US3283679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory earth compacting apparatus and method
Assignee: Pettibone Traverse Lift LLC
•
Filing: 1964-03-05
•
Granted: 1966-11-08
•
Expires: 1984-03-05
Abstract
No abstract record available.
Inventors
- 👤 Cecil W Rafferty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:33
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/23; E01C19/28; E01C19/281
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
VIBRATORY SOIL COMPACTION APPARATUS FOR MAXIMUM VIBRATORY COMPACTION OF SOILS OF DIFFERENT OR UNKNOWN DENSITY WHILE ADVANCING THEREALONG, SAID APPARATUS INCLUDING IN COMBINATION: A MAIN FRAME; A ROLLER FRAME RESILIENTLY MOUNTED FOR VERTICAL MOVEMENT RELATIVE TO SAID MAIN FRAME; AN EARTH-ENGAGING ROLL JOURNALLED IN SAID ROLLER FRAME SUPPORTING IT AND SAID MAIN FRAME; MEANS FOR VIBRATING SAID ROLLER FRAME AND ITS ROLL THROUGH A VERTICAL LOCUS OF MOTION TO COMPACT THE SOIL BENEATH SAID ROLL AS IT ADVANCES ALONG THE SOIL IN A PATH, SAID VIBRATING MEANS INCLUDING AN ENGINE MOUNTED ON SAID MAIN FRAME; MEANS RESPONSIVE TO THE AMPLITUDE OF VERTICAL MOVEMENT OF SAID ROLL DURING ITS ADVANCEMENT ALONG SAID PATH, SAID AMPLITUDE RESPONSIVE MEANS INCLUDING MEANS RESPONSIVE TO INCREMENTAL SMALL CHANGES IN AMPLIUDE FROM A MAXIMUM AMPLITUDE; AND MEANS FOR CHANGING THE SPEED OF SAID ENGINE TO MAXIMIZE SAID AMPLITUDE.
Claim 2
Dependent Claim
142 words
VIBRATORY SOIL COMPACTION APPARATUS FOR MAXIMUM VIBRATORY COMPACTION OF SOILS OF DIFFERENT OR UNKNOWN DENSITY WHILE ADVANCING THEREALONG, SAID APPARATUS INCLUDING IN COMBINATION: A MAIN FRAME; A ROLLER FRAME RESILIENTLY MOUNTED FOR VERTICAL MOVEMENT RELATIVE TO SAID MAIN FRAME; AN EARTH-ENGAGING ROLL JOURNALLED IN SAID ROLLER FRAME SUPPORTING IT AND SAID MAIN FRAME; MEANS FOR VIBRATING SAID ROLLER FRAME AND ITS ROLL THROUGH A VERTICAL LOCUS OF MOTION TO COMPACT THE SOIL BENEATH SAID ROLL AS IT ADVANCES ALONG THE SOIL IN A PATH, SAID VIBRATING MEANS INCLUDING AN ENGINE MOUNTED ON SAID MAIN FRAME; MEANS RESPONSIVE TO THE AMPLITUDE OF VERTICAL MOVEMENT OF SAID ROLL DURING ITS ADVANCEMENT ALONG SAID PATH, SAID AMPLITUDE RESPONSIVE MEANS INCLUDING MEANS RESPONSIVE TO INCREMENTAL SMALL CHANGES IN AMPLIUDE FROM A MAXIMUM AMPLITUDE; AND MEANS FOR CHANGING THE SPEED OF SAID ENGINE TO MAXIMIZE SAID AMPLITUDE.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |