Valve stop
US6863261B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Mar 20, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/0056
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A stop (20) for a dispensing valve (10) is adapted to be moveable between a first position abutting a valve surface (28) to seal an opening (30), and a second position spaced from the surface (28) to open the opening (30). The stop (20) has a base (52), and a sealing member (54) connected to the base (52) by a hinge member (60). The sealing member (54) has a sealing surface (66) at a distal end. The sealing member (54) extends away from the base (52) in a first molded position (MP). The sealing member (66) is foldable at the hinge member (60) to a second position (FP) wherein the sealing surface (66) faces generally towards the base (52). The method of making the valve stop (20) includes injection molding the stop (20) such that the sealing surface (66) is free of split-lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.