US3798869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of snap fitting channel members and foaming in place an interlock therebetween
Assignee: Individual
•
Filing: 1971-02-22
•
Granted: 1974-03-26
•
Expires: 1991-02-22
Abstract
Abstract The present method produces a structural unit, for instance a window frame, comprising heat conducting structural members and rigid connecting means therebetween, by clamping a hollow, resilient connecting element between said structural members and then filling the hollow resilient element with a hardenable mass which by its hardening eliminates the resiliency and thus provides said rigid connecting means. The connecting element may be of substantially H-shaped or rectangular cross section with means for engaging the structural members. The resiliency may be the natural resiliency of the material of which the connecting element is made.
Inventors
- 👤 E Nipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:42
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/263; E06B3/26341; E06B3/267; E06B3/2675; E06B2003/26349; E06B2003/2635; E06B2003/26352; E06B2003/26354; E06B2003/26361; E06B3/26301; E06B3/26305; E06B3/26307; Y; Y10; Y10S; Y10S49/00; Y10S49/01; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876; Y10T29/49888
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
176 words
In a method for producing a rigid structural unit including first heat conducting structural means having first connecting elements, second heat conducting structural means having second connecting elements, and a heat insulating connecting member providing a heat barrier between said first and second structural means and having further connecting elements engAged with respective ones of said first and second connecting elements of said first and second structural means to confine a hollow space therebetween which is then filled with a hardenable mass, the improvement comprising: a. producing at least certain ones of said connecting elements as elastically yielding snap-in elements having a natural resiliency providing initially an elastically yielding biasing force; b. elastically snapping said snap-in elements into engagement, whereby said hollow space is confined between the structural means and the connecting member; c. filling said hollow space with said hardenable mass, and d. foaming and hardening said mass, said foaming and hardening eliminating said elastically yielding biasing force to form a rigid connection between the first and second structural means while maintaining said heat barrier.
Claim 2
Dependent Claim
176 words
In a method for producing a rigid structural unit including first heat conducting structural means having first connecting elements, second heat conducting structural means having second connecting elements, and a heat insulating connecting member providing a heat barrier between said first and second structural means and having further connecting elements engAged with respective ones of said first and second connecting elements of said first and second structural means to confine a hollow space therebetween which is then filled with a hardenable mass, the improvement comprising: a. producing at least certain ones of said connecting elements as elastically yielding snap-in elements having a natural resiliency providing initially an elastically yielding biasing force; b. elastically snapping said snap-in elements into engagement, whereby said hollow space is confined between the structural means and the connecting member; c. filling said hollow space with said hardenable mass, and d. foaming and hardening said mass, said foaming and hardening eliminating said elastically yielding biasing force to form a rigid connection between the first and second structural means while maintaining said heat barrier.
Claim 3
Dependent Claim
151 words
In a method for producing a rigid structural unit including heat conducting structural means and heat insulating structural means, wherein both of said structural means include connecting elements for interengaging said structural means with each other to confine a hollow space therebetween which is then filled with a hardenable mass which together with said heat insulating structural means provide a heat barrier, the improvement comprising: a. producing at least certain ones of said connecting elements as elastically yielding snap-in elements having a natural resiliency to provide initially an elastically yielding biasing force, b. elastically snapping said snap-in elements into engagement whereby said hollow space is confined between the structural means; c. filling said hollow space with said hardenable mass, and d. foaming and hardening said mass, said foaming and hardening eliminating said elastically yielding biasing force to form a rigid connection between the two structural means while maintaining said heat barrier.
Claim 4
Dependent Claim
151 words
In a method for producing a rigid structural unit including heat conducting structural means and heat insulating structural means, wherein both of said structural means include connecting elements for interengaging said structural means with each other to confine a hollow space therebetween which is then filled with a hardenable mass which together with said heat insulating structural means provide a heat barrier, the improvement comprising: a. producing at least certain ones of said connecting elements as elastically yielding snap-in elements having a natural resiliency to provide initially an elastically yielding biasing force, b. elastically snapping said snap-in elements into engagement whereby said hollow space is confined between the structural means; c. filling said hollow space with said hardenable mass, and d. foaming and hardening said mass, said foaming and hardening eliminating said elastically yielding biasing force to form a rigid connection between the two structural means while maintaining said heat barrier.
References Cited (Backward Citations)
CH356265A
Cited
US3014611A
Cited
US3156332A
Cited
DE1509548A1
Cited
NL6514536A
Cited
US3451183A
Cited
FR1489331A
Cited
US3517472A
Cited
US3557514A
Cited
FR2005438A1
Cited
US3562992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |