Check valve system
US11920690B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2019 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Jun 27, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K15/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A check valve system includes a housing, a blocking element, and a biasing member. The housing has a passageway therethrough, the passageway including a first portion and a second portion, the first portion having a diameter that is less than a diameter of the second portion so as to form a stepped portion. The blocking element is disposed within the second portion of the passageway. The biasing member is disposed within the second portion of the passageway and configured to maintain the blocking element in contact with the stepped portion when under compression. The housing, the blocking element and the biasing member being obtainable by substantially simultaneously 3D printing, so as to be formed from one or more 3D printable materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.