US Patent: 2,844,393
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| Shaft Seal With Radially Compacting Sealing Surfaces
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Patentee:
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| Hans Jensen (exact or similar names) - Chicago, Cook County, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 12, 1954 |
| Granted: |
Jul. 22, 1958 |
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Joel Havens
"Vintage Machinery" entry for Gits Bros. Mfg. Co.
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Description: |
| Claim:
A shaft seal including a pair of coaxial rings having means defining relatively rotatable sealingly engageable annular surfaces, a support member for carrying one of said rings and including a cylindrical wall and a radially extending wall, a radial rigid surface on said one ring axially facing said radial wall of the support member and a cylindrical surface facing said cylindrical wall of the support member, and means for providing a fluid seal between said support and said one ring for allowing axial movement of said ring relative to said cylindrical wall to maintain said annular surfaces in pressure engagement, comprising first and second annular washers of heat-resistant resiliently deformable material having annular edge portions adjacent said cylindrical wall of said support member and opposite annular edge portions adjacent said cylindrical surface of said one ring, a third annular washer of relatively highly deformable material between said first and second washers and having an annular edge portion sealingly engaged with said cylindrical wall and an opposite annular edge portion sealingly engaged with said cylindrical surface, a fourth washer of rigid material in axial facing relation to said second washer, said first washer axially facing said radial surface of said one ring, and spring means acting between said radially extending Wall of said support and said fourth washer for squeezing said first, second and third washers between the rigid fourth washer and said rigid radial surface on said one ring for exerting squeezing forces on said first and second washers whereby the resilient washers will evenly transmit axial pressure to the third washer between them and force the edges thereof into pressure engagement with said cylindrical wall and cylindrical surface. |
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