Hose valve apparatus and method for retractable hose vacuum systems
US10010229B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 5, 2016 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Oct 5, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23P19/04
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A hose valve for central vacuum cleaning systems having retractable suction hoses that retract into a system vacuum pipe. The hose valve comprises a valve box, a chamber connection port, and a system pipe connection port arranged to securely engage the chamber connection port. A locking assembly is radially disposed about a locking assembly axis between the chamber connection port and the system pipe connection port. The locking assembly comprises a coaxially disposed compression cylinder having a radially outer cylinder surface arranged to define symmetrically disposed helical grooves. A cylindrical deformable sleeve is coaxially disposed adjacent the compression cylinder and is radially inwardly deformable responsive to an axial compressive force. A thrust ring is disposed adjacent the chamber connection port and defines a radially inner surface having opposing inner post groove followers arranged to engage the helical grooves of the compression cylinder to urge the compression cylinder axially toward the system pipe connection port to compress the deformable sleeve to form a seal around a vacuum suction hose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.