Apparatus to protect sealing surfaces of thief hatches
US10161521B2 · kind B2 · utility
1Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2017 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Mar 27, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K24/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Apparatus to protect sealing surfaces of thief hatches are disclosed. An example apparatus includes a base attachable to a tank around an aperture in the tank. The example apparatus further includes a spacer supported by a support surface of the base. The example apparatus also includes a cover selectively moveable between a closed position covering the aperture and an open position providing access to the aperture, the spacer separating the cover from the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.