US3064345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for chucking porous materials
Assignee: Northrop Grumman Corp
•
Filing: 1959-08-27
•
Granted: 1962-11-20
•
Expires: 1979-08-27
Abstract
No abstract record available.
Inventors
- 👤 Virgil L Herman
- 👤 Burdette A Muller
- 👤 Eldon L Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:04
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/06; B23Q3/08; B23Q3/086; B23C; B23C2228/00; B23C2228/25; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49998; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24157
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A METHOD OF PREPARING HONEYCOMB CORE FOR VACUUM CHUCKING, WHICH COMPRISES: MELTING BY HEAT A FLOATABLE POLYGLYCOL MATERIAL CONTAINING 10% WATER BY WEIGHT, FLOATING SAID MELTED MATERIAL IN A RELATIVELY THIN LAYER ON THE SURFACE OF A PERCHLORETHYLENE BATH, IMMERSING A PORTION OF SAID HONEYCOMB CORE HAVING EDGE SURFACES SURROUNDING THE OPENINGS AT EACH END OF THE CELLS THEREOF IN SAID BATH SO THAT SAID MELTED MATERIAL IS POSITIONED IN THE INTERIOR OF SAID HONEYCOMB AND FORMS A CONTINOUS WEB EXTENDING ACROSS AND INTERCONNECTING ALL OF THE CELLS OF SAID HONEYCOMB CORE INTERMEDIATE THE EDGE SURFACES THEREOF, SOLIDIFYING SAID MELTED MATERIAL SO THAT AN AIRTIGHT WEB IS FORMED, AND REMOVING SAID HONEYCOMB CORE FROM SAID BATH WITH SAID SOLID AIRTIGHT WEB THEREIN DEFINING A SEPARATE AIRTIGHT CHAMBER ON EITHER SIDE THEREOF, MOUNTING THE EDGE SURFACES ON ONE SIDE OF SAID WEB INSIDE SAID HONEYCOMB CORE OVER THE EVACUATING OPENINGS OF A VACUUM BED, EVACUATING THE CHAMBER IN SAID HONEYCOMB TO SECURE THE HONEYCOMB TO SAID VACUM BED, REMOVING MATERIAL FROM SAID HONEYCOMB, RELEASING THE VACUUM FROM SAID CHAMBER, REMOVING SAID HONEYCOMB FROM SAID VACUUM BED, AND REMOVING THE SOLIDIFIED MATERIAL OF SAID WEB BY DISSOLVING SAID MATERRIAL IN WATER.
Claim 2
Independent Claim
199 words
A METHOD OF PREPARING HONEYCOMB CORE FOR VACUUM CHUCKING, WHICH COMPRISES: MELTING BY HEAT A FLOATABLE POLYGLYCOL MATERIAL CONTAINING 10% WATER BY WEIGHT, FLOATING SAID MELTED MATERIAL IN A RELATIVELY THIN LAYER ON THE SURFACE OF A PERCHLORETHYLENE BATH, IMMERSING A PORTION OF SAID HONEYCOMB CORE HAVING EDGE SURFACES SURROUNDING THE OPENINGS AT EACH END OF THE CELLS THEREOF IN SAID BATH SO THAT SAID MELTED MATERIAL IS POSITIONED IN THE INTERIOR OF SAID HONEYCOMB AND FORMS A CONTINOUS WEB EXTENDING ACROSS AND INTERCONNECTING ALL OF THE CELLS OF SAID HONEYCOMB CORE INTERMEDIATE THE EDGE SURFACES THEREOF, SOLIDIFYING SAID MELTED MATERIAL SO THAT AN AIRTIGHT WEB IS FORMED, AND REMOVING SAID HONEYCOMB CORE FROM SAID BATH WITH SAID SOLID AIRTIGHT WEB THEREIN DEFINING A SEPARATE AIRTIGHT CHAMBER ON EITHER SIDE THEREOF, MOUNTING THE EDGE SURFACES ON ONE SIDE OF SAID WEB INSIDE SAID HONEYCOMB CORE OVER THE EVACUATING OPENINGS OF A VACUUM BED, EVACUATING THE CHAMBER IN SAID HONEYCOMB TO SECURE THE HONEYCOMB TO SAID VACUM BED, REMOVING MATERIAL FROM SAID HONEYCOMB, RELEASING THE VACUUM FROM SAID CHAMBER, REMOVING SAID HONEYCOMB FROM SAID VACUUM BED, AND REMOVING THE SOLIDIFIED MATERIAL OF SAID WEB BY DISSOLVING SAID MATERRIAL IN WATER.
References Cited (Backward Citations)
US1921809A
Cited
US2328302A
Cited
US2366935A
Cited
US2694228A
Cited
US2731713A
Cited
US2763054A
Cited
US2855653A
Cited
US2855664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |