 15
Dependent Claim
43 words
A reinforced structural support member comprising a wooden beam, a groove of predetermined depth longitudinally disposed within a surface of said wooden beam, a plurality of holes in the bottom of said groove, and an unstressed reinforcing rod adhesively affixed within said groove.
Claim 16
Dependent Claim
55 words
A reinforced structural support member comprising a wooden beam, a groove of predetermined depth longitudinally disposed within a surface of said wooden beam, a plurality of notches in the wall of said groove extending in a direction transverse to the longitudinal axis of said groove, and an unstressed reinforcing rod adhesively affixed within said groove.
Claim 17
Dependent Claim
55 words
A reinforced structural support member comprising a wooden beam, a groove of predetermined depth longitudinally disposed within a surface of said wooden beam, a plurality of notches in the wall of said groove extending in a direction transverse to the longitudinal axis of said groove, and an unstressed reinforcing rod adhesively affixed within said groove.
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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) | 1989-10-06 | 1990-04-07 | 1990-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-06 | 1994-04-07 | 1994-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-06 | 1998-04-07 | 1998-10-07 | $7700.00 | Window Closed / Lapsed |