Patent US2728894A successfully refreshed from Google Patents.
US3900933A
Expired / Lapsed
US
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Clamp device
Assignee: Emco Industries Inc
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Filing: 1973-11-08
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Granted: 1975-08-26
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Expires: 1993-11-08
Abstract
Abstract A clamp device for clamping first and second telescopically mounted tubes comprising a preformed bolt clamp and a saddle element. The preformed bolt clamp is of unitary and substantially rigid material and has a center portion and opposite end portions. The center portion extends completely around the outer surface of the outer tube with the end portions thereof extending outwardly from the outer tube in substantially the same direction. The saddle element embraces a part of the center portion of the bolt clamp and has openings formed therein to receive the end portions of the bolt clamp. The saddle element is comprised of a stiff and rigid material having some resiliency. Fastening and tightening means comprising nuts are mounted on the end portions of the bolt clamp and are tightened to draw the saddle element into tight, intimate and continuous engagement with the adjacent part of the center portion of the bolt clamp and to draw the center portion of the bolt clamp into tight, intimate and continuous engagement with the outer surface of the outer tube element. The method of securing first and second telescopically mounted tubes is also disclosed.
Inventors
- 👤 Milton C Engman
- 👤 Stanley J Siberell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:24
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F16; F16B; F16B2/00; F16B2/02; F16B2/06; F16B2/08; F16L; F16L25/00; F16L25/04; F01N2450/00; F01N2450/24; F01N2470/00; F01N2470/24; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1433; Y10T24/1435; Y10T24/1437
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
239 words
The combination of a clamp device and two telescopically mounted tube elements, comprising a first tube element having at least one open end, a second tube element telescopically mounted in close fitting relationship within the open end of said first tube element, a preformed bolt clamp of unitary and substantially rigid material having a center portion and opposite end portions, said center portion extending completely around the outer surface of said first tube element with said end portions extending outwardly from said first tube element in substantially the same direction, a saddle element embracing a part of the center portion off said bolt clamp, and having openings therein to receive the end portions of said bolt clamp, said saddle element being of stiff and rigid material, fastening and tightening means on the end portions of said bolt clamp and being tightened to draw said saddle element into tight, intimate and continuous engagement with the adjacent part of the center portion of said bolt clamp, and to draw the center portion of said bolt clamp into tight, intimate and continuous engagement with the outer surface of said first tube element, said saddle element having a configuration such that it is spaced from the outer surface of said tube element so that said saddle element bears only against the said adjacent part of the center portion of said bolt clamp, said bolt clamp having a circular cross-section for its entire length.
Claim 2
Dependent Claim
239 words
The combination of a clamp device and two telescopically mounted tube elements, comprising a first tube element having at least one open end, a second tube element telescopically mounted in close fitting relationship within the open end of said first tube element, a preformed bolt clamp of unitary and substantially rigid material having a center portion and opposite end portions, said center portion extending completely around the outer surface of said first tube element with said end portions extending outwardly from said first tube element in substantially the same direction, a saddle element embracing a part of the center portion off said bolt clamp, and having openings therein to receive the end portions of said bolt clamp, said saddle element being of stiff and rigid material, fastening and tightening means on the end portions of said bolt clamp and being tightened to draw said saddle element into tight, intimate and continuous engagement with the adjacent part of the center portion of said bolt clamp, and to draw the center portion of said bolt clamp into tight, intimate and continuous engagement with the outer surface of said first tube element, said saddle element having a configuration such that it is spaced from the outer surface of said tube element so that said saddle element bears only against the said adjacent part of the center portion of said bolt clamp, said bolt clamp having a circular cross-section for its entire length.
Claim 3
Dependent Claim
28 words
The combination of claim 1 wherein said center portion of said bolt clamp has arcuately deformed at least said first tube element at the area of engagement therewith.
Claim 4
Dependent Claim
22 words
The combination of claim 1 wherein said center portion of said bolt clamp has arcuately deformed said first and second tube elements.
Claim 5
Dependent Claim
18 words
The combination of claim 1 wherein said saddle is deformed into tight continuous engagement with said bolt clamp.
Claim 6
Independent Claim
130 words
The method of sealing together two telescopically positioned tube elements, comprising, placing the outer portion of a substantially rigid performed unitary bolt clamp completely around the circumference of the outer circumference of the outer of said tube elements, with the ends of said bolt clamp extending outwardly from said tube elements in substantially the same direction, placing a normally rigid saddle having suitable apertures over the ends of said bolt clamp wherein the saddle is free from engagement with said tube elements and wherein the saddle bears only against the center portion of said bolt clamp, and tightening said saddle against the center portion of said bolt clamp to cause said bolt clamp to exert substantially uniform pressure on said tube elements completely around the circumference of said outer tube.
Claim 7
Independent Claim
130 words
The method of sealing together two telescopically positioned tube elements, comprising, placing the outer portion of a substantially rigid performed unitary bolt clamp completely around the circumference of the outer circumference of the outer of said tube elements, with the ends of said bolt clamp extending outwardly from said tube elements in substantially the same direction, placing a normally rigid saddle having suitable apertures over the ends of said bolt clamp wherein the saddle is free from engagement with said tube elements and wherein the saddle bears only against the center portion of said bolt clamp, and tightening said saddle against the center portion of said bolt clamp to cause said bolt clamp to exert substantially uniform pressure on said tube elements completely around the circumference of said outer tube.
Claim 8
Dependent Claim
29 words
The method of claim 5 wherein at least the outer tube element is arcuately deformed by the center portion of said bolt clamp at the area of engagement therewith,
Claim 9
Dependent Claim
22 words
The method of claim 5 wherein both of the tube elements are arcuately deformed by the center portion of said bolt clamp.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |