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Class 418/252 - WITH PROVISION FOR QUICK VANE REPLACEMENT


Subclass of Class 418 - Rotary expansible chamber devices
Definition: Apparatus in which the working member is provided with a
No. of patents: 5
Last issue date: 09/16/2003


NumberTitleIssue Date
6619938Flexible vane pump
A pump has a rotor with two or more flexible vanes forming one or more compartments between adjacent vanes. The rotor is mounted offset relative to a rotor sleeve such that the volume of the compartments varies as the rotor rotates in the sleeve. Incoming...
09/16/2003
6394778Vane restraint mechanism for axial-vane rotary device
An axial-vane rotary device with a rotor assembly having a rotor core and a plurality of removable end blocks attached to the core, end blocks having recesses to encapsulate a vane restraint mechanism, and a removable end wall on one or more of the end bl...
05/28/2002
4958992Variable capacity swivelling vane pump
Variable capacity swivelling vane pump, comprising a radially displaceable rotor (13) connecting eccentrically in a rotor cage (h) with guided vanes (15), which are rotatably supported in vane recesses (16) and on cage pins (14). The vanes (15) thus conve...
09/25/1990
4728270Apparatus and method for replacing apex seals in a rotary device
A rotary device and method for replacing apex seals is provided. The rotary device comprises a housing having a peripheral wall surface and two inner side walls that define a chamber. A rotor is located within the chamber and rotates therein. The peripher...
03/01/1988
4083664Rotary hydraulic device with retaining means for pumping element biasing springs
An improved hydraulic device includes a rotor which is circumscribed by a cam surface. A series of peripheral slots are formed in the rotor. Each of the slots receives a pumping element which is spring urged toward engagement with the cam surface as the r...
04/11/1978
 
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