Patent US3922008A successfully refreshed from Google Patents.
US3922008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid cooled meter riser
Assignee: East 74Th Street Holdings Inc
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Filing: 1974-08-26
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Granted: 1975-11-25
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Expires: 1994-08-26
Abstract
Abstract A meter riser for connecting normally buried plastic pipe to metallic couplings which are normally disposed above the ground for connection with utility meters, such as gas meters and the like, and comprising means for connecting the plastic pipe directly to the metallic couplings, said plastic pipe being encased in a metallic sheath, heat sink means surrounding at least a portion of the metallic sheath and plastic pipe to the metallic coupling, and liquid cooling insulating means surrounding at least a portion of the heat sink means and connecting means for protecting the plastic pipe against excessively high temperatures.
Inventors
- 👤 Roy E Stiner
- 👤 John David Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:35
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/005; F16L53/00; F16L53/70
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
A liquid cooled meter riser comprising a substantially Lshaped metallic sheath member, plastic pipe means conCentrically disposed within said sheath member and extending longitudinally therethrough for connection between a buried plastic pipe and a metallic meter coupling, means cooperating with the sheath member and plastic pipe means therein for connection of said plastic pipe means with said meter coupling, heat sink means secured around at least a portion of the sheath and plastic pipe means therein in the proximity of the connection thereof with the meter coupling, and liquid cooled insulator means disposed around at least a portion of the heat sink means for protection thereof from the environment therearound.
Claim 2
Dependent Claim
110 words
A liquid cooled meter riser comprising a substantially Lshaped metallic sheath member, plastic pipe means conCentrically disposed within said sheath member and extending longitudinally therethrough for connection between a buried plastic pipe and a metallic meter coupling, means cooperating with the sheath member and plastic pipe means therein for connection of said plastic pipe means with said meter coupling, heat sink means secured around at least a portion of the sheath and plastic pipe means therein in the proximity of the connection thereof with the meter coupling, and liquid cooled insulator means disposed around at least a portion of the heat sink means for protection thereof from the environment therearound.
Claim 3
Dependent Claim
30 words
A liquid cooled meter riser as set forth in claim 1 wherein the heat sink means comprises a copper sleeve secured around said sheath and concentrically arranged with respect thereto.
Claim 4
Dependent Claim
91 words
A liquid cooled meter riser as set forth in claim 1 wherein the liquid cooled insulator means comprises a pair of concentrically arranged tube members concentrically secured around a portion of the heat sink, capillary means disposed in the annulus between the said tube members, and liquid coolant reservoir means disposed in the annulus between the heat sink and the innermost of said tube members, said capillary means having one end open to said coolant for passing the coolant longitudinally therethrough by capillary action and recycling the coolant to the reservoir.
Claim 5
Dependent Claim
35 words
A liquid cooled meter riser as set forth in claim 3 and including sealing means interposed between the concentrically arranged tube members and the heat sink and meter coupling for precluding leakage of fluid therebetween.
Claim 6
Dependent Claim
111 words
A liquid cooled meter riser as set forth in claim 1 wherein the connection means comprises sleeve means for receiving one end of the plastic pipe means therein, threaded sleeve means secured to one end of the sheath and having an inwardly directed annular flange for receiving one end of the first sleeve means thereagainst, insulation means interposed between the first sleeve means and the threaded sleeve means, and compression nut means cooperating between the first sleeve means and threaded sleeve means for securing the first sleeve means to the threaded sleeve means, said first sleeve means being adapted for connection with the meter for securing the plastic pipe means thereto.
Claim 7
Dependent Claim
34 words
A liquid cooled meter riser as set forth in claim 6 and including stiffening means disposed within said one end of the plastic pipe means for facilitating securing thereof within said first sleeve 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) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |