Patent US4240677A successfully refreshed from Google Patents.
Patent US3713677A successfully refreshed from Google Patents.
US3713677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing clamps
Assignee: PREEZ J DU
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Filing: 1971-02-04
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Granted: 1973-01-30
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Expires: 1991-02-04
Abstract
Abstract The invention concerns a tubing clamp for clamping a piece of tubing to a fixed object, further pieces of tubing, and the like. The clamp comprises a first member adapted to fit across the end of the tubing, a second member adapted to be positioned within the tubing and having flanges which are expanded against the inside of the tubing by nuts and the like threaded on a bolt-like member passing from the first member through the second member. The bolt-like member may be part of a turnbuckle.
Inventors
- 👤 Preez J Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:09
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/02; F16B2/00; F16B2/02; F16B2/06; F16B2/065; F16B7/025; F16B7/06; F16B2200/00; F16B2200/40; Y; Y10; Y10T; Y10T403/00; Y10T403/53; Y10T403/535; Y10T403/55; Y10T403/557; Y10T403/76
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
143 words
A structural joint comprising a first length of hollow tubing, a first member fitting across one end of said length of hollow tubing, a second member positioned within the length of hollow tubing and having flanges expandable outwardly against the inside of the length of hollow tubing, bolt means passing from the first member through the second member, nut means threaded on bolt means and expanding the flanges of the second member outwardly into rigid gripping contact with the inside of the length of hollow tubing, a second length of hollow tubing positioned against the first member and extending across the end of the first member, a saddle positioned against the second length of hollow tubing on the side substantially diametrically opposed from the first member, and bolts connecting the saddle to the first member and straddling the second length of hollow tubing.
Claim 2
Dependent Claim
143 words
A structural joint comprising a first length of hollow tubing, a first member fitting across one end of said length of hollow tubing, a second member positioned within the length of hollow tubing and having flanges expandable outwardly against the inside of the length of hollow tubing, bolt means passing from the first member through the second member, nut means threaded on bolt means and expanding the flanges of the second member outwardly into rigid gripping contact with the inside of the length of hollow tubing, a second length of hollow tubing positioned against the first member and extending across the end of the first member, a saddle positioned against the second length of hollow tubing on the side substantially diametrically opposed from the first member, and bolts connecting the saddle to the first member and straddling the second length of hollow tubing.
Claim 3
Dependent Claim
143 words
A structural joint comprising a first length of hollow tubing, a first member fitting across one end of said length of hollow tubing, a second member positioned within the length of hollow tubing and having flanges expandable outwardly against the inside of the length of hollow tubing, bolt means passing from the first member through the second member, nut means threaded on bolt means and expanding the flanges of the second member outwardly into rigid gripping contact with the inside of the length of hollow tubing, a second length of hollow tubing positioned against the first member and extending across the end of the first member, a saddle positioned against the second length of hollow tubing on the side substantially diametrically opposed from the first member, and bolts connecting the saddle to the first member and straddling the second length of hollow tubing.
Claim 4
Dependent Claim
143 words
A structural joint comprising a first length of hollow tubing, a first member fitting across one end of said length of hollow tubing, a second member positioned within the length of hollow tubing and having flanges expandable outwardly against the inside of the length of hollow tubing, bolt means passing from the first member through the second member, nut means threaded on bolt means and expanding the flanges of the second member outwardly into rigid gripping contact with the inside of the length of hollow tubing, a second length of hollow tubing positioned against the first member and extending across the end of the first member, a saddle positioned against the second length of hollow tubing on the side substantially diametrically opposed from the first member, and bolts connecting the saddle to the first member and straddling the second length of hollow tubing.
Claim 5
Dependent Claim
37 words
A structural joint according to claim 1, wherein the first member has a shoulder portion adapted to fit against the end of the tubing, and a neck portion adapted to fit within the end of the tubing.
Claim 6
Dependent Claim
18 words
A structural joint according to claim 2, wherein the first and second members are integral with one another.
Claim 7
Dependent Claim
19 words
A structural joint according to claim 3 wherein the bolt means passes freely through the first and second members.
Claim 8
Dependent Claim
17 words
A structural joint according to claim 1 wherein the bolt means is fast with the first member.
Claim 9
Dependent Claim
74 words
A structural joint according to claim 1, wherein the saddle has a bolt means extending outwardly thereform and passing into a third length of hollow tubing, a third member having outwardly expandable flanges being positioned on the bolt means within the third length of hollow tubing, and wherein nut means are threaded on the bolt means to expand the flanges of the thin member against the inside of the third length of hollow tubing.
Claim 10
Dependent Claim
40 words
A structural joint according to claim 4 wherein the second length of hollow tubing is positioned against the first member with its longitudinal axis at an angle of 90* to the longitudinal axis of the first length of hollow tubing.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |