Wet/dry cleaner
US5697120A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1995 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Jun 22, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4088
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A suction tube assembly for a wet/dry cleaner comprising a suction tube (60), a shampoo delivery conduit (44,45) extending along the suction tube, a valve forming a part of the conduit and operating means (50) for the user to operate the valve whilst manipulating the suction tube, the valve comprising a valve body (18) having a tubular portion within which is located a generally tubular portion of a valve piston (38), said tubular valve piston portion having a bore in its wall to provide communication between the interior and exterior of the tubular piston portion, means (37) biasing the piston towards a position in which sealing means (32,34) between the piston and the body prevent flow of fluid beyond said piston, said piston being movable axially by the operating means against said biasing means to release said sealing means and thereby allow fluid flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.