Patent US5217320A successfully refreshed from Google Patents.
US5217320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle mounted vibrating tamper
Assignee: Individual
•
Filing: 1991-12-16
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Granted: 1993-06-08
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Expires: 2011-12-16
Abstract
Abstract A vehicle mounted vibrating tamping device for attachment to a support vehicle having an attenuated extensible boom to pre-position a vibrating multiple fixture head against a work surface. The tamping device is self-contained independently controlled for selective loading force on the work surface and interconnects with the hydraulic system of the vehicle.
Inventors
- 👤 Dominic A. Cioffi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:57
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/30; E01C19/34; E01C19/38; E01C19/23; E01C19/28; E01C19/286
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
159 words
A vibrating tamper device for use on a vehicle comprises in combination a telescopically extensible support frame and housing, a support tube movably positioned within said housing, a vibrating tool plate on the free end of said support tube, means for vibrating said tool plate, a first hydraulic piston assembly pivotally secured between said support frame and said housing, a second hydraulic piston and cylinder assembly pivotally secured between said housing and said support tube, guide end safety means extending from said housing opposite said support frame, a vehicle hitching assembly having a hitch tongue pivotally secured within and extending from said support assembly in said apertured bracket on said vehicle registerable with said hitching tongue, secondary support means on said support frame, means for controlling said hydraulic piston and cylinder assemblies comprising control and supply lines interconnecting said hydraulic piston and cylinder assemblies and a control panel and a source of hydraulic fluid under pressure on said vehicle.
Claim 2
Dependent Claim
159 words
A vibrating tamper device for use on a vehicle comprises in combination a telescopically extensible support frame and housing, a support tube movably positioned within said housing, a vibrating tool plate on the free end of said support tube, means for vibrating said tool plate, a first hydraulic piston assembly pivotally secured between said support frame and said housing, a second hydraulic piston and cylinder assembly pivotally secured between said housing and said support tube, guide end safety means extending from said housing opposite said support frame, a vehicle hitching assembly having a hitch tongue pivotally secured within and extending from said support assembly in said apertured bracket on said vehicle registerable with said hitching tongue, secondary support means on said support frame, means for controlling said hydraulic piston and cylinder assemblies comprising control and supply lines interconnecting said hydraulic piston and cylinder assemblies and a control panel and a source of hydraulic fluid under pressure on said vehicle.
Claim 3
Dependent Claim
31 words
The vibrating tamping device of claim 1 wherein said tamping foot assembly comprises a reinforced engagement pad, a post attachment extending from said pad assembly movably positioned within said support plate.
Claim 4
Dependent Claim
32 words
The vibrating tamping device of claim 1 wherein said housing is removably secured to said support frame and has spaced multiple mounting lugs engageable with said respective hydraulic piston and cylinder assembly.
Claim 5
Dependent Claim
32 words
The vibrating tamping device of claim 1 wherein said secondary support means comprises a pair of oppositely disposed spaced leg assemblies pivotally secured on said support frame inwardly of said hitching assembly.
Claim 6
Dependent Claim
24 words
The vibrating tamping device of claim 1 wherein said means for vibrating said tool plate comprises a vibrator motor secured to said tool plate.
Claim 7
Dependent Claim
37 words
The vibrating tamping device of claim 1 wherein said second hydraulic piston and cylinder assembly extends said support tube from within said housing imparting selective variable load to said tool plate and respective tool fitting mounted therein.
Claim 8
Dependent Claim
49 words
The vibrating tamping device of claim 4 wherein said secondary support leg assemblies are each comprised of a mounting sleeve on said support frame, a tubular leg extending from said sleeve, a foot assembly adjustably positioned on said leg and means for resiliently retaining said leg within said mounting.
Claim 9
Dependent Claim
51 words
The vibrating tamping device of claim 7 wherein said means for resiliently retaining said leg within said mounting sleeve comprises a spring positioned over one end of said support leg extending above said support sleeve and retained by multiple pins above and below said support sleeve through said tubular support leg.
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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) | 1996-06-07 | 1996-12-07 | 1997-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-07 | 2000-12-07 | 2001-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-07 | 2004-12-07 | 2005-06-08 | $7700.00 | Window Closed / Lapsed |