Patent · US Expired

Bi-directional hydrodynamic slitted seal

US4451050A · kind A · utility

29Cited by
5References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 16, 1983
Grant dateMay 29, 1984
Priority date
Expiry dateMay 16, 2003

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16J15/3244
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A polytetrafluoroethylene seal with intersecting arcuate slitted grooves to effect bi-directional hydrodynamic pumping of oil due to rotation of a shaft about which the seal is disposed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.