Patent US4485860A successfully refreshed from Google Patents.
US4485860A
Expired / Lapsed
US
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Forming a cylindrically shaped hole in a laminated wooden beam
Assignee: STANDARD STRUCTURES Inc
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Filing: 1983-02-28
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Granted: 1984-12-04
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Expires: 2003-02-28
Abstract
Abstract A process for forming a cylindrically shaped hole in a laminated wooden beam comprised of two or more individual wooden members. Prior to laminating the individual wooden members, the location of the cylindrically shaped hole is established. A pilot bore is then made in the wooden member established by the desired location of the cylindrically shaped hole and the individual wooden members are laminated such that the pilot bore is located proximate the interface of adjacent individual wooden members at the location determined by the to-be-formed cylindrically shaped hole. The hole is then formed by guiding a drill bit in a path established by the pilot bore.
Inventors
- 👤 Kenneth J. Avilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:59
CPC Classifications
B; B27; B27C; B27C3/00; B23; B23B; B23B35/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1064
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
130 words
A process for forming a cylindrically shaped hole in a laminated wooden beam comprised of two or more individual wooden members comprising: A. selecting the location of the cylindrically shaped hole prior to laminating the individual wooden members; B. forming a pilot bore in one of the wooden member established by the desired location of the cylindrically shaped hole, said pilot bore being characterized as having a cross-sectional area smaller than the cross-sectional area of the cylindrically shaped hole; C. laminating said individual wooden members such that said pilot bore is located proximate the interface of adjacent individual wooden members at the location determined by the to-be-formed cylindrically shaped hole; and D. forming the cylindrically shaped hole by guiding a drill bit in a path established by the pilot bore.
Claim 2
Dependent Claim
130 words
A process for forming a cylindrically shaped hole in a laminated wooden beam comprised of two or more individual wooden members comprising: A. selecting the location of the cylindrically shaped hole prior to laminating the individual wooden members; B. forming a pilot bore in one of the wooden member established by the desired location of the cylindrically shaped hole, said pilot bore being characterized as having a cross-sectional area smaller than the cross-sectional area of the cylindrically shaped hole; C. laminating said individual wooden members such that said pilot bore is located proximate the interface of adjacent individual wooden members at the location determined by the to-be-formed cylindrically shaped hole; and D. forming the cylindrically shaped hole by guiding a drill bit in a path established by the pilot bore.
Claim 3
Dependent Claim
24 words
The process of claim 1 wherein the pilot bore diagonal dimension is less than or equal to the diameter of the cylindrically shaped hole.
Claim 4
Dependent Claim
24 words
The process of claim 1 wherein the axis of the pilot bore is substantially parallel to the longitudinal axis of the laminated wooden beam.
Claim 5
Dependent Claim
14 words
The process of claim 1 wherein said pilot bore possesses a substantially square cross-section.
Claim 6
Dependent Claim
25 words
The process of claim 1 wherein said pilot bore is established to a longitudinal length approximately equal to the length of the cylindrically shaped hole.
Claim 7
Dependent Claim
27 words
The process of claim 1 wherein the laminated wooden beam comprises two or more rectangularly shaped wooden members which have been glued together along their longitudinal axes.
Claim 8
Dependent Claim
42 words
The process of claim 4 wherein three sides of the square are defined by a first wooden member in which the pilot bore is formed while the fourth side is established by the adjacent wooden member laminated to the first wooden member.
Claim 9
Dependent Claim
30 words
The process of claim 1 wherein the geometric center of the cross-section of said pilot bore substantially coincides with the geometric center of the cross-section of said cylindrically shaped hole.
References Cited (Backward Citations)
US419558A
Cited
US2301800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-04 | 1988-06-04 | 1988-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-04 | 1992-06-04 | 1992-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-04 | 1996-06-04 | 1996-12-04 | $7700.00 | Window Closed / Lapsed |