US4076076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical heat exchange joint
Assignee: Halm Instrument Co Inc
•
Filing: 1976-07-12
•
Granted: 1978-02-28
•
Expires: 1996-07-12
Abstract
Abstract A heat-conducting joint suitable for solar heat collectors. A tubular metal member carries heat-transfer fluid. A sheet metal member is in thermal contact with said tubular member and one of the members is pre-curved in a plane perpendicular to the surface of the sheet into a wave shape substantially consisting of a plurality of long radius arches joined by short radius cusps. Means are provided for first securing the other member while straight to the one member near its ends in a manner to prevent sliding of the other member on the one member. Means are provided for then securing said other member against the one member at the short radius cusps, whereby the two members are pressed together elastically along at least one line of contact for efficient heat conduction between them.
Inventors
- 👤 Henry Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:13
CPC Classifications
F; F24; F24S; F24S10/00; F24S10/70; F24S10/75; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49355
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
151 words
A heat-conducting joint suitable for solar heat collectors comprising, a tubular metal member for carrying heat-transfer fluid, a sheet metal member in thermal contact with said tubular member, one of said members being pre-curved in a plane perpendicular to the surface of the sheet into a wave shape substantially consisting of a pluality of long radius arches joined by short radius cusps, and means for first securing the other member while straight to the one member near its ends and while perpendicular to the long radius arches of the wave shape in a manner to prevent sliding of the other member on the one member, and means for then securing said other member against said one member at said short radius cusps forming a wave shape in said other member, whereby the two members are pressed together elastically along at least one line of contact for efficient heat conduction between them.
Claim 2
Dependent Claim
151 words
A heat-conducting joint suitable for solar heat collectors comprising, a tubular metal member for carrying heat-transfer fluid, a sheet metal member in thermal contact with said tubular member, one of said members being pre-curved in a plane perpendicular to the surface of the sheet into a wave shape substantially consisting of a pluality of long radius arches joined by short radius cusps, and means for first securing the other member while straight to the one member near its ends and while perpendicular to the long radius arches of the wave shape in a manner to prevent sliding of the other member on the one member, and means for then securing said other member against said one member at said short radius cusps forming a wave shape in said other member, whereby the two members are pressed together elastically along at least one line of contact for efficient heat conduction between them.
Claim 3
Dependent Claim
27 words
A heat conducting joint according to claim 1, in which said one member is said sheet metal member and said other member is said tubular metal member.
Claim 4
Dependent Claim
31 words
A heat-conducting joint according to claim 1, in which said sheet metal member is preformed with a longitudinal groove which makes contact with said tubular member along two lines of contact.
Claim 5
Dependent Claim
32 words
A heat-conducting joint according to claim 1, in which said means for securing said tubular metal member to said sheet metal member in a manner to prevent sliding is by fused metal.
Claim 6
Dependent Claim
29 words
A heat-conducting joint according to claim 1, in which said means for securing said tubular metal member to said sheet metal member at said cusps is by mechanical fasteners.
Claim 7
Dependent Claim
44 words
A heat-conducting joint according to claim 1, in which said sheet metal member is preformed with a longitudinal groove which places the center of said tubular metal member substantially at the center of said sheet metal member when the two members are assembled together.
Claim 8
Dependent Claim
24 words
A heat-conducting joint according to claim 6, in which said sheet metal member and said tubular metal member have dissimilar coefficients of thermal expansion.
References Cited (Backward Citations)
US2734259A
Cited
US2049117A
Cited
DE851203C
Cited
US2441463A
Cited
US2469963A
Cited
US2509011A
Cited
US2856163A
Cited
US3120869A
Cited
US3224503A
Cited
US3407874A
Cited
US3818568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |