US 2021/0229018 A1Published application

Dust collector

AssigneeLincoln Global, Inc.

InventorsNino V. Silvestro, Brian L. Shetler

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Abstract

A dust collector includes an enclosure and a tube sheet separating filter and clean air compartments. The tube sheet forms a filter opening and a filter is located within the filter compartment and includes a filter flange having an air outlet aligned with said filter opening. The flange includes first and second alignment structures located on a first lateral side of the flange. A clamping assembly includes first and second filter clamps that are movable between a sealing position for sealing the filter flange against the tube sheet, and a release position. The first filter clamp engages the first alignment structure when in the sealing position. The second filter clamp engages the second alignment structure when in the sealing position. The dust collector includes means for moving the filter clamps between the sealing position and the release position.

Claims18

Dependent claims

An air filter, comprising:

a filter flange comprising a tray having a lower clamping surface, a second surface opposite the lower clamping surface, and an upwardly-projecting edge surrounding the second surface of the tray, wherein the filter flange forms a central aperture;
an end cap;
a filter element located between the lower clamping surface of the filter flange and the end cap;
and
a gasket concentric with the central aperture and located inward of the upwardly-projecting edge of the tray;
wherein a first lateral side of the lower clamping surface of the filter flange includes a first clamping depression and a second clamping depression, wherein the first clamping depression and the second clamping depression are linearly aligned along the first lateral side of the lower clamping surface, and the first clamping depression is offset from the second clamping depression along the first lateral side of the lower clamping surface,
wherein a second lateral side of the lower clamping surface of the filter flange includes a third clamping depression and a fourth clamping depression, wherein the third clamping depression and the fourth clamping depression are linearly aligned along the second lateral side of the lower clamping surface, and the third clamping depression is offset from the fourth clamping depression along the second lateral side of the lower clamping surface, and
wherein the first clamping depression, the second clamping depression, the third clamping depression, and the fourth clamping depression form respective raised surface features on the second surface of the tray.

5 more elements

An air filter, comprising:

a filter flange comprising a tray having a lower clamping surface, a second surface opposite the lower clamping surface, and an upwardly-projecting edge surrounding the second surface of the tray, wherein the filter flange forms a central aperture;
an end cap;
a filter element located between the lower clamping surface of the filter flange and the end cap;
and
a gasket concentric with the central aperture and located inward of the upwardly-projecting edge of the tray;
wherein:
a first lateral side portion of the lower clamping surface of the filter flange includes a first clamping depression and a second clamping depression,
a second lateral side portion of the lower clamping surface of the filter flange includes a third clamping depression and a fourth clamping depression, and
the first clamping depression forms a first raised surface feature on the second surface of the tray, the second clamping depression forms a second raised surface feature on the second surface of the tray, the third clamping depression forms a third raised surface feature on the second surface of the tray, and the fourth clamping depression forms a fourth raised surface feature on the second surface of the tray.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/205,111Filed 18 Mar 2021
Priority: 22 Feb 2018
Published: 29 Jul 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

B01D 46/4227
Auxiliary equipment or operation thereof: manipulating filters or filter elements, e.g. handles or extracting tools
B01D 46/0005
Casings; Housings; Frame constructions: mounting of filtering elements within casings, housings or frames
B01D 46/2411
Characterised by the physical shape or structure of the filtering element: filter cartridges
B01D 46/2414
Filter cartridges: end caps including additional functions or special forms

Family

Application15/902,006Division · filed 22 Feb 2018
Application16/775,647Continuation · filed 29 Jan 2020
Application17/205,111Continuation
Application16/775,647Division
US 10,821,391 B2Related patent
US 11,000,793 B2Related patent
US 11,731,069 B2Related patent
US 2019/0255476 A1Published application
US 2020/0164300 A1Published application
US 2021/0229018 A1This patent

From the US filing history. Foreign family members aren’t listed.