US 9,517,552 B2Granted

Filter remover

AssigneeKomatsu Ltd.

InventorsMinato Tomuro, Shinya Furuhata, Shouhei Nagasaka, Kozo Okuda, Osamu Okamoto, Yukinori Maeda

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Abstract

A filter remover removes a cylindrical filter element housed in a housing through an opening provided in the housing. The filter remover includes: an attachment portion provided with a screw to be screwed onto the opening; an insert portion that includes a base end integrated with the attachment portion and a tip end in a form of a free end, that is elastically deformable in a radial direction orthogonal to an axial direction of the filter element in conjunction with a movement in the axial direction caused when the attachment portion is screwed, and that is inserted through the opening into a center hole provided in the filter element as the attachment portion is screwed; and an engaging portion that is provided at the tip end and that is engaged with the filter element after the attachment portion is moved for a predetermined amount when the attachment portion is screwed.

Claims7

Dependent claims

A filter remover for removing a cylindrical filter element housed in a housing through an opening provided in the housing, the filter remover comprising:

an attachment portion provided with a screw that is sized to be screwed around the opening of the housing, wherein the screw is a female screw that is provided on an inner circumferential portion of the attachment portion, and wherein the attachment portion is configured to move in an axial direction of the filter element when the attachment portion is screwed around the opening by rotating the attachment portion;
an insert portion that comprises a base end integrated immovably with the attachment portion and a tip end in a form of a free end, wherein the tip end comprises a plurality of arms, wherein the insert portion is elastically deformable in a radial direction orthogonal to the axial direction of the filter element in conjunction with the movement of the attachment portion in the axial direction, and wherein the insert portion is insertable through the opening into a center hole provided in the filter element as the attachment portion is screwed;
an engaging portion that is provided at the tip end of the insert portion and that is adapted to engage with the filter element after the attachment portion is moved for a predetermined amount when the attachment portion is screwed;
and
an adjusting member that is detachably attachable to the insert portion by being inserted between the plurality of arms to adjust the elastic deformability of the insert portion.

2 more elements

A filter remover for removing a cylindrical filter element housed in a housing through an opening provided in the housing, the filter remover comprising:

an attachment portion that comprises a receiving portion for receiving fluid to be filtrated by the filter element;
a screw that is sized to be screwed around the opening of the housing, wherein the screw is a female screw that is provided on an inner circumferential portion of the attachment portion, and wherein the attachment portion is configured to move in an axial direction of the filter element when the screw is screwed around the opening by rotating the attachment portion;
an insert portion having a plurality of arms that comprises a base end integrated immovably with the attachment portion and a tip end in a form of a free end, the insert portion being elastically deformable in a radial direction orthogonal to the axial direction of the filter element in conjunction with the movement in the axial direction, and being insertable through the opening into a center hole provided in the filter element as the attachment portion is screwed;
an engaging portion that is provided at the tip end of the insert portion and that is adapted to engage with the filter element after the attachment portion is moved for a predetermined amount when the attachment portion is screwed;
and
an adjusting member that is detachably attachable to the insert portion by being inserted between the plurality of arms to adjust the elastic deformability of the insert portion, wherein:
the insert portion has a length larger than a length of the filter element in the axial direction;
and
at a position of the attachment portion just before being completely screwed, a distance between an engaging surface of the engaging portion and an engaged portion that is provided near one of end surfaces of the filter element remote at a depth side from the opening is equal to or less than a movable length in the axial direction of the attachment portion when the attachment portion is screwed.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/371,430Filed 25 Dec 2013
Published: US 2015/0174746 A125 Jun 2015
Granted: 13 Dec 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B25B 27/0042
For motor-vehicles: tools for removing or replacing filters or for draining oil; Tools for setting or loosening closure means for radiators,…
B01D 29/21
Arranged for inward flow filtration: with corrugated, folded or wound sheets
B25B 27/023
For connecting objects by press fit or detaching same: using screws
B01D 2201/24
Details relating to filtering apparatus: tools used for the removal of filters

Family

US 2015/0174746 A1Pre-grant publication · published 25 Jun 2015
US 9,517,552 B2This patent

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

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