US3433692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming herringbone configurations for sandwich structures
Assignee: Marc Wood Materials SA Pour La
•
Filing: 1962-08-08
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Granted: 1969-03-18
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Expires: 1982-08-08
Abstract
No abstract record available.
Inventors
- 👤 Lucien-Victor Gewiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:58
CPC Classifications
B; B65; B65D; B65D65/00; B65D65/38; B65D65/40; B65D65/403; B21; B21D; B21D47/00; E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/3405; E04C2/36; E04C2002/3444; E04C2002/345; E04C2002/3466; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T156/1052
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A METHOD OF FORMING SANDWICH STRUCTURES CONSITUTED BY A PLURALITY OF SPACED SKINS CONNECTED BY A CENTRAL CELLULAR CORE, SAID CORE ABUTTING AND BEING BONDED TO EACH OF SAID SKINS AT A PLURALITY OF SPACED POINTS, COMPRISING: RENDERING THE ABUTTING SURFACES OF A CONTINUOUS SHEET OF CORE MATERIAL AND A PAIR OF AKINS ADHESIVE RELATIVE TO ONE ANOTHER SOLELY AT SAID PLURALITY OF SAID SPACED POINTS; SANDWICHING SAID SKINS ABOUT AND IN CONTACT WITH SAID SHEET OF CORE MATERIAL SO THAT THE PLANE OF THE LATTER IS PARALLEL TO THE PLANE OF SAID SKINS AND SO THAT SAID SKINS CONTACT SAID CORE BOTH AT SAID SPACED POINTS AND AT POINTS THEREBETWEEN, SAID CORE MATERIAL BEING EXTENSIBLE UNDER A FIRST CONDITION AND RIGID UNDER A SECOND CONDITION; ADHERING EACH OF SAID SKINS TO THE SIDE OF SAID SHEET WITH WHICH IT IS IN CONTACT SOLELY AT SAID PLURALITY OF SAID SPACED POINTS BY MEANS OF THE RELATIVELY ADHESIVE PROPERTY OF SAID ABUTTING SURFACES; MOVING SAID SKINS APART INTO A PREDETERMINED SPACED RELATIONSHIP WHILE SAID CORE MATERIAL IS UNDER SAID FIRST OF SAID CONDITIONS; AND RIGIDIFYING SAID CORE MATERIAL WHILE SAID SKINS ARE IN SAID SPACED RELATIONSHIP BY SUBJECTING SAID CORE MATERIAL TO SAID SECOND CONDITION.
Claim 2
Independent Claim
204 words
A METHOD OF FORMING SANDWICH STRUCTURES CONSITUTED BY A PLURALITY OF SPACED SKINS CONNECTED BY A CENTRAL CELLULAR CORE, SAID CORE ABUTTING AND BEING BONDED TO EACH OF SAID SKINS AT A PLURALITY OF SPACED POINTS, COMPRISING: RENDERING THE ABUTTING SURFACES OF A CONTINUOUS SHEET OF CORE MATERIAL AND A PAIR OF AKINS ADHESIVE RELATIVE TO ONE ANOTHER SOLELY AT SAID PLURALITY OF SAID SPACED POINTS; SANDWICHING SAID SKINS ABOUT AND IN CONTACT WITH SAID SHEET OF CORE MATERIAL SO THAT THE PLANE OF THE LATTER IS PARALLEL TO THE PLANE OF SAID SKINS AND SO THAT SAID SKINS CONTACT SAID CORE BOTH AT SAID SPACED POINTS AND AT POINTS THEREBETWEEN, SAID CORE MATERIAL BEING EXTENSIBLE UNDER A FIRST CONDITION AND RIGID UNDER A SECOND CONDITION; ADHERING EACH OF SAID SKINS TO THE SIDE OF SAID SHEET WITH WHICH IT IS IN CONTACT SOLELY AT SAID PLURALITY OF SAID SPACED POINTS BY MEANS OF THE RELATIVELY ADHESIVE PROPERTY OF SAID ABUTTING SURFACES; MOVING SAID SKINS APART INTO A PREDETERMINED SPACED RELATIONSHIP WHILE SAID CORE MATERIAL IS UNDER SAID FIRST OF SAID CONDITIONS; AND RIGIDIFYING SAID CORE MATERIAL WHILE SAID SKINS ARE IN SAID SPACED RELATIONSHIP BY SUBJECTING SAID CORE MATERIAL TO SAID SECOND CONDITION.
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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) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |