Patent US3705432A successfully refreshed from Google Patents.
US3705432A
Expired / Lapsed
US
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Securing device for a flotation assembly
Assignee: Data Packaging Corp
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Filing: 1971-05-25
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Granted: 1972-12-12
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Expires: 1991-05-25
Abstract
Abstract A flotation assembly for a riser pipe generally includes a pair of elongated semiannular flotation collars fabricated in part of a buoyant material and each including a pair of spaced clamps useful in attaching the collars about the riser pipe. These clamps are preferably imbedded within an inner surface of the collar. The present invention is directed to securing devices for retaining the clamps, and in turn the collars, in place tightly against the riser pipe. These securing devices also hold the choke and kill lines, conventionally associated with a riser pipe, in place adjacent the riser pipe.
Inventors
- 👤 Louie W Watkins Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:58
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/01; E21B17/012; F; F16; F16L; F16L1/00; F16L1/12; F16L1/20; F16L1/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
In a flotation assembly including at least a pair of generally semiannular flotation collars each having arcuate clamp half means associated therewith, a securing device for fastening corresponding clamp half means of separate collars about a pipe comprising: a pair of U-bolts each having threaded ends, said clamp half means each including at least a pair of posts protruding therefrom in opposite directions and extending in a direction substantially lengthwise of said pipe, each of said U-bolts receivable about aligned posts extending in the same direction of corresponding clamp half means, and a keeper means having four holes therein for receiving the ends of the pair of U-bolts, said keeper means including a butting extension in facing relationship to ends of said clamp half means and adapted to be tightened against said ends thereby drawings said aligned posts toward one another and fastening said clamp half means to said pipe.
Claim 2
Dependent Claim
150 words
In a flotation assembly including at least a pair of generally semiannular flotation collars each having arcuate clamp half means associated therewith, a securing device for fastening corresponding clamp half means of separate collars about a pipe comprising: a pair of U-bolts each having threaded ends, said clamp half means each including at least a pair of posts protruding therefrom in opposite directions and extending in a direction substantially lengthwise of said pipe, each of said U-bolts receivable about aligned posts extending in the same direction of corresponding clamp half means, and a keeper means having four holes therein for receiving the ends of the pair of U-bolts, said keeper means including a butting extension in facing relationship to ends of said clamp half means and adapted to be tightened against said ends thereby drawings said aligned posts toward one another and fastening said clamp half means to said pipe.
Claim 3
Dependent Claim
24 words
A securing device as set forth in claim 1 wherein each said post has an outer shoulder that prevents the U-bolt from slipping thereoff.
Claim 4
Dependent Claim
27 words
A securing device as set forth in claim 1 wherein the ends of said clamp half means are at least partially curved to accommodate a second pipe.
Claim 5
Dependent Claim
33 words
A securing device as set forth in claim 1 and comprising a plurality of nuts threaded to said threaded ends of said U-bolts to tighten said keeper means against said clamp half means.
Claim 6
Dependent Claim
25 words
A securing device as set forth in claim 1 including a pair of butting extensions one tightening against an end of each clamp half means.
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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |