Telescopic module
US11619251B2 · kind B2 · utility
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8References
7Claims
0Family size
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Key dates
| Filing date | Dec 28, 2021 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Dec 28, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32516
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A telescopic module includes a first tube, a second tube, a holder, and a plurality of rollers. The first tube has a passageway. The second tube is received in the passageway of the first tube for reciprocation. The holder is mounted on the first tube. The rollers are pivoted on the holder to rest against the second tube or the first tube, or both to touch an inner side of the first tube and an outer side of the second tube to be turned when the second tube is moving.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.