Patent US3594597A successfully refreshed from Google Patents.
Patent US3093580A successfully refreshed from Google Patents.
US3093580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bar screen
Assignee: Kineflow Corp
•
Filing: 1960-06-09
•
Granted: 1963-06-11
•
Expires: 1980-06-09
Abstract
No abstract record available.
Inventors
- 👤 Norman R Siewert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:27
CPC Classifications
E; E02; E02B; E02B8/00; E02B8/02; E02B8/023; E02B8/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
250 words
A BAR SCREEN FOR SEWAGE CONDUITS COMPRISING A FIXED GRID AND A MOVABLE GRID, SAID FIXED GRID COMPRISING A PLURALITY OF LATERALLY SPACED, PARALLEL, UPWARDLY-EXTENDING BARS MOUNTED IN THE PATH OF SEWAGE FLOW AND INCLINED TO THE DIRECTIO OF SAID FLOW, SAID MOVABLE GRID COMPRISING A PLURALITY OF LATERALLY SPACED, PARALLEL UPWARDLY-EXTENDING BARS CONNECTED TOGETHER TO MOVE AS A UNIT AND SPACED FROM ONE ANOTHER IN CORRESPONDENCE TO THE SPACING OF THE BARS OF SAID FIXED GRID, SAID MOVABLE GRID BEING DISPOSED AT THE UPSTREAM SIDE OF SAID FIXED GRID AND THE BARS OF SAID MOVABLE GRID BEING IN CONTACT WITH THE CORRESPONDING BARS OF SAID FIXED GRID SO THAT THE BARS OF SAID MOVABLE GRID OVERLINE AND RIDE ON THE BARS OF SAID FIXED GRID UPON MOVEMENT OF SAID MOVABLE GRID, MEANS FOR ALTERNATELY LIFTING SAID MOVABLE GRID UPWARDLY AND LETTING IT DROP BACK AGAIN BY GRAVITY TO ITS STARTING POSITION, SAID MEANS IMPARTING A SLIGHT LATERAL WIPING MOTION TO SAID MOVABLE GRID TO CAUSE THE BARS THEREOF TO WIPE ACROSS THE BARS OF SAID STATIONARY GRID AT LEAST ON THE UPWARD MOVEMENT OF SAID MOABLE GRID THEREBY TO PRODUCE A SHEARING ACTION BETWEEN THE BARS OF THE TWO GRIDS, THE LOWER ENDS OF THE BARS OF SAID MOVABLE GRID BEING FREE TO VIBRATE, AND MEANS POSITIONED TO BE ENGAGED BY SAID MOVABLE GRID AT THE END OF THE DOWNWARD DROP OF SAID MOVABLE GRID TO IMPART VIBRATION TO SAID LOWER ENDS OF THE BARS OF SAID MOVABLE GRID.
Claim 2
Dependent Claim
250 words
A BAR SCREEN FOR SEWAGE CONDUITS COMPRISING A FIXED GRID AND A MOVABLE GRID, SAID FIXED GRID COMPRISING A PLURALITY OF LATERALLY SPACED, PARALLEL, UPWARDLY-EXTENDING BARS MOUNTED IN THE PATH OF SEWAGE FLOW AND INCLINED TO THE DIRECTIO OF SAID FLOW, SAID MOVABLE GRID COMPRISING A PLURALITY OF LATERALLY SPACED, PARALLEL UPWARDLY-EXTENDING BARS CONNECTED TOGETHER TO MOVE AS A UNIT AND SPACED FROM ONE ANOTHER IN CORRESPONDENCE TO THE SPACING OF THE BARS OF SAID FIXED GRID, SAID MOVABLE GRID BEING DISPOSED AT THE UPSTREAM SIDE OF SAID FIXED GRID AND THE BARS OF SAID MOVABLE GRID BEING IN CONTACT WITH THE CORRESPONDING BARS OF SAID FIXED GRID SO THAT THE BARS OF SAID MOVABLE GRID OVERLINE AND RIDE ON THE BARS OF SAID FIXED GRID UPON MOVEMENT OF SAID MOVABLE GRID, MEANS FOR ALTERNATELY LIFTING SAID MOVABLE GRID UPWARDLY AND LETTING IT DROP BACK AGAIN BY GRAVITY TO ITS STARTING POSITION, SAID MEANS IMPARTING A SLIGHT LATERAL WIPING MOTION TO SAID MOVABLE GRID TO CAUSE THE BARS THEREOF TO WIPE ACROSS THE BARS OF SAID STATIONARY GRID AT LEAST ON THE UPWARD MOVEMENT OF SAID MOABLE GRID THEREBY TO PRODUCE A SHEARING ACTION BETWEEN THE BARS OF THE TWO GRIDS, THE LOWER ENDS OF THE BARS OF SAID MOVABLE GRID BEING FREE TO VIBRATE, AND MEANS POSITIONED TO BE ENGAGED BY SAID MOVABLE GRID AT THE END OF THE DOWNWARD DROP OF SAID MOVABLE GRID TO IMPART VIBRATION TO SAID LOWER ENDS OF THE BARS OF SAID MOVABLE GRID.
References Cited (Backward Citations)
US1698387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |