US2778759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal pipe insulation
Assignee: Gustin Bacon Manufacturing Co
•
Filing: 1952-11-05
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Granted: 1957-01-22
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Expires: 1972-11-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Stephens
- 👤 Glenn W Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:14
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/021; F16L59/022; B; B29; B29C; B29C67/00; B29C67/24; B29C67/248; C; C04; C04B; C04B30/00; C04B30/02; B29K; B29K2709/00; B29K2709/08; B29K2995/00; B29K2995/0012; B29K2995/0015; B29L; B29L2023/00; B29L2023/22; B29L2023/225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A SINGLE PIECE, PREFORMED, RESILIENT, THERMAL PIPE INSULATION FORMED OF GLASS FIBERS HAVING AN AVERAGE DIAMETER OF LESS THAN TEN MICRONS BONDED WITH A BINDER IN AN AMOUNT BETWEEN FIFTEEN PERCENT AND THIRTY-FIVE PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE THERMAL INSULATION AND HAVING A DENSITY BETWEEN TWO POUNDS AND FIVE POUNDS PER CUBIC FOOT. SAID INSULATION BEING FORMED GENERALLY IN THE SHAPE OF A HOLLOW CYLINDER HAVING AN AXIALLY EXTENDING SLIT, SAID THERMAL PILE INSULATION BEING ADAPTED TO SPRING BACK TO SUBSTANTIALLY ITS PREFORMED SHAPE WHEN RELEASED AFTER BEING DEFLECTED ALONG THE AXIALLY EXTENDING SLIT.
Claim 2
Dependent Claim
98 words
A SINGLE PIECE, PREFORMED, RESILIENT, THERMAL PIPE INSULATION FORMED OF GLASS FIBERS HAVING AN AVERAGE DIAMETER OF LESS THAN TEN MICRONS BONDED WITH A BINDER IN AN AMOUNT BETWEEN FIFTEEN PERCENT AND THIRTY-FIVE PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE THERMAL INSULATION AND HAVING A DENSITY BETWEEN TWO POUNDS AND FIVE POUNDS PER CUBIC FOOT. SAID INSULATION BEING FORMED GENERALLY IN THE SHAPE OF A HOLLOW CYLINDER HAVING AN AXIALLY EXTENDING SLIT, SAID THERMAL PILE INSULATION BEING ADAPTED TO SPRING BACK TO SUBSTANTIALLY ITS PREFORMED SHAPE WHEN RELEASED AFTER BEING DEFLECTED ALONG THE AXIALLY EXTENDING SLIT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |