US4061513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrapping apparatus for pipeline joints
Assignee: Individual
•
Filing: 1976-12-20
•
Granted: 1977-12-06
•
Expires: 1996-12-20
Abstract
Abstract Wrapping apparatus for a pipeline joint is disclosed. The preferred and illustrated embodiment incorporates a set of rollers which carry the body of the mechanism around a pipeline at the bare weld. The apparatus carries a roller and the roller dispenses sheet wrapping material. The apparatus has a framework which is somewhat similar to a clamp mechanism, having a throat which enables it to open and close and thereby clamp the mechanism to the pipe. It is adjustable to accomodate pipes of different diameters.
Inventors
- 👤 Carl G. Danielson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:59
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/02; B29C63/04; B29C63/12; B29C63/14; B65; B65H; B65H81/00; B65H81/06; F; F16; F16L; F16L55/00; F16L55/18; F16L55/16; F16L55/168; F16L55/1686
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
171 words
An apparatus for placing a cigarette wrap of insulative material around a pipe at a bare place prior to placing the pipe in the ground, comprising: two sets of first, second and third alignment rollers; a framework supporting said two sets of first, second and third rollers which positions said two sets of rollers in contact with a pipe to be coated, and wherein the two sets are spaced apart from one another and where said rollers being spaced around the pipe to clamp said framework to the pipe while yet permitting the framework to rotate around the pipe one revolution which rotational movement is supported on said rollers; and supply means carried by said framework for receiving and dispensing insulative material in sheet form directly onto the pipe with a specified tension and alignment and between said two sets of rollers to place one turn of such material on the pipe and wherein said supply means carries the sheet of material around the pipe to place a cigarette wrap thereon.
Claim 2
Independent Claim
171 words
An apparatus for placing a cigarette wrap of insulative material around a pipe at a bare place prior to placing the pipe in the ground, comprising: two sets of first, second and third alignment rollers; a framework supporting said two sets of first, second and third rollers which positions said two sets of rollers in contact with a pipe to be coated, and wherein the two sets are spaced apart from one another and where said rollers being spaced around the pipe to clamp said framework to the pipe while yet permitting the framework to rotate around the pipe one revolution which rotational movement is supported on said rollers; and supply means carried by said framework for receiving and dispensing insulative material in sheet form directly onto the pipe with a specified tension and alignment and between said two sets of rollers to place one turn of such material on the pipe and wherein said supply means carries the sheet of material around the pipe to place a cigarette wrap thereon.
Claim 3
Dependent Claim
50 words
The apparatus of claim 1 including a brake means connected to said supply means to place tension in the sheet material on application as it is wrapped around the pipe, and wherein said supply means is positioned by said framework such that the sheet material wraps directly around the pipe.
Claim 4
Dependent Claim
43 words
The apparatus of claim 1 including a pivot mounting means supporting one of said rollers for pivotal movement out of the way on placing said framework on the pipe, and which pivotally moves said roller adjacent to the edge of the insulative material.
Claim 5
Dependent Claim
20 words
The apparatus of claim 3 including a lock means for locking said pivotally mounted edge located roller against the pipe.
Claim 6
Dependent Claim
129 words
The apparatus of claim 1 wherein said framework incorporates an arcuate member which encircles about 180° of the pipe, and further including a fourth roller in each of said two sets, and two of said rollers in each set are at end of said arcuate member, and the remaining two are at the other end of said arcuate member, and said rollers are spaced as follows using the first roller as a reference: said second roller is between the first and third rollers; said third roller is less than 180° around the pipe while the fourth roller is beyond the third and more than 180° from the first; and the first, second and third rollers are located on a common semicircle with said arcuate member relative to the pipe.
Claim 7
Dependent Claim
32 words
The apparatus of claim 5 including at least two spaced frame members extending along the pipe between first and second spacial arcuate members to join them together and define a rigid structure.
Claim 8
Dependent Claim
27 words
The apparatus of claim 6 including means for removing said arcuate members and substituting similar arcuate members sized to fit said rollers against pipes of differing diameters.
Claim 9
Dependent Claim
20 words
The apparatus of claim 7 including a first and second latch means for releasably locking said supply means in place.
Claim 10
Dependent Claim
25 words
The apparatus of claim 8 including parallel plates in a common plane with said arcuate members which each support said first and second latch means.
Claim 11
Independent Claim
165 words
An apparatus for placing a cigarette wrap of insulative material around a pipe at a bare place prior to placing the pipe in the ground, comprising: first, second and third rollers; a framework supporting said first, second and third rollers which positions said rollers in contact with a pipe to be coated, said rollers being spaced around the pipe to clamp said framework to the pipe and yet permitting the framework to rotate around the pipe one revolution which rotational movement is supported on said rollers; supply means carried by said framework for receiving and dispensing insulative material in sheet form onto the pipe to place one turn of such material on the pipe and wherein said supply means carries the sheet of material around the pipe to place a cigarette wrap thereon; and said rollers being edge located relative to said supply means so that the sheet insulative material is applied to the pipe adjacent to the locus of the rollers on the pipe.
Claim 12
Independent Claim
165 words
An apparatus for placing a cigarette wrap of insulative material around a pipe at a bare place prior to placing the pipe in the ground, comprising: first, second and third rollers; a framework supporting said first, second and third rollers which positions said rollers in contact with a pipe to be coated, said rollers being spaced around the pipe to clamp said framework to the pipe and yet permitting the framework to rotate around the pipe one revolution which rotational movement is supported on said rollers; supply means carried by said framework for receiving and dispensing insulative material in sheet form onto the pipe to place one turn of such material on the pipe and wherein said supply means carries the sheet of material around the pipe to place a cigarette wrap thereon; and said rollers being edge located relative to said supply means so that the sheet insulative material is applied to the pipe adjacent to the locus of the rollers on the pipe.
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) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |