Patent · US Active

Pavement degradation piston assembly

US7686536B2 · kind B2 · utility

11Cited by

57References

20Claims

0Family size

Inventors

David R. Hall · Provo, US
David Wahlquist · Provo, US
Neil Cannon · Provo, US

Key dates

Filing date	Aug 24, 2007
Grant date	Mar 30, 2010
Priority date	—
Expiry date	Dec 4, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB28D1/26
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A pavement degradation machine has a motorized vehicle adapted to traverse a paved surface. At least one piston apparatus has a distal end and a proximal end, the proximal end adapted for attachment to an underside of the motorized vehicle and the distal end extending towards the paved surface and comprising a rotary bit. The piston apparatus has a shaft disposed within a sleeve. The sleeve is adapted for axial motion and the shaft is adapted for rotational motion independent of the sleeve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.