Low volume precision bellows
US9703261B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2012 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | May 30, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A bellows is provided for fluid storage and displacement used in precise fluid indication in a capillary tube. The bellows is made of a housing made of flexible, watertight material. The housing is made up of an upper portion, a lower portion, and an outer accordion formed portion. The accordion formed portion has a length/and is sealingly connected along a periphery between the upper and lower portions. At least one entry/exit port is formed on at least one of the portions thereof. At least one of the upper and lower portions extends from a periphery of the accordion formed portion substantially within the housing so as to reduce the storage volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.