Improvement in rotary valves
US4830043A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1988 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Feb 22, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/604
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a rotary valve assembly including a housing having a valve chamber and a removable cover member defining an end wall of the chamber, a drive shaft journaled in the housing and having an end portion projecting into the valve chamber and a rotary valve disposed in the valve chamber and slidably mounted on the drive shaft end portion whereby the rotary valve may be removed from the housing by removing the cover member and sliding the rotary valve off of the drive shaft end portion and passing it through the opening provided by the removal of the cover member, means for detachably securing the rotary valve on the drive shaft end portion generally consisting of the drive shaft having an opening therein, the rotary valve having an opening therein registrable with the drive shaft opening, a pin inserted in the rotary valve and drive shaft openings when the openings are in registry, and cooperative means disposed on the pin and one of the drive shaft and the rotary valve for yieldably retaining the pin in the openings whereby rotary drive may be transmitted from the drive shaft to the rotary valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.