US3300850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening means and method of fastening electrostatic filter plates
Assignee: GEA Group AG
•
Filing: 1962-04-09
•
Granted: 1967-01-31
•
Expires: 1982-04-09
Abstract
No abstract record available.
Inventors
- 👤 Steuernagel Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:00
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/40; B03C3/86; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/968; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49835; Y10T29/49947; Y10T29/49948; Y10T403/00; Y10T403/70; Y10T403/7062
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
A METHOD FOR SECURING A THIN METAL ELECTRODE PRECIPITATING PLATE TO A BEAM IN AN ELECTRICAL PRECIPITATOR COMPRISING FORMING A COUNTERSUNK BORE HOLE IN SAID BEAM, COVERING SAID BEAM AND HOLE WITH SAID PLATE, PLACING A CONICALLY SHAPED DISC ON A SHARP POINTED THREADED BOLT, PUNCTURING SAID PLATE BY SAID BOLT AND EXTENDING SAID BOLT THROUGH SAID BORE HOLE, AND THEN TIGHTENING SAID BOLT TO FORCE SAID DISC AGAINST THE PERIPHERY OF THE PUNCTURED OPENING IN SAID PLATE AND DEPRES SAID PERIPHERY INTO TIGHT ENGAGEMENT WITH SAID COUNTERSUNK BORE HOLE.
Claim 2
Independent Claim
90 words
A METHOD FOR SECURING A THIN METAL ELECTRODE PRECIPITATING PLATE TO A BEAM IN AN ELECTRICAL PRECIPITATOR COMPRISING FORMING A COUNTERSUNK BORE HOLE IN SAID BEAM, COVERING SAID BEAM AND HOLE WITH SAID PLATE, PLACING A CONICALLY SHAPED DISC ON A SHARP POINTED THREADED BOLT, PUNCTURING SAID PLATE BY SAID BOLT AND EXTENDING SAID BOLT THROUGH SAID BORE HOLE, AND THEN TIGHTENING SAID BOLT TO FORCE SAID DISC AGAINST THE PERIPHERY OF THE PUNCTURED OPENING IN SAID PLATE AND DEPRES SAID PERIPHERY INTO TIGHT ENGAGEMENT WITH SAID COUNTERSUNK BORE HOLE.
Claim 3
Independent Claim
86 words
A DEVICE FOR JOINING A THIN METAL ELECTRODE PRECIPITATING PLATE TO A BEAM HAVING A COUNTERSUNK BORE HOLE THEREIN COMPRISING A SHARP POINTED THREADED BOLT, A CONICALLY SHAPED DISC ON SAID BOLT, NUT MEANS FOR URGING SAID BOLT INTO PUNCTURING ENGAGEMENT WITH SAID PLATE AND THROUGH SAID BORE HOLE, AND SECOND NUT MEANS FOR TIGHTENING SAID BOLT AND FORCING SAID CONICALLY SHAPED MEMBER INTO ENGAGEMENT WITH THE PERIPHERY OF THE PUNCTURED OPENING IN SAID PLATE AND DEPRESS SAID PERIPHERY INTO TIGHT ENGAGEMENT WITH SAID COUNTERSUNK HOLE.
Claim 4
Independent Claim
86 words
A DEVICE FOR JOINING A THIN METAL ELECTRODE PRECIPITATING PLATE TO A BEAM HAVING A COUNTERSUNK BORE HOLE THEREIN COMPRISING A SHARP POINTED THREADED BOLT, A CONICALLY SHAPED DISC ON SAID BOLT, NUT MEANS FOR URGING SAID BOLT INTO PUNCTURING ENGAGEMENT WITH SAID PLATE AND THROUGH SAID BORE HOLE, AND SECOND NUT MEANS FOR TIGHTENING SAID BOLT AND FORCING SAID CONICALLY SHAPED MEMBER INTO ENGAGEMENT WITH THE PERIPHERY OF THE PUNCTURED OPENING IN SAID PLATE AND DEPRESS SAID PERIPHERY INTO TIGHT ENGAGEMENT WITH SAID COUNTERSUNK HOLE.
References Cited (Backward Citations)
US1342201A
Cited
US2391761A
Cited
US2505175A
Cited
US2643721A
Cited
US2740192A
Cited
US2815791A
Cited
US2928450A
Cited
US2856680A
Cited
US3019854A
Cited
US3208328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |