US3916503A
Expired / Lapsed
US
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Method of making thermal barrier lineal metal shapes
Assignee: Ethyl Corp
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Filing: 1974-01-02
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Granted: 1975-11-04
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Expires: 1994-01-02
Abstract
Abstract A method of making a thermal barrier lineal metal shape wherein metal lineal shapes are extruded or otherwise formed to accept an insulating barrier previously formed in such a shape as to fit the metal lineal shapes. The insulating barrier is joined with the metal shapes by mechanical means to form a composite singlepiece thermal break construction shape. Dimensional tolerances are essential.
Inventors
- 👤 Edward L Chenevert
- 👤 Joseph N Laborde
- 👤 Robert E Waltman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:11
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; B23P19/047; E; E06; E06B; E06B3/00; E06B3/04; E06B3/263; E06B3/26301; E06B3/26305; E06B2003/26309; E06B2003/26314; E06B2003/26349; E06B2003/26369; E06B2003/26376; Y; Y10; Y10S; Y10S49/00; Y10S49/01; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49908; Y10T29/49915
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
227 words
A method of forming a thermal barrier lineal metal construction shape comprising the steps of: a. aligning a pair of lineal metal shapes adjacent each other in generally parallel spaced apart relation, each of said metal shapes having a top surface, bottom surface and vertical wall surface, and each of said metal shapes having a channel therein of a predetermined size adapted to receive a lineal insulating shape and one of said channels facing the other of said channels; b. aligning adjacent to said channels of said metal shapes and therebetween said channels, a lineal insulating shape adapted to be received by said channels, said insulating shape having a top surface, bottom surface and vertical side wall surfaces, and said insulating shape being of a predetermined size so related to the size of said channels that an interference fit is obtained when said insulating shape is inserted in said channels and, c. applying mechanical forces to move said channels of said metal shapes towards each other to thereby bring together the metal shapes and the insulating shape to form an interference fit between said metal shapes and said insulating shape, said interference fit occurring between the top surface and bottom surface of said lineal metal shapes and the top surface and bottom surface of said lineal insulating shape, thereby forming a unitary lineal thermal barrier construction shape.
Claim 2
Independent Claim
227 words
A method of forming a thermal barrier lineal metal construction shape comprising the steps of: a. aligning a pair of lineal metal shapes adjacent each other in generally parallel spaced apart relation, each of said metal shapes having a top surface, bottom surface and vertical wall surface, and each of said metal shapes having a channel therein of a predetermined size adapted to receive a lineal insulating shape and one of said channels facing the other of said channels; b. aligning adjacent to said channels of said metal shapes and therebetween said channels, a lineal insulating shape adapted to be received by said channels, said insulating shape having a top surface, bottom surface and vertical side wall surfaces, and said insulating shape being of a predetermined size so related to the size of said channels that an interference fit is obtained when said insulating shape is inserted in said channels and, c. applying mechanical forces to move said channels of said metal shapes towards each other to thereby bring together the metal shapes and the insulating shape to form an interference fit between said metal shapes and said insulating shape, said interference fit occurring between the top surface and bottom surface of said lineal metal shapes and the top surface and bottom surface of said lineal insulating shape, thereby forming a unitary lineal thermal barrier construction shape.
Claim 3
Dependent Claim
27 words
The method of claim 1, wherein the channels for receiving the insulating shape have a plurality of projections integrally formed therein for protrusion into the insulating shape.
Claim 4
Dependent Claim
37 words
The method of claim 2, wherein the interference fit is produced by constructing the metal and insulating shapes in accordance with the formula T t + 0.34t, wherein T total insulating shape thickness and t channel opening.
Claim 5
Dependent Claim
17 words
The method of claim 1, wherein the channels for receiving the insulating shape have substantially smooth surfaces.
Claim 6
Dependent Claim
37 words
The method of claim 4, wherein the interference fit is produced by constructing the metal and insulating shapes in accordance with the formula T t + 0.117t, wherein T total insulating shape thickness and t channel opening.
Claim 7
Dependent Claim
27 words
The method of claim 1, wherein the channel of each lineal metal shape is formed by a pair of longitudinally extending legs joined together by a web.
Claim 8
Dependent Claim
23 words
The method of claim 6, wherein the legs forming the channel are tapered inwardly toward each other from the web joining them together.
Claim 9
Dependent Claim
26 words
The method of claim 6, wherein the legs forming the channel are substantially parallel to each other and have an internal projection on each end thereof.
Claim 10
Dependent Claim
28 words
The method of claim 1, wherein the lineal insulating shape has tapered and rounded edges thereon for facilitating the joining of the insulating shape with the metal shapes.
Claim 11
Dependent Claim
33 words
The method of claim 6, wherein the legs forming the channel are substantially parallel to each other and each has an end member extending outwardly therefrom at substantially right angles or perpendicularly thereto.
Claim 12
Independent Claim
246 words
A method of forming a thermal barrier lineal metal construction shape consisting of the steps of: a. aligning a pair of lineal metal shapes adjacent each other in generally parallel spaced apart relation, each of said metal shapes having a top surface, bottom surface and vertical wall surface, and each of said metal shapes having a channel therein of a predetermined size adapted to receive a lineal insulating shape, each of said channels having a plurality of projections integrally formed therein for protrusion into the insulating shape, and one of said channels facing the other of said channels; b. aligning adjacent to said channels of said metal shapes and therebetween said channels, a lineal insulating shape adapted to be received by said channels, said insulating shape having a top surface, bottom surface and vertical side wall surfaces, and said insulating shape being of a predetermined size so related to the size of said channels that an interference fit is obtained when said insulating shape is inserted in said channels; and c. applying mechanical forces to move said channels of said metal shapes towards each other to thereby bring together the metal shapes and the insulating shape to form an interference fit between said metal shapes and said insulating shape, said interference Fit occurring between the top surface and bottom surface of said lineal metal shapes and the top surface and bottom surface of said lineal insulating shape, thereby forming a unitary lineal thermal barrier construction shape.
Claim 13
Independent Claim
246 words
A method of forming a thermal barrier lineal metal construction shape consisting of the steps of: a. aligning a pair of lineal metal shapes adjacent each other in generally parallel spaced apart relation, each of said metal shapes having a top surface, bottom surface and vertical wall surface, and each of said metal shapes having a channel therein of a predetermined size adapted to receive a lineal insulating shape, each of said channels having a plurality of projections integrally formed therein for protrusion into the insulating shape, and one of said channels facing the other of said channels; b. aligning adjacent to said channels of said metal shapes and therebetween said channels, a lineal insulating shape adapted to be received by said channels, said insulating shape having a top surface, bottom surface and vertical side wall surfaces, and said insulating shape being of a predetermined size so related to the size of said channels that an interference fit is obtained when said insulating shape is inserted in said channels; and c. applying mechanical forces to move said channels of said metal shapes towards each other to thereby bring together the metal shapes and the insulating shape to form an interference fit between said metal shapes and said insulating shape, said interference Fit occurring between the top surface and bottom surface of said lineal metal shapes and the top surface and bottom surface of said lineal insulating shape, thereby forming a unitary lineal thermal barrier construction shape.
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) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |