Inflator with varying mechanical advantage
US10130799B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2014 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Aug 16, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0681
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An inflator comprises a body, a first drive member, and a second drive member. The body defines a reservoir that is configured to hold fluid and includes an outlet. The first drive member is operable to move through the reservoir to drive fluid from the reservoir through the outlet. The second drive member is engaged with the first drive member. The second drive member is movable relative to the body through a first range of motion to actuate the first drive member to drive fluid through the outlet at a first rate. The second drive member is movable relative to the body through a second range of motion following the first range of motion. The first drive member is configured to either drive fluid through the outlet at a second rate or not drive fluid through the outlet as the second drive member moves through the second range of motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.