US4759382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of hot and immediate water for taps-water and energy saving
Assignee: Individual
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Filing: 1987-04-13
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Granted: 1988-07-26
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Expires: 2007-04-13
Abstract
Abstract The present invention consists in a distributing unit to be connected to a central hot water supply system, said unit comprising a housing consisting of two longitudinally extending pipes located one within the second, a number of primary pipes located in pre-determined distances and extending perpendicularly to said longitudinal pipes and terminating in the outer one; and secondary pipes extending within said primary pipes and terminating in the inner one of said longitudinal pipes. The invention also consists in a central hot water supply system which comprises such distributing unit.
Inventors
- 👤 Zeev Harel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:39
CPC Classifications
F; F24; F24D; F24D17/00; F24D17/0078; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/8593; Y10T137/85938; Y10T137/85954; Y10T137/85962
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
Hot water distribution means adapted to be connected as a part of a system for continuously supplying hot water to a plurality of outlet taps, the system being of the type having a supply pipe with continuously circulating hot water, including a supply port and a return port, the distribution means comprising first and second main pipes, said second main pipe being located within said first main pipe, means for connecting said first main pipe to the supply port, means for connecting said second main pipe to the returnport, a plurality of distribution pipes connecting different ones of the taps with said distribution means, each of said distribution pipes comprising first and second branch pipes, said second branch pipe being situated within said first branch pipe, means for connecting said first branch pipe between said first main pipe and one of said taps, said second branch pipe being shorter than said first branch pipe such that hot water continuously circulates from said first main pipe, along said first branch pipe, through said second branch pipe and into said second main pipe, when said one of said taps is closed.
Claim 2
Dependent Claim
189 words
Hot water distribution means adapted to be connected as a part of a system for continuously supplying hot water to a plurality of outlet taps, the system being of the type having a supply pipe with continuously circulating hot water, including a supply port and a return port, the distribution means comprising first and second main pipes, said second main pipe being located within said first main pipe, means for connecting said first main pipe to the supply port, means for connecting said second main pipe to the returnport, a plurality of distribution pipes connecting different ones of the taps with said distribution means, each of said distribution pipes comprising first and second branch pipes, said second branch pipe being situated within said first branch pipe, means for connecting said first branch pipe between said first main pipe and one of said taps, said second branch pipe being shorter than said first branch pipe such that hot water continuously circulates from said first main pipe, along said first branch pipe, through said second branch pipe and into said second main pipe, when said one of said taps is closed.
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) | 1991-07-26 | 1992-01-25 | 1992-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-26 | 1996-01-25 | 1996-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-26 | 2000-01-25 | 2000-07-26 | $7700.00 | Window Closed / Lapsed |