A fluid level measuring device, also referred to as a dipstick, for measuring the fluid level in a fluid reservoir or tank, such as an oil pan or transmission reservoir in an internal combustion engine. The fluid level measuring device includes a stationary tube onto which lugs can be directly attac
A fluid level measuring device, also referred to as a dipstick, for measuring the fluid level in a fluid reservoir or tank, such as an oil pan or transmission reservoir in an internal combustion engine. The fluid level measuring device includes a stationary tube onto which lugs can be directly attached. The dipstick assembly includes a fluid level indicator measuring blade attached to an elongated shaft that is molded into a plastic handle assembly. The plastic handle assembly includes a bayonet type locking mechanism for locking the handle to the stationary tube assembly. A compressible seal forms a pressurized seal between the stationary tube assembly and the handle.
대표청구항▼
The following is claimed: 1. A fluid measuring apparatus comprising: a shaft comprising first and second ends and wherein a fluid level indicator blade is associated with a first end of the shaft or said first end of the shaft comprises a fluid level indicator, a tube with an open end for receiving
The following is claimed: 1. A fluid measuring apparatus comprising: a shaft comprising first and second ends and wherein a fluid level indicator blade is associated with a first end of the shaft or said first end of the shaft comprises a fluid level indicator, a tube with an open end for receiving at least one end of the shaft and at least one lug directly connected to the tube, a handle associated with the second end of the shaft and comprising at least one slot that comprises an axial portion generally aligned with the direction of insertion of the shaft into the tube and a generally transverse portion, wherein the axial portion of said at least one slot is open and engages said at least one lug and the transverse portion of said slot terminates in a locking seat, and; a seal associated with the handle that engages at least the open end face of the tube when said lug engages said locking seat. 2. The apparatus of claim 1 wherein a second end of said tube is associated with a fitting for engaging a fluid reservoir. 3. The apparatus of claim 2 wherein said fitting comprises a threaded fitting. 4. The apparatus of claim 1 wherein said at least one lug comprises an outwardly extending lug. 5. The apparatus of claim 1 wherein said seal comprises a compressible member that urges the handle and tube into a locked position that is achieved when said at least one lug engages the locking seat and wherein the locking seat has a larger diameter than said at least one slot. 6. A fluid measuring apparatus for an engine or a transmission reservoir comprising: a wire shaft comprising first and second ends wherein said first end of the shaft is connected to a fluid level indicator, a non-linear tube comprising a first end having at least one lug with an enlarged end portion and directly attached to the tube, and a second end of the tube comprising a fitting for engaging the reservoir, a handle connected to the second end of the shaft and comprising at least one curvilinear slot having an axial portion generally aligned with the direction of insertion of the shaft into the tube wherein the slot terminates in a locking seat having an enlarged diameter relative to the at least one slot, wherein one end of said at least one slot is open and engages said at least one lug, and; a seal connected to the handle that engages at least the open end face of the tube. 7. The apparatus of claim 6 wherein said at least one lug comprises an outwardly extending lug. 8. The apparatus of claim 6 wherein the shaft is rotatable relative to the handle. 9. The apparatus of claim 6 wherein said seal comprises a compressible member that urges the handle and tube into a locked position when said at least one lug engages the locking seat. 10. The apparatus of claim 6 wherein the fitting defines a knurled region for engaging the tube and defines at least one groove for engaging an opening into the engine reservoir. 11. The fluid measuring apparatus of claim 6 wherein the curvilinear slot comprises an axial portion generally aligned with the direction of insertion of the shaft into the tube and a generally transverse portion. 12. A method for making a fluid level indicator comprising: providing a shaft comprising first and second ends, connecting a fluid level indicator blade to the first end of the shaft, providing a tube comprising first and second ends; wherein the first end is open for receiving at least one end of the shaft, connecting at least one lug directly to the tube, connecting a fitting to an interior surface of the tube by inserting said fitting into the second end of the tube and reducing the diameter of the tube, providing a handle comprising at least one slot, connecting the second end of the shaft to the handle, and installing a seal in the base of the handle. 13. The method of claim 12 wherein said connecting at least one lug directly to the tube comprises welding, installing self-clinching lugs and drilling and fastening. 14. The method of claim 12 wherein said connecting said shaft to the handle comprises at least one method selected from the group consisting of overmolding, pinning or gluing. 15. The method of claim 12 wherein said at least one slot comprises an axial portion generally aligned with the direction of insertion of the shaft into the tube and a generally transverse portion, wherein one end of said at least one slot is open and dimensioned to engage said at least one lug and another end of said slot terminates in a locking seat, and the seal is oriented such that it engages at least the open end face of the tube when said lug engages said locking seat. 16. A fluid measuring apparatus for an engine or a transmission reservoir comprising: a shaft comprising first and second ends wherein the first end of the shaft comprises a fluid level indicator, a tube comprising a first end wherein at least one lug is provided directly on or in the tube, and a second end of the tube is connected to a fitting for engaging the reservoir, a handle connected to the second end of the shaft and comprising at least one curvilinear slot wherein one end of the slot is open for receiving said at least one lug and the slot terminates in a locking seat, and; a compressible member connected to the handle that engages at least the open end face of the tube and is compressed when the at least one lug engages the locking seat. 17. The fluid measuring apparatus of claim 16 wherein the shaft is rotatable relative to the handle. 18. The fluid measuring apparatus of claim 16 wherein the lugs extend outwardly or inwardly from the tube. 19. The fluid measuring apparatus of claim 16 wherein the engine fitting is staked into the tube. 20. A fluid measuring apparatus comprising: a wire shaft comprising first and second ends wherein said first end of the shaft comprises a fluid level indicator, a non-linear tube comprising a first end having at least one lug directly connected to the tube, and a second end of the tube connected to a staked fitting, a handle connected to the second end of the shaft and comprising at least slot that comprises an axial portion generally aligned with the direction of insertion of the shaft into the tube and a generally transverse portion, wherein the axial portion of said at least one slot is open and the transverse portion of said slot terminates in a locking seat having an enlarged diameter relative to the slot, and; a seal connected to the handle that engages at least the open end face of the tube wherein said seal comprises a compressible member that urges the handle and tube into a locked position that is achieved when said at least one lug engages the locking seat. 21. The apparatus of claim 20 wherein the lug extends outwardly from the tube. 22. A fluid measuring apparatus for an engine or a transmission comprising: a shaft comprising first and second ends wherein said first end of the shaft comprises or is connected to a fluid level indicator, a metallic tube comprising a first end having at least one lug directly connected to the metallic tube, and a second end of the metallic tube connected to a fitting, a handle connected to the second end of the shaft and comprising at least slot that comprises an axial portion generally aligned with the direction of insertion of the shaft into the metallic tube and a generally transverse portion, wherein the axial portion of said at least one slot is open and the transverse portion of said slot terminates in a locking seat having an enlarged diameter relative to the slot, and; a compressible member connected to the handle that engages the metallic tube wherein the compressible member urges the handle and metallic tube into a locked position that is achieved when said at least one lug engages the locking seat. 23. The apparatus of claim 22 wherein the lug comprises an outwardly extending lug that is directly connected to the metallic tube by welding.
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이 특허에 인용된 특허 (60)
Lalevee ; Sr. Russell R. (P.O. Box 338 Chatham MA 02633), Adjustable dip stick guide.
Sibley Barry (Site 16 A ; Box 9 ; R.R. #1 Enfield Nova Scotia B0N 1N0 CAX) Char Aka L. (Apt. 315 ; 15 Langebrae Dr. Halifax N.S. B3M 3W5 CAX), Leak-proof cylindrical container for the transport of diagnostic specimens or dangerous substances.
Braun Daniel E. (Brookfield WI) Bruener Patrick J. (West Allis WI), Means for facilitating checking and replenishment of crankcase oil in a small engine.
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