Publication Date: 2008-Oct-14
The IP.com Prior Art Database
 The present invention relates to a device for removing a seal from the recessed interior of a housing.
BRIEF DESCRIPTION OF THE DRAWINGS
 Figure 1 is a schematic side view of one embodiment of a seal puller, consistent with the present invention;
 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;
 Figure 3 is schematic side view of one of the semi- circular engagement members, consistent with the present invention; and
 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.
 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
art that this seal puller may be advantageously applied to remove many types of annular seals from various types of machinery and equipment housings.
 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.
 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.
 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...