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US 4,905,366 AGranted
Method of installing a positive bearing housing seal
AssigneeGits Bros. Mfg. Co.
InventorDale J. Warner
Life of this patent
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AssigneeGits Bros. Mfg. Co.
InventorDale J. Warner
Estimating the term…
A positive bearing housing seal is provided in which the stationary seal member, and possibly a reducer having the same peripheral shape of the stationary seal member, is employed for installing and aligning the stationary seal member and the rotary seal member with respect to the shaft. A flat surface of the stationary seal member is moved against a flat surface of the rotary seal member until the flat surface of the stationary seal member engages a machine wall or, if a reducer is used, a flat surface of the reducer. The shaft is then rotated to establish squareness. The stationary seal member is then removed from the shaft, reversed in the axial direction, and reinstalled such that a flexible extension thereof, including a peripheral bead, is inserted into engagement with the inner surface of an annular opening in the machine wall or an annular opening in the reducer.
A method of installing a positive bearing housing seal with respect to a rotary shaft extending through an annular opening in a machine wall, said annular opening including an inner surface, comprising the steps of:
A method of installing a positive bearing housing seal with respect to a rotary shaft extending through an annular opening in a machine wall, comprising the steps of:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Mounting of the seal: pre-assembled seals, e.g. cartridge seals
Method of mechanical manufacture: during simulated operation or operating conditions
Method of mechanical manufacture: shaping mating parts for reassembly in different positions
Elastic joining of parts: confining elastic part in socket
Term ended 23 Jun 2008 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
The present invention relates to a positive bearing housing seal which eliminates packing and O-rings between the seal and the machine housing and relates to a method for installing such a positive bearing housing seal.
The object of the invention is to provide a positive bearing housing seal which eliminates the necessity for packing O-rings between the seal and the machine housing and which also provides a method for installing such a bearing housing seal for squareness with respect to the rotary shaft of the machine.
The above object is achieved by providing a positive bearing housing seal which comprises six basic parts and, in one embodiment, a seventh basic part as a reducer, for sealing a bearing and providing squareness with respect to the machine and the shaft.
Other objects, features and advantages of the invention, its organization, construction and operation will be best understood from the following description taken in conjunction with the accompanying drawing on which:
FIG. 1 is a perspective sectional view of a positive bearing housing seal constructed in accordance with the present invention;
FIG. 2 is an enlarged sectional view taken at the upper end of the sectional view of FIG. 1; and
Referring first to FIGS. 1 and 2, a positive bearing housing seal, constructed in accordance with the present invention, is generally illustrated at 10 as comprising a housing 14, which may be made of aluminum 6061, and including an internal groove 17 which houses an O-ring 16 which engages a stationary seal member 18. The O-ring may be Viton.RTM., while the stationary seal member may be constructed of Carbon P 658 RC material.
As will be appreciated below, the housing 14 is urged against the stationary seal member 18 by way of a wave spring 22 which may be a 17-7 PH/C stainless steel material.
The stationary seal member 18 is urged against a rotary seal member 24 mounted on the shaft 20 which includes an internal groove 25 which mounts a gasket 26, the gasket 26 also possibly being a Viton.RTM. material.