US3854831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner connector for tubular members
Assignee: Individual
•
Filing: 1970-08-31
•
Granted: 1974-12-17
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Expires: 1990-08-31
Abstract
Abstract A fitting for interconnecting generally square-shaped tubular members wherein the fitting has projecting arms which are ensleeved within the tubular members, the arms being structured to provide a ledge at the base or root thereof to develop stabilization of the thus interconnected tubular members in addition to the use of any securing bolt.
Inventors
- 👤 K Gutner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:21
CPC Classifications
A; A47; A47B; A47B47/00; A47B47/0008; A47B2220/00; A47B2220/11; A47B2230/00; A47B2230/03; F; F16; F16B; F16B12/00; F16B12/44; F16B2012/446; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/347; Y10T403/46; Y10T403/4602; Y10T403/55; Y10T403/555; Y10T403/557
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
129 words
In combination, a fitting for interconnecting tubular members of generally square cross-section, comprising a unitary body having at least two integral projections extending away therefrom and adapted to be ensleeved within a tubular member, at least one projection being an arm having, at its root, cross-sectional dimensions sized to snugly fit said arm to its associated tubular member, the height dimension of said one arm being reduced adjacent the end of said arm, said arm being equipped with a tapped bore for receiving a bolt to fix said associated tubular member relative to a given arm, a bolt and tubular member, said bolt having a raised head portion operative upon withdrawal to engage an opening in said tubular member to cinch said tubular member in place on said fitting.
Claim 2
Dependent Claim
129 words
In combination, a fitting for interconnecting tubular members of generally square cross-section, comprising a unitary body having at least two integral projections extending away therefrom and adapted to be ensleeved within a tubular member, at least one projection being an arm having, at its root, cross-sectional dimensions sized to snugly fit said arm to its associated tubular member, the height dimension of said one arm being reduced adjacent the end of said arm, said arm being equipped with a tapped bore for receiving a bolt to fix said associated tubular member relative to a given arm, a bolt and tubular member, said bolt having a raised head portion operative upon withdrawal to engage an opening in said tubular member to cinch said tubular member in place on said fitting.
Claim 3
Dependent Claim
157 words
A fitting for interconnecting tubular members of generally square cross-section, comprising a unitary body having at least two integral projections extending away therefrom and adapted to be ensleeved within a tubular member, at least one projection being an arm having, at its root, cross-sectional dimensions sized to snugly fit said arm to its associated tubular member, the height dimension of said one arm being reduced adjacent the end of said arm, said arm being equipped with a tapped bore for receiving a bolt to fix said associated tubular member relative to a given arm, said fitting being equipped with a generally non-resilient stub leg orthogonally related to said arm, said leg being tapered in proceeding away from said body and being generally square in transverse section, at least one of the faces of said stub leg being equipped with stepped rib means extending longitudinally of said stub leg and positioned adjacent the root of said stub leg.
Claim 4
Dependent Claim
157 words
A fitting for interconnecting tubular members of generally square cross-section, comprising a unitary body having at least two integral projections extending away therefrom and adapted to be ensleeved within a tubular member, at least one projection being an arm having, at its root, cross-sectional dimensions sized to snugly fit said arm to its associated tubular member, the height dimension of said one arm being reduced adjacent the end of said arm, said arm being equipped with a tapped bore for receiving a bolt to fix said associated tubular member relative to a given arm, said fitting being equipped with a generally non-resilient stub leg orthogonally related to said arm, said leg being tapered in proceeding away from said body and being generally square in transverse section, at least one of the faces of said stub leg being equipped with stepped rib means extending longitudinally of said stub leg and positioned adjacent the root of said stub leg.
Claim 5
Dependent Claim
157 words
A fitting for interconnecting tubular members of generally square cross-section, comprising a unitary body having at least two integral projections extending away therfrom and adapted to be ensleeved within a tubular member, at least one projection being an arm having, at its root, cross-sectional dimensions sized to snugly fit said arm to its associated tubular member, the height dimension of said one arm equipped with a tapped bore for receiving a bolt to fix said associated tubular member relative to a given arm, said fitting being equipped with a stub leg orthogonally related to said projections, each of said projections additionally being equipped with a relatively elongated tab spaced from the root thereof and with the tab length extending in a direction generally parallel with the length of said stub leg whereby additional stabilization of the connection of said fitting with a tubular member is achieved for usage of the said fitting as a bottom corner fitting.
Claim 6
Dependent Claim
157 words
A fitting for interconnecting tubular members of generally square cross-section, comprising a unitary body having at least two integral projections extending away therfrom and adapted to be ensleeved within a tubular member, at least one projection being an arm having, at its root, cross-sectional dimensions sized to snugly fit said arm to its associated tubular member, the height dimension of said one arm equipped with a tapped bore for receiving a bolt to fix said associated tubular member relative to a given arm, said fitting being equipped with a stub leg orthogonally related to said projections, each of said projections additionally being equipped with a relatively elongated tab spaced from the root thereof and with the tab length extending in a direction generally parallel with the length of said stub leg whereby additional stabilization of the connection of said fitting with a tubular member is achieved for usage of the said fitting as a bottom corner fitting.
Claim 7
Dependent Claim
119 words
A fitting for interconnecting tubular members of generally square cross-section, comprising a unitary body having at least two integral projections extending away therefrom and adapted to be ensleeved within a tubular member, at least one projection being an arm having, at its root, cross-sectional dimensions sized to snugly fit said arm to its associated tubular member, the height dimension of said one arm being reduced adjacent the end of said arm, said arm being equipped with a tapped bore for receiving a bolt to fit said associated tubular member relative to a given arm, said arm being equipped with a tab-like element provided at the end thereof remote from said body and extending generally parallel to said tapped bore.
Claim 8
Dependent Claim
119 words
A fitting for interconnecting tubular members of generally square cross-section, comprising a unitary body having at least two integral projections extending away therefrom and adapted to be ensleeved within a tubular member, at least one projection being an arm having, at its root, cross-sectional dimensions sized to snugly fit said arm to its associated tubular member, the height dimension of said one arm being reduced adjacent the end of said arm, said arm being equipped with a tapped bore for receiving a bolt to fit said associated tubular member relative to a given arm, said arm being equipped with a tab-like element provided at the end thereof remote from said body and extending generally parallel to said tapped bore.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |