US3815216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a thermal break construction element
Assignee: William L Bonnell Co Inc
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Filing: 1972-10-12
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Granted: 1974-06-11
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Expires: 1992-10-12
Abstract
Abstract A method of manufacturing a combination metal and plastic linear construction element or shape, wherein in a continuous operation, a metal extrusion is made containing a removable section, the removable section is removed while the remainder of the extrusion is held in place substantially as originally extruded, and a plastic thermal break is extruded and inserted in the metal extrusion, thereby forming a unitary or integral linear shape comprising two metal members and a plastic member, with the plastic member retaining the metal members in spaced apart relationship and forming an insulating barrier or thermal break between the metal elements.
Inventors
- 👤 W Brockway
- 👤 E Craven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:41
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/263; E06B3/267; B; B21; B21D; B21D47/00; B21D47/04; Y; Y10; Y10S; Y10S29/00; Y10S29/029; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49888; Y10T29/4998
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
123 words
A method of making a thermal break linear construction element, comprising the steps of: 1. introducing an extruded metal member having a readily removable interior section therein into a means for removing said interior section; 2. removing said interior section from said extruded metal member and forming separate spaced apart metal members while maintaining said separate spaced apart metal members in substantially the same relationship they had prior to being separated; 3. introducing the spaced apart metal members into a means for inserting a plastic material therebetween; and, 4. inserting the plastic material between the spaced apart metal members thereby joining the metal members together to form a unitary thermal break linear construction element comprising metal members separated by a plastic insulating barrier.
Claim 2
Independent Claim
123 words
A method of making a thermal break linear construction element, comprising the steps of: 1. introducing an extruded metal member having a readily removable interior section therein into a means for removing said interior section; 2. removing said interior section from said extruded metal member and forming separate spaced apart metal members while maintaining said separate spaced apart metal members in substantially the same relationship they had prior to being separated; 3. introducing the spaced apart metal members into a means for inserting a plastic material therebetween; and, 4. inserting the plastic material between the spaced apart metal members thereby joining the metal members together to form a unitary thermal break linear construction element comprising metal members separated by a plastic insulating barrier.
Claim 3
Dependent Claim
35 words
removing said interior section from said extruded metal member and forming separate spaced apart metal members while maintaining said separate spaced apart metal members in substantially the same relationship they had prior to being separated;
Claim 4
Dependent Claim
35 words
removing said interior section from said extruded metal member and forming separate spaced apart metal members while maintaining said separate spaced apart metal members in substantially the same relationship they had prior to being separated;
Claim 5
Dependent Claim
17 words
The method of claim 1, wherein each of the steps is carried out in a continuous operation.
Claim 6
Dependent Claim
37 words
The method of claim 1, wherein drive means are provided for engaging the removable section of the extruded metal member prior to said section being removed and for moving the metal members through the successive operating steps.
Claim 7
Dependent Claim
16 words
introducing the spaced apart metal members into a means for inserting a plastic material therebetween; and,
Claim 8
Dependent Claim
16 words
introducing the spaced apart metal members into a means for inserting a plastic material therebetween; and,
Claim 9
Dependent Claim
34 words
inserting the plastic material between the spaced apart metal members thereby joining the metal members together to form a unitary thermal break linear construction element comprising metal members separated by a plastic insulating barrier.
Claim 10
Dependent Claim
34 words
inserting the plastic material between the spaced apart metal members thereby joining the metal members together to form a unitary thermal break linear construction element comprising metal members separated by a plastic insulating barrier.
Claim 11
Dependent Claim
39 words
The method of claim 1, wherein the metal extrusion member is so formed that upon removal of the removable section each of the separated metal members has internal projections thereon which are adapted to receive the plastic material therearound.
Claim 12
Dependent Claim
25 words
The method of claim 1, wherein cooling means are provided for cooling the plastic material after it has been inserted between the separated metal 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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |