Device for preventing gland nut in valve from loosening
US5938173A · kind A · utility
13Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1998 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Feb 11, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K5/0694
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device for preventing a polygonal gland nut helically coupled with the stem of a valve from loosening includes a locking piece inserted non-rotatable on the stem. A pair of engaging claws are formed on the locking piece to engage with one of the lateral faces of the gland nut and also with two lateral faces of the gland nut adjoining each other straddled an intervening corner of the gland nut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.