Apparatus for cleaning pavement expansion joints
US4171849A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1978 |
| Grant date | Oct 23, 1979 |
| Priority date | — |
| Expiry date | Sep 18, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C23/0913
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for removing sealants from expansion joints in pavement slabs preparatory to replacement of the sealant is adapted for demountable attachment to the rear of a motorized vehicle. The apparatus includes a frame which is pivotably movable about a horizontal axis by means of a linear actuator. A carriage, having a cutting tool bit carried in a tool holder at the trailing edge thereof, is supported on the frame so as to be pivotably movable therewith with such movement employed for positioning and holding the cutting tool in the joint being cleaned. The carriage is free to laterally slide relative to the frame for freely tracking the expansion joint being cleaned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.