US3394640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing inserts for joints in concrete
Assignee: Individual
•
Filing: 1966-08-16
•
Granted: 1968-07-30
•
Expires: 1986-08-16
Abstract
No abstract record available.
Inventors
- 👤 Donald F Dreher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:02
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/12; E01C11/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A COMPRESSIBLE INSERT FOR SEALING A VARIANT JOINT SPACE HAVING CONTRAPOSED FACES, SAID INSERT COMPRISING TWO FLEXURAL UPPER SECTIONS OPPOSED IN SYMMETRY AND JOINED CENTRALLY TO FORM A CENTRAL JUNCTION, SAID SECTIONS HAVING A CENTRAL JUNCTION AND EXTENSION UPWARD AND OUTWARD TO DEFINE CORNER EXTREMITIES TO RESPECTIVELY ENGAGE SAID FACES, A RESILIENT BASE MEMBER, A CENTRAL STEM EXTENDING DOWNWARD FROM SAID CENTRAL JUNCTION AND JOINING THE RESILIENT BASE MEMBER, SAID BASE MEMBER HAVING EXTENSIONS OUTWARD RESPECTIVELY TO ENGAGE SAID FACES AND THEREBY, WHEN THE INSERT IS COMPRESSED WITHIN THE JOINT SPACE, TO EXERT AN UPWARD FORCE COUNTERACTING THE DOWNWARD FORCE EXERTED BY SAID UPPER SECTIONS, THE EXTENSIONS OF SAID UPPER SECTIONS BEING LONGER THAN THOSE OF SAID BASE MEMBER AND ADAPTED THEREBY TO CONVERGE WITH THE OUTWARD PORTIONS THEREOF ADJACENT SAID EXTREMITIES ESSENTIALLY ALIGNED WHEN COMPRESSED BETWEEN SAID FACES.
Claim 2
Dependent Claim
139 words
A COMPRESSIBLE INSERT FOR SEALING A VARIANT JOINT SPACE HAVING CONTRAPOSED FACES, SAID INSERT COMPRISING TWO FLEXURAL UPPER SECTIONS OPPOSED IN SYMMETRY AND JOINED CENTRALLY TO FORM A CENTRAL JUNCTION, SAID SECTIONS HAVING A CENTRAL JUNCTION AND EXTENSION UPWARD AND OUTWARD TO DEFINE CORNER EXTREMITIES TO RESPECTIVELY ENGAGE SAID FACES, A RESILIENT BASE MEMBER, A CENTRAL STEM EXTENDING DOWNWARD FROM SAID CENTRAL JUNCTION AND JOINING THE RESILIENT BASE MEMBER, SAID BASE MEMBER HAVING EXTENSIONS OUTWARD RESPECTIVELY TO ENGAGE SAID FACES AND THEREBY, WHEN THE INSERT IS COMPRESSED WITHIN THE JOINT SPACE, TO EXERT AN UPWARD FORCE COUNTERACTING THE DOWNWARD FORCE EXERTED BY SAID UPPER SECTIONS, THE EXTENSIONS OF SAID UPPER SECTIONS BEING LONGER THAN THOSE OF SAID BASE MEMBER AND ADAPTED THEREBY TO CONVERGE WITH THE OUTWARD PORTIONS THEREOF ADJACENT SAID EXTREMITIES ESSENTIALLY ALIGNED WHEN COMPRESSED BETWEEN SAID FACES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |