Reservoir adapter for liquid dispenser
US3952919A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1975 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Jul 3, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/2485
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An adapter for attaching and sealing a liquid supply reservoir on a liquid dispenser of the metering type comprises a reservoir receiving body and a detachable element for securing the body to a dispenser with a seal piercing needle in position to receive the contents of the reservoir. A pivoted clamp is provided for clamping the reservoir on the body when the seal has been pierced and holds the reservoir securely to the body during use of the dispenser. A nut secures the detachable element on the dispenser, a spring bias being provided to afford adjustment of the element with respect to the nut. A check valve is provided to prevent return of liquid to the reservoir and facilitates the use of collapsible supply reservoirs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.