US2965530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for joining dissimilar materials
Assignee: Parsons Corp
•
Filing: 1954-08-18
•
Granted: 1960-12-20
•
Expires: 1974-08-18
Abstract
No abstract record available.
Inventors
- 👤 Stamm Robert Henry
- 👤 Alb C Ballauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:45
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K20/2275; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49758; Y10T29/4976; Y10T29/49826; Y10T29/49863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A METHOD FOR OVERCOMING THERMAL EFFECTS IN MAKING LENGTHWISE JOINTS OF MEMBERS FORMED OF MATERIALS HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION, FOR USE IN A RANGE OF SERVICE TEMPERATURES SUBSTANTIALLY DIFFERENT FROM THE JOINING TEMPERATURE, COMPRISING THE STEPS OF BRINGING THE TEMPERATURE OF THE MEMBERS TO BE JOINED WITHIN THE RANGE OF SERVICE TEMPERATURES, POSITIONING THENEQUAL LENGTHS OF SAID MEMBERS FOR JOINING, INDEPENDENTLY BRINGING TO SUBSTANTIALLY THE SAME TEMPERATURE A FIXTURE FORMED OF MATERIAL HAVING A COEFFICIENT OF THERMAL EXPANSION SIMILAR TO THAT OF THE MEMBER WHICH, IF FREE, WOULD BE THE LONGER AT JOINING TEMPERATURE, SECURING THE ENDS OF THE MEMBERS SO POSITIONED TO SUCH FIXTURE, BRINGING THE FIXTURE AND THE MEMBERS SECURED THERE TO JOINING TEMPERATURE, WHEREBY THE MEMBER WHOSE COEFFICIENT OF THERMAL EXPANSION IS DIFFERENT FROM THAT OF THE FIXTURE WILL BE HELD BY THE FIXTURE ELONGATED IN TENSION SUFFICIENTLY TO COMPENSATE SUBSTANTIALLY FOR THE DISSIMILARITY OF THERMAL COEFFICIENTS OF THE MATERIALS TO BE JOINED, THEN JOINING, THEN BRINGING THE TEMPERATURE OF THE FIXTURE AND THE JOINED MEMBERS TO WITHIN THE RANGE OF SERVICE TEMPERATURES, THEN RELEASING THE MEMBERS SO JOINED FROM THE FIXTURE.
Claim 2
Independent Claim
187 words
A METHOD FOR OVERCOMING THERMAL EFFECTS IN MAKING LENGTHWISE JOINTS OF MEMBERS FORMED OF MATERIALS HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION, FOR USE IN A RANGE OF SERVICE TEMPERATURES SUBSTANTIALLY DIFFERENT FROM THE JOINING TEMPERATURE, COMPRISING THE STEPS OF BRINGING THE TEMPERATURE OF THE MEMBERS TO BE JOINED WITHIN THE RANGE OF SERVICE TEMPERATURES, POSITIONING THENEQUAL LENGTHS OF SAID MEMBERS FOR JOINING, INDEPENDENTLY BRINGING TO SUBSTANTIALLY THE SAME TEMPERATURE A FIXTURE FORMED OF MATERIAL HAVING A COEFFICIENT OF THERMAL EXPANSION SIMILAR TO THAT OF THE MEMBER WHICH, IF FREE, WOULD BE THE LONGER AT JOINING TEMPERATURE, SECURING THE ENDS OF THE MEMBERS SO POSITIONED TO SUCH FIXTURE, BRINGING THE FIXTURE AND THE MEMBERS SECURED THERE TO JOINING TEMPERATURE, WHEREBY THE MEMBER WHOSE COEFFICIENT OF THERMAL EXPANSION IS DIFFERENT FROM THAT OF THE FIXTURE WILL BE HELD BY THE FIXTURE ELONGATED IN TENSION SUFFICIENTLY TO COMPENSATE SUBSTANTIALLY FOR THE DISSIMILARITY OF THERMAL COEFFICIENTS OF THE MATERIALS TO BE JOINED, THEN JOINING, THEN BRINGING THE TEMPERATURE OF THE FIXTURE AND THE JOINED MEMBERS TO WITHIN THE RANGE OF SERVICE TEMPERATURES, THEN RELEASING THE MEMBERS SO JOINED FROM THE FIXTURE.
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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) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |