Manually actuated fluid flow control valve and method of making same
US4678159A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1985 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | May 14, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K27/07
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A manually actuated fluid flow control valve assembly and method of making same are provided wherein the valve assembly has an associated support structure and has a manually operated handle operatively connected to a closure device for the valve assembly and the handle is manually movable between an open and closed position thereof which define corresponding open and closed positions of the closure device and wherein the valve assembly has a manually releasable means which includes automatic lock means for automatically locking the handle once the handle and its closure device are in a closed position. In accordance with another embodiment of this invention an improved manually operated handle is provided for such valve assembly, and such handle has a weakened portion which assures easy shearing thereof under certain conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.