Integral flanged elastomeric flow restrictor
US4105050A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1976 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Oct 20, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7869
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An integrally molded, elastomeric fluid flow restrictor for use in pipes to even the volumetric time rate of flow of fluid through a pipe regardless of applied fluid pressure. The restrictor has a flow passage orifice which elastically responds to compressional fluid pressure to vary in size inversely to applied pressure. The restrictor includes integrally attached to the main body upstream and downstream annular flanges of an outer diameter less than the main body diameter, thereby defining a shoulder on the main body, and the flanges have an inner diameter larger than the flow orifice. The shoulder of the main body is beveled slightly inward to seat against a fitting to provide a tight seal in actual operation. A fitting adapted to the restrictor which fits into a hydraulic system is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.