Bellows having tweezers-shaped corrugated portions and method for manufacturing same
US11092062B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Feb 8, 2017 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Jan 2, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2470/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bellows having tweezers-shaped corrugated portions for increasing resistance and restoring force against torsion includes: a first flat part having a flat cylindrical shape; a second flat part having a flat cylindrical shape and disposed opposite to the first flat part; and a plurality of corrugated portions, each having a tweezers shape and disposed between the first flat part and the second flat part, wherein each of the plurality of corrugated portions is sequentially connected to each other, so as to increase resistance and restoring force against torsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.