US4646815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchange mat
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1984-12-17
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Granted: 1987-03-03
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Expires: 2004-12-17
Abstract
Abstract A heat exchange mat comprises at least a pair of mat members respectively including a heat exchange element and arranged side by side with their one side edges opposed, an elongated link member acting as a partition and linking between the opposed side edges of the mat members while allowing the interior of the respective members to communicate with each other at one longitudinal end of the link member, and means for supplying and discharging a heat exchange fluid to one of the mat members and out of the other member through supply and discharge tubes provided close to each other, the means being mounted to the mat at the other end of the link member, whereby substantially uniform thermal distribution overall the heat exchange mat is attained with remarkable improvement in the heat exchanging efficiency at its installing place.
Inventors
- 👤 Hideo Iwata
- 👤 Yoshiaki Kitagawa
- 👤 Jiro Koshijima
- 👤 Tetsuya Tachibana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:49
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/03; F28D1/0308; F24; F24D; F24D3/00; F24D3/12; F24D3/122; F24D3/125; F24D3/127; F28F; F28F3/00; F28F3/12; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
195 words
A floor heat exchange mat comprising at least a pair of flexible mat members, each mat member including top and bottom face sheets defining an interior space therebetween, a pair of inserts disposed within said interior space, and heat exchanger means disposed between said inserts, said heat exchanger means including wavy warp and linear weft filaments knitted substantially perpendicularly with each other for allowing a heat exchange fluid to flow through the interior space of said mat member, each mat member including a plurality of side edges, one of said side edges at which said weft filaments terminate being inherently upwardly biased relative to remaining portions of said mat member in response to being heated by the heat exchange fluid, said mat members arranged such that said upwardly biased edges lie side-by-side, and linking means extending along both said upwardly biased edges and joining such edges together, said linking means including upstanding wall means defining a fluid partition between the interiors of said mat members, and sealing means extending around, and sealing, the peripheral edges of said linked mat members, and conducting means for conducting the heat exchange fluid into and from said mat members.
Claim 2
Dependent Claim
195 words
A floor heat exchange mat comprising at least a pair of flexible mat members, each mat member including top and bottom face sheets defining an interior space therebetween, a pair of inserts disposed within said interior space, and heat exchanger means disposed between said inserts, said heat exchanger means including wavy warp and linear weft filaments knitted substantially perpendicularly with each other for allowing a heat exchange fluid to flow through the interior space of said mat member, each mat member including a plurality of side edges, one of said side edges at which said weft filaments terminate being inherently upwardly biased relative to remaining portions of said mat member in response to being heated by the heat exchange fluid, said mat members arranged such that said upwardly biased edges lie side-by-side, and linking means extending along both said upwardly biased edges and joining such edges together, said linking means including upstanding wall means defining a fluid partition between the interiors of said mat members, and sealing means extending around, and sealing, the peripheral edges of said linked mat members, and conducting means for conducting the heat exchange fluid into and from said mat members.
Claim 3
Dependent Claim
37 words
A heat exchange mat according to claim 1, wherein one end of said linking means terminates short of an end of said upwardly biased edges to permit fluid to flow between the interiors of said mat members.
Claim 4
Dependent Claim
59 words
A heat exchange mat according to claim 2, wherein said conducting means includes fluid supply means communicating with the interior of one of said mat members adjacent another end of said wall means opposite said one end thereof, and fluid discharge means communicating with the interior of the other mat member adjacent said other end of said wall means.
Claim 5
Dependent Claim
68 words
A heat exchange mat according to claim 1, wherein both ends of said linking means terminate short of respective ends of said upwardly biased edges, and a pair of joint members secured to the ends of said linking means for joining said mat members together and intercommunicating the interiors thereof, said conducting means including fluid supply means and fluid discharge means connected to one of said joint members.
Claim 6
Dependent Claim
32 words
A heat exchange mat according to claim 4, wherein said fluid supply means and fluid discharge means each comprises a tube projecting from said one joint member coplanar with said mat members.
Claim 7
Dependent Claim
44 words
A heat exchange mat according to claim 5, wherein said one joint member forms a fluid supply path communicating said fluid supply tube with one of said mat members, and a fluid discharge path communicating said fluid discharge tube with the other mat member.
Claim 8
Dependent Claim
23 words
A heat exchange mat according to claim 4, wherein the other joint member includes heat exchange means therein and is of triangular shape.
Claim 9
Dependent Claim
20 words
A heat exchange mat according to claim 4, wherein said linking means is an elongated member of H-shape in cross-section.
Claim 10
Dependent Claim
56 words
A heat exchange mat according to claim 4, wherein said linking means comprises a pair of elongated members of U-shape cross-section, each elongated member including a pair of parallel legs and a wall interconnecting said legs, said legs extending over and under the associated mat member, and the walls of said elongated members being secured together.
Claim 11
Dependent Claim
23 words
A heat exchange mat according to claim 1, wherein said linking means is arranged to resist relative rotational movement between said mat members.
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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) | 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 |