Land vehicles: wheels and axles – Wheel – Hub
Patent
1990-10-09
1991-10-08
Stormer, Russell D.
Land vehicles: wheels and axles
Wheel
Hub
301108TW, 184 451, F16C 124, B60B 2700
Patent
active
050548590
ABSTRACT:
A grease pressurizing hubcap for a wheel hub including a barrel press fit in the hub. A plastic piston disposed in the barrel and movable between inner and outer annular abutments in the barrel, the outer abutment being formed by an inward turned, reverse bent flange and the inner abutment being formed by a polygon-shaped split ring set in an annular groove in the interior of the barrel. A compression spring acting between the piston and the outer annular abutment normally pressing the piston to an inner position. A lubricating fitting set in the piston to fill the barrel on the inner side of the piston and to act against the compression spring to pressurize grease in the hub. A colored annular outer flange on the piston withdrawn into the barrel in the absence of pressurized grease and extending outwardly from the barrel in the presence of pressurized grease to visually indicate the grease pressure level conditions in the hub. A plurality of pressure relief openings through the piston and a spring disc covering the pressure relief openings and held in place by the lubricating fitting, the disc permitting escape of grease through the openings in over-pressurization conditions. A dust cap is fitted on the outer end of the piston.
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Red Eye Bearing Watch Information Sheet, Red Eye, Inc., no date.
Bearing Buddy Information Pamphlet, Unique Functional Products, no date.
Bowen Duane C.
Stormer Russell D.
Unique Functional Products
LandOfFree
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