Quick release cover assembly for a liquid filter housing
US4659466A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1985 |
| Grant date | Apr 21, 1987 |
| Priority date | — |
| Expiry date | Mar 1, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/301
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A quick release cover assembly for a cylindrical liquid filter housing which includes an outer cover plate pivotally mounted on the filter housing, an inner cover plate having a beveled cylindrical side wall and being carried by the outer plate and an O-ring which is disposed about the beveled wall of the inner plate adjacent the under side of the outer plate. A plurality of locking dogs are carried by the upper surface of the outer plate which are adapted to be inserted and rotated within a corresponding plurality of L-shaped slots adjacent the open end of the filter housing. A threaded fastener is provided for drawing the inner and outer plates together upon the locking dogs being so disposed within the slots in the housing so as to press the O-ring outwardly against the interior wall of the filter housing thereby releasably sealing the cover assembly to the housing. An inner lock bar is slidably mounted on the outer cover which is adapted to be slided into one of the L-shaped slots in the housing adjacent the locking dog extending therethrough. The inner lock bar prevents tighten of the threaded fastener and squeezing of the O-ring against the housing prior to the locking dogs b…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.