Atomizing or metering pump
US4871092A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 3, 1988 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Oct 3, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/106
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispensing pump means has an operating pusher for effecting a pump stroke and a control means for selectively varying the length of stroke. The control includes a neck on a base for receiving the operating pusher, cooperating grooves and abutment shoulders guiding the pusher and setting its maximum stroke. At least one projection positively slides in a selected one of a plurality of grooves of different lengths, the projection being positioned out of the grooves and in front of the ends of the grooves in an initial position of the pump, i.e., prior to the pump stroke. Axially preceding the ends of the grooves, an arched path extends around the pump axis and guides the projection during manual rotation of the operation pusher as the projection is positioned over the selected groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.