Pump locking retention features and methods of using the same
US11173509B2 · kind B2 · utility
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5References
6Claims
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Key dates
| Filing date | Jun 8, 2018 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Jun 8, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1074
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Locking features of a pump system may include projections and corresponding features on a piston stem and lock cylinder of a pump system such that the features are configured to require an increased amount of force to rotate and unlock the piston stem from the lock cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.