← Back to Patent Explorer
US4909663A Expired / Lapsed US ⏱️ 0.0 years remaining

Road making apparatus

Assignee: Individual
•
Filing: 1987-12-24
•
Granted: 1990-03-20
•
Expires: 2007-12-24
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An arrangement of a roller in combination with a draft vehicle comprising a draft frame, axle means supported by the draft frame, and roller supported by the axle means to allow rotational freedom about a central axis of a cylindrical shape of the roller, the arrangement being characterized in that the draft frame is connected to the draft vehicle by means constraining rotation of the draft frame relative to the draft vehicle about a vertical axis.

Inventors

  • 👤 Peter D. Freeman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 18:04
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/23; E01C19/26; E01C19/266; E01C19/27

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 171 words
A roller in combination with a draft vehicle, comprising a draft frame, axle means supported by the draft frame, and a roller supported by the axle means to allow rotational freedom about a central axis of the roller, said roller comprising a plurality of pneumatic tires in adjoining coaxial alignment, a common pressure conduit coupled to each of the pneumatic tires whereby each may be inflated and maintained at a common pressure, said draft vehicle comprising a transverse bar secured by lift linkage to the vehicle, said transverse bar having a plurality of vertically oriented transversely spaced openings, the arrangement being characterized in that the draft frame is connected to the transverse bar by connecting means preventing rotation of the draft frame relative to the draft vehicle about a vertical axis, said connecting means comprising vertically oriented arms rigidly secured to and extending forwardly from said roller and being detachably secured in said transverse bar openings, whereby said roller draft frame may be raised and lowered by said vehicle lift linkage.
Claim 2
Dependent Claim 171 words
A roller in combination with a draft vehicle, comprising a draft frame, axle means supported by the draft frame, and a roller supported by the axle means to allow rotational freedom about a central axis of the roller, said roller comprising a plurality of pneumatic tires in adjoining coaxial alignment, a common pressure conduit coupled to each of the pneumatic tires whereby each may be inflated and maintained at a common pressure, said draft vehicle comprising a transverse bar secured by lift linkage to the vehicle, said transverse bar having a plurality of vertically oriented transversely spaced openings, the arrangement being characterized in that the draft frame is connected to the transverse bar by connecting means preventing rotation of the draft frame relative to the draft vehicle about a vertical axis, said connecting means comprising vertically oriented arms rigidly secured to and extending forwardly from said roller and being detachably secured in said transverse bar openings, whereby said roller draft frame may be raised and lowered by said vehicle lift linkage.

References Cited (Backward Citations)

US1976235A Cited
US2127075A Cited
US2199649A Cited
US2739517A Cited
US2721405A Cited
US3463552A Cited
US3993413A Cited
US4714295A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-03-19 1993-09-18 1994-03-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-03-19 1997-09-18 1998-03-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-03-19 2001-09-18 2002-03-20 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag