Ratchet fitting, pipe connecting structure and liquid chromatograph
US11703164B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2022 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | May 9, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/6039
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A ratchet fitting includes a screw portion and an operating portion. One of the screw portion and the operating portion has an engaging member, and the other one of the screw portion and the operating portion has an elastic member and a holding member formed separately from the elastic member. The elastic member and the engaging member are fitted such that a rotational force is transmittable to each other due to engagement of the projection and the protrusion and engagement between the projection and the protrusion is releasable due to deformation of the elastic member. The elastic member has a first fitting portion, the holding member has a second fitting portion, and the holding member and the elastic member are fitted such that the first fitting portion and the second fitting portion are fitted to each other in a rotation direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.