Pressure stepped microwave assisted digestion
US10527530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2018 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | May 31, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/1275
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A venting cap is disclosed for pressure vessels for microwave-assisted chemistry. The venting cap includes a flexible circular cover for closing the mouth of a reaction vessel, a flexible annular wall depending from the circular cover, and a flexible annular ring at the bottom of the annular wall and parallel to the circular cover for positioning the cap on a reaction vessel. At least one indentation in the circular cover minimizes distortion when any contents of a reaction vessel exert pressure against the cap, and at least one opening in the annular wall provides a ventilation path through the cap when gas pressure in a reaction vessel flexes the cap sufficiently to partially disengage at least a portion of the cap from the mouth of the reaction vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.