US3818949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable insulated pipe jacket
Assignee: Transco Inc
•
Filing: 1973-02-05
•
Granted: 1974-06-25
•
Expires: 1993-02-05
Abstract
Abstract A prefabricated insulated pipe jacket comprising two interlocking semicircular sections, with each section consisting of a stainless steel exterior overlay cover, an inner body of insulation and an interior protective sheet, the overlay cover and interior protective sheet being secured together to either side of the insulation by a series of spaced retaining members carried by a connector strip providing a semi-closure for the insulation while maintaining a minimum heat transfer attachment between the cover and inner protective sheet.
Inventors
- 👤 L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:57
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/021; F16L59/024
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
201 words
A prefabricated removable insulated pipe jacket consisting of two mating semicircular longitudinal sections with each section comprising a. a semicircular outer metallic cover, b. a batt of insulation material conforming to the configuration of said cover and of a size less than said cover and positioned on the inner suRface thereof exposing one end and edge of said cover, c. an interior protective sheet over the entire inner surface of said batt of insulation, d. an elongated connector strip providing spaced flange members extending at right angles therefrom with said flanges being equal in length to the thickness of said batt of insulation, e. means provided by said first-mentioned means for connecting said cover to said interior protective sheet to either side of said batt of insulation while providing a minimum of heat transfer contact between said cover and said interior sheet, f. said flange members providing tabs at the free ends thereof adapted to be connected to a confronting surface of said protective sheet when said connector strip is connected to a confronting surface of said cover, g. and means for releasably securing the exposed longitudinal edge of two mating sections together to form a circular jacket for the pipe.
Claim 2
Dependent Claim
201 words
A prefabricated removable insulated pipe jacket consisting of two mating semicircular longitudinal sections with each section comprising a. a semicircular outer metallic cover, b. a batt of insulation material conforming to the configuration of said cover and of a size less than said cover and positioned on the inner suRface thereof exposing one end and edge of said cover, c. an interior protective sheet over the entire inner surface of said batt of insulation, d. an elongated connector strip providing spaced flange members extending at right angles therefrom with said flanges being equal in length to the thickness of said batt of insulation, e. means provided by said first-mentioned means for connecting said cover to said interior protective sheet to either side of said batt of insulation while providing a minimum of heat transfer contact between said cover and said interior sheet, f. said flange members providing tabs at the free ends thereof adapted to be connected to a confronting surface of said protective sheet when said connector strip is connected to a confronting surface of said cover, g. and means for releasably securing the exposed longitudinal edge of two mating sections together to form a circular jacket for the pipe.
Claim 3
Dependent Claim
67 words
A prefabricated removable insulated pipe jacket as defined by claim 1 wherein said means for releasably securing the sections together to form a circular jacket comprise spring latch members carried adjacent the exposed longitudinal edge of said cover, with said latch member cooperating with a latch plate carried adjacent an underlying edge portion of a juxtapositioned mating section for securing the same together into said circular jacket.
Claim 4
Dependent Claim
40 words
A prefabricated removable insulated pipe jacket as defined by claim 1 further including a heat-resistant foil covering all of the edges of said insulating batt as well as said means embracing said edges so as to encapsulate said insulating batt.
References Cited (Backward Citations)
US230059A
Cited
US347631A
Cited
US1734209A
Cited
US2160009A
Cited
US2707493A
Cited
US2777786A
Cited
US2841203A
Cited
US2861598A
Cited
US3004433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |