US2671746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding system
Assignee: Richard D Brew and Co Inc
•
Filing: 1950-06-17
•
Granted: 1954-03-09
•
Expires: 1970-06-17
Abstract
No abstract record available.
Inventors
- 👤 Richard D Brew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:27
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/26; Y; Y10; Y10S; Y10S29/00; Y10S29/022; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12542; Y10T428/12597; Y10T428/12681; Y10T428/12708
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE METHOD OF MECHANICALLY AND ELECTROMAGNETICALLY BONDING GEOMETRICALLY SUBSTANTIALLY CONGRUENT SURFACES OF TWO BODIES, WHICH COMPRISES THE STEPS OF CHEMICALLY CLEANING SAID SURFACES, SIMULTANEOUSLY EVAPORATING IN VACUO ON EACH OF SAID SURFACES AN INDIUM COATING, EACH COATING HAVING A THICKNESS OF THE ORDER OF 0.5 TO 25 MICRONS, AND JOINING SAID BODIES AT ORDINARY TEMPERATURE SOLELY BY FORCING SAID COATINGS TOGETHER UNDER A PRESSURE OF NOT LESS THAN APPROXIMATELY 1,500 LBS, PER SQUARE INCH; WHEREBY AN INTERMOLECULAR BOND IS FORMED WHICH WILL TRANSMIT ULTRASONIC ENERGY UNDER EXTREME TEMPERATURE VARIATIONS.
Claim 2
Independent Claim
89 words
THE METHOD OF MECHANICALLY AND ELECTROMAGNETICALLY BONDING GEOMETRICALLY SUBSTANTIALLY CONGRUENT SURFACES OF TWO BODIES, WHICH COMPRISES THE STEPS OF CHEMICALLY CLEANING SAID SURFACES, SIMULTANEOUSLY EVAPORATING IN VACUO ON EACH OF SAID SURFACES AN INDIUM COATING, EACH COATING HAVING A THICKNESS OF THE ORDER OF 0.5 TO 25 MICRONS, AND JOINING SAID BODIES AT ORDINARY TEMPERATURE SOLELY BY FORCING SAID COATINGS TOGETHER UNDER A PRESSURE OF NOT LESS THAN APPROXIMATELY 1,500 LBS, PER SQUARE INCH; WHEREBY AN INTERMOLECULAR BOND IS FORMED WHICH WILL TRANSMIT ULTRASONIC ENERGY UNDER EXTREME TEMPERATURE VARIATIONS.
References Cited (Backward Citations)
US1873776A
Cited
US2139431A
Cited
US2130879A
Cited
US2283705A
Cited
US2239452A
Cited
US2275952A
Cited
US2281280A
Cited
US2480453A
Cited
US2504320A
Cited
US2557983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |