Patent US4170451A successfully refreshed from Google Patents.
US4170451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skid pipe covering
Assignee: API TECHNOLOGIES Inc A CORP OF
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Filing: 1976-10-14
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Granted: 1979-10-09
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Expires: 1996-10-14
Abstract
Abstract An arrangement by which a jacket of preformed insulating material is readily installed around the outer surface of a water cooled pipe that is to be used as a structural support or a skid rail for a heat treating furnace.
Inventors
- 👤 Donald G. Luff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:54
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/02; F27D3/022
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
An insulating jacket enclosing a water-cooled pipe, said jacket comprising arcuate segments of pre-cast insulating material formed to include an aperture extending radially therethrough, an elongate metallic band held concentrically adjacent said pipe, an elongate projection having the inner end thereof attached to said metallic band and the outer end thereof adapted to extend radially outward through an aperture in a segment of said jacket, and means clasping the outer end of said projection to anchor the arcuate segments of insulating material between ends thereof whereby said jacket is held firmly to said pipe.
Claim 2
Dependent Claim
94 words
An insulating jacket enclosing a water-cooled pipe, said jacket comprising arcuate segments of pre-cast insulating material formed to include an aperture extending radially therethrough, an elongate metallic band held concentrically adjacent said pipe, an elongate projection having the inner end thereof attached to said metallic band and the outer end thereof adapted to extend radially outward through an aperture in a segment of said jacket, and means clasping the outer end of said projection to anchor the arcuate segments of insulating material between ends thereof whereby said jacket is held firmly to said pipe.
Claim 3
Dependent Claim
35 words
An insulating jacket according to claim 1 in which the means holding the metallic band to the pipe comprises slotted ends thereof that interlock with one another to form a continuous band around the pipe.
Claim 4
Dependent Claim
22 words
An insulating jacket according to claim 1 in which the radially disposed aperture therein is at the approximate center of each section.
Claim 5
Dependent Claim
47 words
An insulating jacket according to claim 1 in which each radially disposed opening is partially counter-bored to a larger diameter to produce a shoulder on each insulating segment, and means seated upon said shoulder adapted to draw the segment of insulative material closely adjacent the pipe section.
Claim 6
Dependent Claim
31 words
An insulating jacket according to claim 4 including a plug of insulative material adapted to fill the counter-bored section of each radially disposed opening to preclude the flow of heat therethrough.
Claim 7
Dependent Claim
56 words
An insulating jacket for a water cooled pipe as defined in claim 1 including a skid rail bonded longitudinally to the upper surface of said pipe, said metallic band having opposite ends thereof fixed to said pipe adjacent sides of the longitudinal skid rail thereby holding said band around the pipe independent from the longitudinal skid.
Claim 8
Dependent Claim
41 words
An insulating jacket for a water cooled pipe as defined in claim 6 wherein the radial projection are slidably attached and longitudinally moveable along the elongate metallic band to permit independent alignment thereof with a radial aperture through the insulation jacket.
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) | 1982-10-08 | 1983-04-09 | 1983-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-08 | 1987-04-09 | 1987-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-08 | 1991-04-09 | 1991-10-09 | $7700.00 | Window Closed / Lapsed |