Tools – Receptacle closure remover – Gripping type
Patent
1995-05-26
1996-10-01
Smith, James G.
Tools
Receptacle closure remover
Gripping type
81125, B67B 714
Patent
active
055602690
ABSTRACT:
A wrench for use with a seized engine oil filter typically employed in a mechanical environment in which a conventional threaded oil filter cannot be removed from an oil lubricated engine. The oil filter wrench comprises a cap-shaped housing including a planar top surface and a wall formed orthogonal to the perimeter of the top surface. A plurality of flat keyed edges formed on an interior surface of the wall are provided for engaging a housing of the oil filter. Several threaded shaft and nut assemblies are mounted to the wall for piercing said oil filter housing. The threaded shaft and nut assemblies lock the cap-shaped housing to the oil filter for maximizing the torque on the oil filter when the cap-shaped housing is rotated. A socket receptacle formed in the planar top surface enables rotation of the cap-shaped housing. In a preferred embodiment, the flat keyed edges formed on the interior surface of the wall enable the cap-shaped housing to be fitted over the edges of a conventional oil filter. The threaded shafts are then advanced so as to pierce and lock the oil filter housing to the cap-shaped housing. The cap-shaped housing is then forcibly rotated by a tool fitted into the socket receptacle. In an alternative embodiment, the threaded shaft and nut assemblies are secured to a metallic band pivotally attached to a handle. After the band has been tightened about the oil filter housing, the threaded shafts are advanced so as to pierce and lock the oil filter housing to the band. The handle is then rotated to maximize torque on the seized oil filter.
REFERENCES:
patent: 3094022 (1963-06-01), Young
patent: 3853026 (1974-12-01), Rhodes
patent: 4607547 (1986-08-01), Martus
patent: 5123310 (1992-06-01), McManus
Christopher John S.
Smith James G.
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