Scroll pump and scroll pump anti-rotation device
AssigneeEdwards Limited
InventorsRichard Percival-Alwyn, Matthew Paul Reynolds
Life of this patent
Estimating the term…
Abstract
A scroll pump anti-rotation device for resisting relative rotational movement between two scrolls and a scroll pump comprising such a device is disclosed. The anti-rotation device comprises: an elongate member forming an inner ring; an elongate member forming an outer ring surrounding the inner ring; a plurality of connecting members extending between adjacent elongate members; and at least one fixing point for fixing the outer ring to the scroll pump in a fixed relation to one of the scrolls and at least one further fixing point for fixing the inner ring to the scroll pump in a fixed relation to the other of the scrolls.
Claims25
A scroll pump anti-rotation device configured to resist relative rotational movement between two scrolls, the anti-rotation device comprising:
- a first elongate member forming an inner ring;
- a second elongate member forming an outer ring surrounding the inner ring;
- a plurality of connecting members extending between adjacent first and second elongate members;
- and
- at least one fixing point configured to fix the outer ring to the scroll pump in a fixed relation to one of the two scrolls and at least one further fixing point for fixing the inner ring to the scroll pump in a fixed relation to the other of the two scrolls.
Dependencies are inferred from the claim text.