Flow control device
US6536739B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 1, 2001 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Nov 1, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K7/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved flow control device for regulating the flow of liquid or gas through a length of flexible-conduit using a generally enclosed rack and pinion assembly engaged by an external slidable assembly or switch. The case has a lower rack with a surface supporting a length of flexible conduit, opposing walls, and an upper surface. The lower rack has at least one rack track along which a pinion gear assembly may be engaged and rotated. The pinion gear assembly has a cylinder shaft capped on at least one end by a pinion gear with radiating teeth. The pinion gear assembly can be rotated along a portion of the flexible conduit, compressing it at one or more positions. Operation of the flow control device can be accomplished using a single hand, and the case remains enclosed without subjecting the pinion gear assembly to an external environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.