Browse Prior Art Database

Seal Puller

IP.com Disclosure Number: IPCOM000175566D
Publication Date: 2008-Oct-14
Document File: 5 page(s) / 28K

Publishing Venue

The IP.com Prior Art Database

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 53% of the total text.

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TECHNICAL FIELD
[0001] The present invention relates to a device for removing a seal from the recessed interior of a housing.

BRIEF DESCRIPTION OF THE DRAWINGS
[0002] Figure 1 is a schematic side view of one embodiment of a seal puller, consistent with the present invention;

[0003] Figure 2 is schematic side view of one embodiment of a seal puller onto which a seal has been retentively captured, consistent with the present invention;

[0004] Figure 3 is schematic side view of one of the semi- circular engagement members, consistent with the present invention; and

[0005] Figure 4 is schematic end face view of the semi- circular engagement members coupled by pins and urged apart by springs, consistent with the present invention.

DESCRIPTION
[0006] The seal puller 10 is configured to remove an annular seal from the interior of a cavity in a housing. For one envisioned use, the seal puller 10 may be advantageously utilized to reach deep into a transmission pump housing cavity and retrieve a seal or seals that may stick within the transmission pump housing. This is merely one example, it should be apparent to the skilled in the

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SEAL PULLER

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3046

art that this seal puller may be advantageously applied to remove many types of annular seals from various types of machinery and equipment housings.

[0007] The seal puller 10 includes a cylindrical shaft 16 provided with a reduced diameter cylindrical portion 22 positioned proximate to a first end 40 of the shaft 16. Two semi-circular engagement members 12 and 14 are provided positioned within and retained within the reduced diameter portion 22.

[0008] Each semi-circular engagement member 12 and 14 has a recess 28 located at opposing end faces 32 configured to slideably and retentively receive a pin member 26 therein. The semi-circular engagement members are slideably received upon the pin members 26. On each pin member 26, a spring 30 is positioned circumferentially about the pin 26 and configured to urge the opposing semi-circular engagement members 12, 14 to radially separate about the shaft 16 by applying force to the opposing end faces 32. The pins 26 and recesses 28 in each semi-circular engagement member 12, 14 is configured to adapted to limit how far apart the semi-circular engagement members 12, 14 can radially separate, thereby maintaining the semi-circular engagement members 12, 14 retentively held within the reduced diameter cylindrical portion 22 of the shaft 16.

[0009] When a compression force is not applied to the opposing semi- circular engagement members 12, 14, the opposing semi-circular engagement members 12, 14 are held spaced apart in a first position...