US3247770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road making
Assignee: Individual
•
Filing: 1960-12-14
•
Granted: 1966-04-26
•
Expires: 1980-12-14
Abstract
No abstract record available.
Inventors
- 👤 Glen E Perkins
- 👤 George W Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:43
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/30; E01C19/34; E01C19/40; E01C19/405; E01C19/12; E01C19/18; E01C19/187
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A SLIP FORM CONCRETE PAVING MACHINE FOR MOVEMENT OVER A SUBGRADED ROAD SITE FOR LAYING THEREON IN A SINGLE PASS OF THE MACHINE A FINISHED CONCRETE ROADWAY, SAID MACHINE COMPRISING, IN COMBINATION, A RIGID FRAME STRUCTURE OF SUBSTANTIAL MASS INCLUDING SPACED PARALLEL COEXTENSIVE RIGID SLIP FORMS OF SUBSTANTIAL LENGTH AT THE SIDES THEREOF, A STRIKE-OFF BETWEEN SAID SLIP FORMS ADJACENT THE FORWARD ENDS THEREOF AND EXTENDING FROM ONE FORM TO THE OTHER, MEANS MOUNTING SAID STRIKE-OFF ON SAID FRAME STRUCTURE FOR INDEPENDENT VERTICAL ADJUSTMENT, VIBRATING MEANS MOUNTED ON SAID FRAME STRUCTURE BETWEEN SAID SLIP FORMS REARWARDLY OF SAID STRIKE-OFF AND OPERATIVELY EXTENDING FROM ONE FORM TO THE OTHER, A PRESSURE PLATE BETWEEN SAID SLIP FORMS REARWARDLY OF SAID VIBRATING MEANS AND EXTENDING FROM ONE FORM TO THE OTHER, SAID PLATE INCLUDING A GENERALLY HORIZONTAL PLATE PORTION OF SUBSTANTIAL DIMENSION LONGITUDINALLY OF THE MACHINE AND AN UPRIGHT PORTION EXTENDING UPWARDLY FROM THE FORWARD EDGE OF SAID HORIZONTAL PORTION, AND MEANS MOUNTING SAID PLATE ON SAID FRAME STRUCTURE FOR TRANSFERRING THE MASS OF THE MACHINE TO SAID PLATE, THE MOUNTING MEANS FOR SAID PLATE INCLUDING MEANS FOR EFFECTING INDEPENDENT VERTICAL ADJUSTMENT OF EACH OF THE FORWARD AND REARWARD EDGES OF SAID GENERALLY HORIZONTAL PORTION OF SAID PLATE.
Claim 2
Dependent Claim
205 words
A SLIP FORM CONCRETE PAVING MACHINE FOR MOVEMENT OVER A SUBGRADED ROAD SITE FOR LAYING THEREON IN A SINGLE PASS OF THE MACHINE A FINISHED CONCRETE ROADWAY, SAID MACHINE COMPRISING, IN COMBINATION, A RIGID FRAME STRUCTURE OF SUBSTANTIAL MASS INCLUDING SPACED PARALLEL COEXTENSIVE RIGID SLIP FORMS OF SUBSTANTIAL LENGTH AT THE SIDES THEREOF, A STRIKE-OFF BETWEEN SAID SLIP FORMS ADJACENT THE FORWARD ENDS THEREOF AND EXTENDING FROM ONE FORM TO THE OTHER, MEANS MOUNTING SAID STRIKE-OFF ON SAID FRAME STRUCTURE FOR INDEPENDENT VERTICAL ADJUSTMENT, VIBRATING MEANS MOUNTED ON SAID FRAME STRUCTURE BETWEEN SAID SLIP FORMS REARWARDLY OF SAID STRIKE-OFF AND OPERATIVELY EXTENDING FROM ONE FORM TO THE OTHER, A PRESSURE PLATE BETWEEN SAID SLIP FORMS REARWARDLY OF SAID VIBRATING MEANS AND EXTENDING FROM ONE FORM TO THE OTHER, SAID PLATE INCLUDING A GENERALLY HORIZONTAL PLATE PORTION OF SUBSTANTIAL DIMENSION LONGITUDINALLY OF THE MACHINE AND AN UPRIGHT PORTION EXTENDING UPWARDLY FROM THE FORWARD EDGE OF SAID HORIZONTAL PORTION, AND MEANS MOUNTING SAID PLATE ON SAID FRAME STRUCTURE FOR TRANSFERRING THE MASS OF THE MACHINE TO SAID PLATE, THE MOUNTING MEANS FOR SAID PLATE INCLUDING MEANS FOR EFFECTING INDEPENDENT VERTICAL ADJUSTMENT OF EACH OF THE FORWARD AND REARWARD EDGES OF SAID GENERALLY HORIZONTAL PORTION OF SAID PLATE.
References Cited (Backward Citations)
US1306353A
Cited
DE636712C
Cited
US544235A
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US1584385A
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US1982387A
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US2090959A
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US2094910A
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US2084068A
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US2245426A
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US2235105A
Cited
US2269109A
Cited
US2351592A
Cited
US2380435A
Cited
US2346379A
Cited
US2779258A
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US2864290A
Cited
US3087394A
Cited
US2976784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |