US3100338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of joining
Assignee: Kaiser Aluminum and Chemical Corp
•
Filing: 1958-04-21
•
Granted: 1963-08-13
•
Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Jack L Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:50
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603; B23K35/3605; B22; B22D; B22D19/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12576
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A METHOD OF CONTANING A JOINT BETWEEN A REFRACTORY HARD METAL MEMBER AND AN ALUMIINUM MEMBER COMPRISING THE STEPS OF CLEANING THE PORTION OF THE SURFACE OF SAID HARD METAL REFRACTORY MEMBER WHERE THE JOINT IS TO BE MADE, PREHEATING SAID REFRACTORY HARD METAL MEMBER TO A TEMPERATURE ABOVE THE MELTING POINT OF ALUMINUM, CONTACTING THE SURFACE OF SAID HARD METAL REFRACTORY MEMBER WHILE AT SAID PREHEATING TEMPERATURE WITH A MOLTEN FLUX CONSISTING ESSENTIALLY OF THE FLUROIDES OF SODIUM, ALUMINUM AND LITHIUM AND SOIDUM CHLORIDE, CONTACTING SAID REFRACTORY HARD METAL MEMBER WITH MOLTEN ALUMINUM, AND THEN COOLING SAID REFRACTORY HARD METAL MEMBER AND MOLTEN AND MOLTEN ALUMINUM, THEREBY FORMING A JOINT.
Claim 2
Independent Claim
111 words
A METHOD OF CONTANING A JOINT BETWEEN A REFRACTORY HARD METAL MEMBER AND AN ALUMIINUM MEMBER COMPRISING THE STEPS OF CLEANING THE PORTION OF THE SURFACE OF SAID HARD METAL REFRACTORY MEMBER WHERE THE JOINT IS TO BE MADE, PREHEATING SAID REFRACTORY HARD METAL MEMBER TO A TEMPERATURE ABOVE THE MELTING POINT OF ALUMINUM, CONTACTING THE SURFACE OF SAID HARD METAL REFRACTORY MEMBER WHILE AT SAID PREHEATING TEMPERATURE WITH A MOLTEN FLUX CONSISTING ESSENTIALLY OF THE FLUROIDES OF SODIUM, ALUMINUM AND LITHIUM AND SOIDUM CHLORIDE, CONTACTING SAID REFRACTORY HARD METAL MEMBER WITH MOLTEN ALUMINUM, AND THEN COOLING SAID REFRACTORY HARD METAL MEMBER AND MOLTEN AND MOLTEN ALUMINUM, THEREBY FORMING A JOINT.
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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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |