Filter retainer for a vacuum cleaner
AssigneeShop Vac Corporation
InventorRobert C. Berfield
Life of this patent
Estimating the term…
Abstract
A filter retainer for a vacuum cleaner includes a filter cage having several ribs. At the bottom of the filter cage is a lip which includes a plurality of notches. A cylindrical filter having open ends is slid over the filter cage. A cap is placed at the bottom of the filter in order to hold the filter to the filter cage. The cap has a pair of ramps which engage notches on the rim of the filter cage. As the cap is rotated, the cap is pushed towards the filter so that a lip on the cap engages a bottom of the filter.
Claims19
A retainer for a filter in a vacuum cleaner, the retainer comprising:
- a stationary member adjacent a first end of a filter;
- a rim having a plurality of notches spaced from the stationary member;
- a cap having a base and a lip located adjacent a second end of the filter;
- at least one ramp on the base wherein the ramp engages the rim in a notch to force the lip toward the filter when the cap is rotated.
A retainer for a filter in a vacuum cleaner comprising:
- a lid;
- a cage attached to the lid having a plurality of ribs wherein the ribs are generally parallel to each other;
- a rim spaced from the lid connected the ribs;
- notches in the rim, wherein the notches are located adjacent ends of the ribs;
- a cap having a base and a lip wherein the cap is spaced from the lid;
- and
- at least one ramp on the base, wherein the ramp engages the rim in a notch to force the lip toward the ribs when the cap is rotated.
Dependencies are inferred from the claim text.