Oil filter drain tool
View Patent ↗A fluid filter draining device is shown for draining fluid from a fluid container, such as an oil filter, in a controlled manner. An engagement ring is frictionally engaged on the outer sidewalls of a fluid filter. The engagement ring carries a threaded screw with a sharpened tip and a channel communicating between an opening at a forward end of the screw and a rear region of the threaded screw. When the screw is turned it penetrates the sidewall of the fluid container and enters the fluid containing cavity of the filter. Fluid is drained through the channel in the drill tip and out through an associated swivel hose connection and swivel hose to a collection container.
1. A fluid filter draining device which allows hot fluid to be removed from the filter in a controlled manner, the fluid filter having a filter body with cylindrical sidewalls defining a fluid filled interior region there between, the fluid filter draining device comprising:
a cylindrical engagement ring having an exterior sidewall and an interior sidewall defining an inner circumferential area which is selectively sized to frictionally engage the filter body cylindrical sidewalls for positioning the engagement ring on the filter to be drained, the engagement ring also having a threaded access port at one circumferential location thereon;
a sharpened drill tip surrounded by a threaded shaft, the threaded shaft being sized to be threadedly received within the threaded access port of the engagement ring, the drill tip having an inner extent and an outer extent, and a longitudinal internal channel which communicates between the inner and outer extents thereof;
a turning knob having a central bore for receiving the drill tip and associated threaded shaft, the knob having an inner face and an outer face separated by a predetermined thickness which is selected to allow the drill tip to extend beyond the knob inner face when the drill tip is received within the central bore of the turning knob, the drill tip and threaded shaft being fixed within the central bore of the knob, whereby turning the knob by hand causes the drill tip to advance through the threaded access port of the engagement ring and into the inner circumferential area to thereby penetrate the filter body sidewall; and
wherein the central bore of the turning knob also receives a swivel hose fitting therein, the fitting having an inner extent received within the central bore and an outer extent which extends beyond the outer face of the turning knob for receiving and engaging a swivel hose, the swivel hose fitting also having a central bore which communicates with the longitudinal internal channel of the drill tip, whereby fluid drained from the filter can be drawn out through the swivel hose fitting and an associated swivel hose.
2. The fluid filter draining device of claim 1 , wherein the central bore of the engagement ring has a gasket receiving recess formed therein, and wherein an O-ring seal fits within the recess during the sliding process to position tool onto filter, then the O-ring is positioned onto the shoulder of the drill tip for forming a fluid tight seal between the threaded shaft, drill tip and the filter cylindrical sidewall during the filter draining operation, when a drill is engaged.
3. The filter draining device of claim 2 , wherein the engagement ring and turning knob are formed from a nylon plastic material.
4. The fluid filter draining device of claim 3 , wherein the swivel hose has an on/off valve associated therewith for controlling the flow of fluid from the filter during the draining operation.
5. The fluid filter draining device of claim 4 , wherein the device is adapted for use in draining fluid from fluid filters which are still positioned on machines and motors.
6. The fluid filter draining device of claim 5 , wherein the fluid container is an oil filter adapted to be positioned on a motor.
7. A method of draining hot fluid from a fluid filter in a controlled manner, the fluid filter having a filter body with cylindrical sidewalls defining a fluid filled interior region there between, the method comprising the steps of:
providing a cylindrical engagement ring having an exterior sidewall and an interior sidewall defining an inner circumferential area which is selectively sized to frictionally engage the filter body cylindrical sidewalls for positioning the engagement ring on the filter to be drained, the engagement ring also having a threaded access port at one circumferential location thereon;
positioning the engagement ring on the cylindrical sidewall of the filter;
providing a sharpened and shaped drill tip surrounded by a threaded shaft and positioning the threaded shaft of the drill tip within the threaded access port of the engagement ring, the threaded shaft being threadedly received within the threaded access port of the engagement ring, the drill tip having an inner extent and an outer extent, and a longitudinal internal channel which communicates between the inner and outer extents thereof;
providing a turning knob which cooperates with the drill tip and engagement ring, the turning knob having a central bore for receiving the drill ti and associated threaded shaft the knob having an inner face and an outer face separated by a predetermined thickness;
locating the drill tip and associated threaded shaft within the central bore at a location which is selected to allow the drill tip to extend beyond the knob inner face when the drill tip is received within the central bore of the turning knob;
fixing the drill tip and threaded shaft within the central bore of the knob, whereby turning the knob by hand causes the drill tip to advance through the threaded access port of the engagement ring and into the inner circumferential area to thereby penetrate the filter body sidewall;
providing the central bore of the turning knob with a swivel hose fitting, the fitting having an inner extent received within the central bore and an outer extent which extends beyond the outer face of the turning knob for receiving and engaging a swivel hose, the swivel hose fitting also having a central bore which communicates with the longitudinal internal channel of the drill tip, whereby fluid drained from the filter can be drawn out through the swivel hose fitting and an associated swivel hose
mounting the engagement ring on a fluid filter containing hot fluid;
attaching a hose to the swivel hose fitting;
turning the turning knob so that the drill tip penetrates the cylindrical sidewall of the fluid filter; and
draining off hot fluid from the fluid filter through the swivel hose fitting and attached hose.
8. The method of claim 7 , further comprising the steps of forming a gasket receiving recess in the central bore of the engagement ring and positioning an O-ring seal within the recess during the sliding process to position the tool onto the filter;
wherein the O-ring is subsequently positioned onto the shoulder of the drill tip for forming a fluid tight seal between the threaded shaft, drill tip and the filter cylindrical sidewall during the filter draining operation.
9. The method of claim 8 , wherein the O-ring seal is initially located on an intersection between an outer extent of the drill tip and the threaded shaft, and wherein the gasket receiving recess is provided to trap and locate the O-ring seal during drilling operations.
10. The method of claim 9 , wherein the O-ring is located within the gasket receiving recess when the threaded shaft is retracted back from a position in which the engagement ring is attached upon the filter cannister sidewall for drilling operations to begin.