Dispensing pump with skirt spring
US10773269B2 · kind B2 · utility
5Cited by
19References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2018 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Mar 27, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F1/028
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispensing pump for liquids, viscous materials, foams, gels, etc. includes a resilient plastic skirt spring so that the entire pump can be more easily recycled. The skirt spring comprises a plurality of concentric nesting rings sequentially decreasing in diameter from a base ring to a top ring to form a conical shape wherein adjacent rings are interconnected by spaced bridge segments and the bridge segments are staggered at each sequential ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.