Feed control device for plumbing tools
US5901401A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Jul 28, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B9/045
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A feed control device particularly suited for mounting on a hand held, power driven drain cleaning apparatus having an elongate rotatable snake comprises a tubular housing having a transverse wall therein provided with a passage for the snake, a pair of driving rolls mounted on the wall for rotation about axes skewed relative to the housing axis and a drive actuating roll mounted on the housing for radial displacement to engage the rotating snake against the driving rolls. The actuating drive roll provides the inner end of an actuating drive unit having an outer end engaged by a pivotal lever on the housing for displacing the actuating drive roll against the snake. The actuating drive unit is adjustable in length between the inner and outer ends thereof and is removably supported on the housing, and the lever and outer end of the drive actuating unit interengage for the member to retain the parts of the actuating drive unit in an adjusted position and to releasably hold the drive actuating unit on the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.