Removal tool for a filter insert of a liquid filter

Patent metadata

Field	Value
Publication number	US-11628547-B2
Application number	US-201816496088-A
Country	US
Kind code	B2
Filing date	Feb 2, 2018
Priority date	Mar 28, 2017
Publication date	Apr 18, 2023
Grant date	Apr 18, 2023

Abstract

A removal tool for a filter insert of a liquid filter. The removal tool includes a body extending along a longitudinal axis. At a distal end, the body includes a first arm and a second arm, the two arms extending essentially in parallel to the longitudinal axis and being spaced apart from one another. The two arms are elastically reversibly deflectable toward one another. A retaining element is situated at the first arm. In an open state of the retaining element, the two arms may be moved toward one another. In a closed state of the retaining element, the retaining element couples the two arms to one another and blocks a movement of the two arms toward one another.

First claim

What is claimed is:

1. A removal tool for a filter insert of a liquid filter, comprising:
a first arm;
a second arm; and
a body extending along a longitudinal axis, at a distal end, wherein the body includes the first arm and the second arm;
wherein the two arms extend essentially in parallel to the longitudinal axis and are spaced apart from one another, and wherein the two arms are elastically reversibly deflectable toward one another, and
wherein a retaining element is situated on the first arm and attached thereto, wherein, in an open state of the retaining element, the two arms are movable toward one another, and wherein in a closed state of the retaining element, the retaining element couples the two arms to one another and blocks a movement of the two arms toward one another,
wherein in the open state, the retaining element is attached to the first arm but is not attached to the second arm.

2. The removal tool of claim 1 , wherein the first arm includes a first hook, the first hook projecting from the first arm essentially transversely to the longitudinal axis, and wherein the second arm includes a second hook, the second hook projecting from the second arm essentially transversely to the longitudinal axis, and wherein the two hooks point in opposite directions.

3. The removal tool of claim 1 , wherein the body has a flat configuration, wherein an overall length of the body is at least 5 times a width of the body, and wherein the width of the body is at least 3 times a thickness of the body.

4. The removal tool of claim 1 , wherein the retaining element is configured as one of a bracket, a catch, or a safety catch.

5. The removal tool of claim 1 , wherein the retaining element is situated at the first arm so that it projects forwardly from the body in the open state and encloses an angle of maximum 45° to a transverse direction, wherein at least one of the transverse direction extends perpendicularly to the longitudinal axis or the retaining element is situated on the first arm so that it extends in the transverse direction between the two arms in the closed state.

6. The removal tool of claim 1 , wherein the retaining element, in the closed state, together with the second arm forms a detachable connection, and wherein the connection is one of form-locked, force-fit, or frictionally engaged.

7. The removal tool of claim 1 , wherein at least one of a first length of the first arm from its first root at the body up to its first free end is at least 2.5 times a maximum distance between the two arms, or a second length of the second arm from its second root on the body up to its second free end is at least 3 times a maximum distance between the two arms.

8. The removal tool of claim 1 , wherein at least one of a first length of the first arm from its first root at the body up to its first free end is at least 3 times a maximum distance between the two arms, or a second length of the second arm from its second root on the body up to its second free end is at least 3 times a maximum distance between the two arms.

9. A removal tool for a filter insert of a liquid filter, comprising:
a first arm;
a second arm; and
a body extending along a longitudinal axis, at a distal end, wherein the body includes the first arm and the second arm;
wherein the two arms extend essentially in parallel to the longitudinal axis and are spaced apart from one another, and wherein the two arms are elastically reversibly deflectable toward one another, and
wherein a retaining element is situated on the first arm, wherein, in an open state of the retaining element, the two arms are movable toward one another, and wherein in a closed state of the retaining element, the retaining element couples the two arms to one another and blocks a movement of the two arms toward one another,
wherein the retaining element is attached to the first arm with a swivel joint.

10. The removal tool of claim 9 , wherein the swivel joint includes one of an integral joint, a hinge, or a snap hinge.

11. A method for removing a filter insert of a liquid filter, the method comprising:
providing a removal tool, wherein the removal tool includes a first arm, a second arm, and a body extending along a longitudinal axis, at a distal end, wherein the body includes the first arm and the second arm, wherein the two arms extend essentially in parallel to the longitudinal axis and are spaced apart from one another, and wherein the two arms are elastically reversibly deflectable toward one another, and wherein a retaining element is situated on the first arm, wherein, in an open state of the retaining element, the two arms are movable toward one another, and wherein in a closed state of the retaining element, the retaining element couples the two arms to one another and blocks a movement of the two arms toward one another, and wherein the liquid filter, in a mounted state, includes a housing, at least one liquid inlet, at least one liquid outlet and the filter insert, the filter insert including a filter element extending along a longitudinal axis, a first end cap and a second end cap, the filter element being situated between the first end cap and the second end cap, as viewed along the longitudinal axis, the first end cap including a first channel-like opening, the second end cap including a second channel-like opening;
setting the removal tool into an open state, the two arms of the removal tool being elastically reversibly movable toward one another in the open state;
inserting the removal tool into the filter insert along an inserting direction so that the distal end of the removal tool is fed completely through the second opening and through the first opening;
setting the removal tool into a removal state by displacing the retaining element so that the retaining element is situated between the first arm and the second arm and a movement of the two arms toward one another is blocked during an application of a force onto one of the arms toward the other arm; and
displacing the removal tool counter to the inserting direction so that the filter insert is removed from the housing together with the removal tool.

Assignees

• Bosch Gmbh Robert

Inventors

• Balleste Izuzquiza Elena
• Arias Arias Jose Luis

Classifications

• Y02T10/12

  Improving ICE efficiencies · CPC title

• B01D29/96

  in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters (B01D29/09, B01D29/70 take precedence) · CPC title

• B25B27/06 Primary

  inserting or withdrawing sleeves or bearing races · CPC title

• B25B27/02 Primary

  for connecting objects by press fit or detaching same {(B25D1/16 takes precedence)} · CPC title

• B01D2201/24

  Tools used for the removal of filters · CPC title