Cutting chain for aggregate materials
US4971022A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1990 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Apr 23, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27B33/145
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutting saw chain for aggregate materials including a loop of articulated chain links adapted to fit the guide bar of a chain saw. The guide bar is provided with a flushing system whereby pressurized water is directed through the bar and into the path of the guided saw chain to cool the chain and flush away debris formed in the cutting operation. The cutting link structure is a folded plate-like member formed into spaced side plate portions and an overhead connecting web. The side plate portions function like side links in a conventional saw chain and ride on the rails of the guide bar. Rivet holes are formed in the side plate portions. Rivets projected through the rivet holes connect the side plate portions to front and rear center links. The side plate portions are fixed in spaced relation by the connecting web an permits the use of rivets with straight shank. The connecting web supports front and rear sections of a cutting block. An opening is provided between the front and rear cutting block sections and through the underlying connecting web to provide a passageway for directing the pressurized water through the chain and directly into the kerf being cut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.