Fluid reservoir for a handheld device for personal care
US8651340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2010 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Aug 11, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H2201/105
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A fluid reservoir for storing a fluid for a handheld device includes a housing and a flexible membrane. The flexible membrane delimits a variable storage volume in the housing. The storage volume may be varied by a defamation of the membrane. The variable storage volume has an output port. The fluid reservoir further includes a forcing member to exert a force on the membrane to pressurize a fluid in the storage volume. The forcing member has a recess for receiving a part of the storage volume. The membrane may be received into the recess of the forcing member during a compression stroke. By virtue thereof, a volume defined by the recess may be effectively used to become part of the storage volume for the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.