Open flow valve assembly
US4690296A · kind A · utility
10Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Oct 17, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D11/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A non obstructing, flap type valve for a circular conduit is defined as a right angle section from a cylinder wall of the same diameter. A mating, right angle section taken from the end of the circular conduit defines the valve seat. The valve is end mounted and pivots from a closed sealing configuration to an open, free flow position. A flattened rod cooperates with a cam surface to lock the valve in the closed position, or a bias spring may maintain the valve closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.