Patent USH239H successfully refreshed from Google Patents.
USH239H
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydronic heating system
Assignee: Dow Chemical Co
•
Filing: 1986-03-03
•
Granted: 1987-03-03
•
Expires: 2006-03-03
Abstract
Abstract A hydronic heating system that includes a tube or series of tubes placed on modular composite panels. The panels are fabricated with a grooved surface to permit the flush embedment of the tubes on the panels.
Inventors
- 👤 Kenneth Franklin
- 👤 John W. Hipple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:05
CPC Classifications
F; F24; F24D; F24D3/00; F24D3/12; F24D3/14; F24D3/141; F24D3/142; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
108 words
A hydronic system capable of use in horticulture that comprises: (a) a means for circulating fluid comprising at least one pipe; and (b) a modular composite panel comprising: (1) a first layer having a first major planar surface and a second major planar surface; (2) a second layer having a first major planar surface adhered to the first major planar surface of the first layer and a second major surface having a topography defining one or more grooves with a depth relatively equal to the external diameter of the pipe so that the second major surface of the second layer having the pipe laid thereon is relatively flat.
Claim 2
Dependent Claim
108 words
A hydronic system capable of use in horticulture that comprises: (a) a means for circulating fluid comprising at least one pipe; and (b) a modular composite panel comprising: (1) a first layer having a first major planar surface and a second major planar surface; (2) a second layer having a first major planar surface adhered to the first major planar surface of the first layer and a second major surface having a topography defining one or more grooves with a depth relatively equal to the external diameter of the pipe so that the second major surface of the second layer having the pipe laid thereon is relatively flat.
Claim 3
Dependent Claim
16 words
A hydronic system of claim 1, wherein the first layer is fabricated from expanded, cellular polystyrene.
Claim 4
Dependent Claim
17 words
A hydronic system of claim 1, wherein the first layer is at least about 1/2 inch thick.
Claim 5
Dependent Claim
16 words
A hydronic system of claim 1, wherein the second layer is fabricated from a latex-modified concrete.
Claim 6
Dependent Claim
27 words
A hydronic system of claim 1, wherein the total thickness of the second layer is at least about 1/8 inch greater than the depth of the grooves.
Claim 7
Dependent Claim
17 words
A hydronic system of claim 5, wherein the second layer is at least about 1/4 inch thick.
Claim 8
Dependent Claim
33 words
A hydronic system of claim 1, wherein the contoured surface of the second layer defines a plurality of parallel grooves, said contoured surface having at least one pipe positioned in serpentine position thereon.
Claim 9
Dependent Claim
25 words
A hydronic system of claim 1, wherein the groove has a width relatively equal to, but not less than, the external diameter of the pipe.
Claim 10
Dependent Claim
18 words
A hydronic system of claim 1, wherein the composite panel comprises a means of attachment with similar panels.
References Cited (Backward Citations)
US2066656A
Cited
DE2850669A1
Cited
DE2840686A1
Cited
DE2911579A1
Cited
US4338994A
Cited
US4309843A
Cited
GB2095814B
Cited
US4577435A
Cited
US4508162A
Cited
US4588125A
Cited
EP0133631A1
Cited
NL8501056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |