Hand-held pump type dispenser
US3937366A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1974 |
| Grant date | Feb 10, 1976 |
| Priority date | — |
| Expiry date | Apr 5, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/0013
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hand-held pump dispenser comprising a container having a neck portion, a pump assemblage including a piston and a tubular stationary cylinder member, the latter being adapted for disposition in the neck portion, and a resilient press-fit adapter carrying the cylinder member of the pump assemblage and arranged for insertion in the neck portion so as to make a tight press fit therewith. Interlocking means are provided on the cylinder member and on the adapter for enabling the latter to be snapped onto the member; additional means on the container neck and the adapter are provided for enabling the two parts, when assembled, to be snapped into the neck portion. The arrangement is such that all parts can be readily molded in simple mold cavities and easily assembled with a minimum of time and effort, and in the absence of special tooling or equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.