Lubrication – Automobile crank and gear case service
Patent
1994-05-03
1995-02-07
Denion, Thomas E.
Lubrication
Automobile crank and gear case service
222526, 222527, 222529, 56 115, 141 98, F16C 314
Patent
active
053868811
ABSTRACT:
A lawnmower engine oil sump drain extension apparatus, for a lawnmower having a blade housing and an engine having an oil sump, has an oil sump drain elbow tube threadingly connected into a drain hole of the oil sump. An outer extension tube is threadingly connected to the elbow tube. The outer extension tube extends through a port in the blade housing and into a blade housing extension tube receiving chamber in the blade housing. A locking member, threadingly connects to the outer extension tube, to secure the outer extension tube to the blade housing. An inner extension tube is telescopingly placed within the outer extension tube. There is at least one sealing member, having a replaceable resilient seal thereon, on the inner extension tube to provide a seal between the inner extension tube and the outer extension tube. There is a stop member on the inner extension tube. There is an inner extension tube locking member, threadingly connected to the outer extension tube and that has a resilient gripping washer placed therein. The sealing member has a first ringlike protrusion with a removable and replaceable resilient seal thereon. The stop member has a second ringlike protrusion that has a removable and replaceable resilient seal thereon. There is an inner extension support bracket and extension lock member, connected to the inner extension tube, releasably connected to a receiving bracket on a wall of the blade housing extension tube receiving chamber.
REFERENCES:
patent: 675548 (1901-06-01), Long
patent: 1528027 (1925-03-01), Peterson
patent: 4403466 (1983-09-01), Tillotson et al.
patent: 4806981 (1978-05-01), Mitsui
patent: 4977978 (1990-12-01), Batrice
patent: 4986777 (1991-01-01), Preston
Baker David L.
Denion Thomas E.
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