US4235559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction of metal articles
Assignee: Industrial Management Co
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Filing: 1979-06-14
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Granted: 1980-11-25
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Expires: 1999-06-14
Abstract
Abstract The invention relates to the construction of metal articles such as work benches, pallet racks, etc., by way of example. In a typical construction upright hollow metal legs are secured to a flat table or platform surface. The upright members or legs preferably may be square in cross section. The upper ends of the legs are secured to mutually perpendicular transverse members which in turn are secured to the flat platform surface. The transverse members are preferably channel shaped with side flanges. An end plug or fitting is inserted into the upper end of each leg, the fitting being tapped to receive stud bolts. The ends of the transverse members are secured to the legs and the end plugs by stud bolts.
Inventors
- 👤 Jack Rooklyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:42
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/10; F16B12/28; F16B12/30; F16B2200/00; F16B2200/40; F16B2200/403; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/342
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
152 words
In the construction of metal articles having upright members and transverse members, in combination, an upright hollow member having an end part having flat side portions lying in planes, transverse channel members constructed to be secured to the end portion of the said upright member by way of joints, each transverse member terminating in joining means including at least one transverse portion closing the end of the channel and configurated to fit against a side of the end portions of the upright member, a fitting in the form of a plug positioned within the end of said upright member having tapped holes to receive securing means, a securing means securing the said joining means to said upright member and fitting said flat side portions of said member having flat inner surfaces, said plug having flat sides, each of said flat inner surfaces having flush engagement against a flat side of said plug.
Claim 2
Dependent Claim
152 words
In the construction of metal articles having upright members and transverse members, in combination, an upright hollow member having an end part having flat side portions lying in planes, transverse channel members constructed to be secured to the end portion of the said upright member by way of joints, each transverse member terminating in joining means including at least one transverse portion closing the end of the channel and configurated to fit against a side of the end portions of the upright member, a fitting in the form of a plug positioned within the end of said upright member having tapped holes to receive securing means, a securing means securing the said joining means to said upright member and fitting said flat side portions of said member having flat inner surfaces, said plug having flat sides, each of said flat inner surfaces having flush engagement against a flat side of said plug.
Claim 3
Dependent Claim
38 words
A construction as in claim 1 wherein the end part of said upright member is square in cross section, said plug being square and of a size to fit snugly in said end part of the upright member.
Claim 4
Dependent Claim
48 words
A construction as in claim 1 wherein said joining means is constructed to provide a flat surface at the end of the transverse member positioned to fit against a surface of the upright member, and stud bolt means securing the joining means to the upright member and fitting.
Claim 5
Dependent Claim
17 words
A construction as in claim 3 wherein the said plug having tapped holes to receive stud bolts.
Claim 6
Dependent Claim
25 words
A construction as in claim 4 wherein said plug has top flange means positioned to fit against the top edges of the upright hollow member.
Claim 7
Dependent Claim
48 words
A construction as in claim 3 wherein each transverse member is of channel shape, said transverse portion of the transverse member being in the form of an end plate welded to the end of the channel shaped transverse member, the said stud bolts extending through the end plate.
Claim 8
Dependent Claim
43 words
A construction as in claim 1 including a second transverse member, the end part of the upright member providing a square cross section and the ends of the transverse members being secured to the end of the upright member in mutually perpendicular relationship.
References Cited (Backward Citations)
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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) | 1983-11-25 | 1984-05-26 | 1984-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-25 | 1988-05-26 | 1988-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-25 | 1992-05-26 | 1992-11-25 | $7700.00 | Window Closed / Lapsed |