Valve actuating latching coupler for high pressure device
US4586634A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Mar 12, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6137
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An easily manipulable, high mechanical advantage latching-actuator apparatus for high pressure gas cylinders is provided which employs a single, bidirectionally rotatable operating collar for latching, on-off gas valve operation, and delatching, so as to facilitate gas therapy and cylinder replacement by patient users. In preferred forms, the apparatus includes a slotted valve body affixed to a gas cylinder, along with a separate actuating assembly including a rotatable operator and a reciprocable valve actuator; locking tabs are secured to the operator, and a cam mechanism is used to couple the operator and the valve actuator. Rotation of the operator in a latching direction serves to first move the tabs into latching engagement with the body slot, whereupon, after further rotation of the operator in the same direction past an intermediate "off" position, the valve actuator is cammed into an "on" position for opening the valve carried by the body, thus permitting gas flow from the cylinder. Counter rotation of the operator from the "on" position first permits the valve to close when the operator moves to the "off" position, followed by delatching of the assembly from the valve bod…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.