US4066122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-layer radiator of plastic material and process for its manufacture
Assignee: Hoechst AG
•
Filing: 1975-06-18
•
Granted: 1978-01-03
•
Expires: 1995-06-18
Abstract
Abstract Multi-layer radiator of plastic material consisting of planar elements comprising an array of vertical water pipes horizontal collecting channels, wherein the planar elements are first connected by straps fastened in the readily accessible border zones of the elements to form units which are then welded together at their end-faces. The radiator can be produced with a few operating steps and the manufacturing costs are considerably reduced.
Inventors
- 👤 Erwin Gross
- 👤 Hans Vowinkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:36
CPC Classifications
F; F28; F28F; F28F21/00; F28F21/06; F28F21/065; F28F21/066; F28F21/062; F28F21/063; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/471; Y10S165/905; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
62 words
A multi-layer radiator of plastic material consisting essentially of planar elements formed of vertical substantially parallel water pipes and a pair of spaced horizontal headers to which the ends of said pipes are connected, said elements being connected to one another by straps at points spaced from said headers to form multi-layer units, the units being firmly joined to one another endwise.
Claim 2
Dependent Claim
62 words
A multi-layer radiator of plastic material consisting essentially of planar elements formed of vertical substantially parallel water pipes and a pair of spaced horizontal headers to which the ends of said pipes are connected, said elements being connected to one another by straps at points spaced from said headers to form multi-layer units, the units being firmly joined to one another endwise.
Claim 3
Dependent Claim
73 words
A multi-layer radiator of plastic material consisting essentially of planar elements formed of vertical substantially parallel water pipes interconnected by webs of plastic material substantially co-extensive with said pipes and a pair of spaced horizontal headers to which the ends of said pipes are connected, said elements being connected to one another by straps at points spaced from said headers to form multi-layer units, the units being firmly joined to one another endwise.
Claim 4
Dependent Claim
73 words
A multi-layer radiator of plastic material consisting essentially of planar elements formed of vertical substantially parallel water pipes interconnected by webs of plastic material substantially co-extensive with said pipes and a pair of spaced horizontal headers to which the ends of said pipes are connected, said elements being connected to one another by straps at points spaced from said headers to form multi-layer units, the units being firmly joined to one another endwise.
Claim 5
Dependent Claim
119 words
A process for the manufacture of a multi-layer radiator which comprises forming a plurality of elements each comprising a pair of spaced collecting channels connected to the ends of a series of parallel water pipes, said pipes being laterally connected by webs of plastic substantially co-extensive therewith, assembling said elements in parallel into units by securing the outermost pipes in one element to corresponding outermost pipes of another element by straps at points spaced from said collecting channels and assembling said units into said multi-layer radiator by welding the end surfaces of adjacent units to one another, the straps being secured to the pipes by welding at the same time that the surfaces of adjacent units are welded together.
Claim 6
Dependent Claim
119 words
A process for the manufacture of a multi-layer radiator which comprises forming a plurality of elements each comprising a pair of spaced collecting channels connected to the ends of a series of parallel water pipes, said pipes being laterally connected by webs of plastic substantially co-extensive therewith, assembling said elements in parallel into units by securing the outermost pipes in one element to corresponding outermost pipes of another element by straps at points spaced from said collecting channels and assembling said units into said multi-layer radiator by welding the end surfaces of adjacent units to one another, the straps being secured to the pipes by welding at the same time that the surfaces of adjacent units are welded together.
Claim 7
Dependent Claim
72 words
A process for making a multi-layer radiator of plastic material wherein each layer consists essentially of individual planar elements formed of vertical substantially parallel water pipes and a pair of spaced horizontal headers to which the ends of said pipes are connected, which comprises connecting said individual elements to one another by straps at points spaced from said headers to form multi-layer units and welding the units thus obtained to one another.
Claim 8
Dependent Claim
72 words
A process for making a multi-layer radiator of plastic material wherein each layer consists essentially of individual planar elements formed of vertical substantially parallel water pipes and a pair of spaced horizontal headers to which the ends of said pipes are connected, which comprises connecting said individual elements to one another by straps at points spaced from said headers to form multi-layer units and welding the units thus obtained to one another.
Claim 9
Dependent Claim
25 words
The process of claim 3, wherein the straps are fastened to the elements in the readily accessibly end portions of the individual elements by welding.
Claim 10
Dependent Claim
57 words
The process of claim 3, wherein the straps are fastened on the individual elements by means of clamps, the ends of the straps are in contact with the walls of vertical pipes of adjacent elements, and the strap ends are welded to the pipe walls simultaneously with the welding of the end surfaces of the multi-layer units.
Claim 11
Dependent Claim
24 words
The process of claim 3, wherein the straps are inserted into recesses in the walls of the outermost vertical water pipes of adjacent units.
Claim 12
Dependent Claim
33 words
The process of claim 7, wherein the portions of the straps protruding into the recesses in the vertical water pipes are welded simultaneously with the welding of the end surfaces of adjacent units.
References Cited (Backward Citations)
US3396785A
Cited
US3392779A
Cited
GB1235697A
Cited
US3669185A
Cited
US3841938A
Cited
US3750744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |