Instant reading oil dipstick improvements
OwnerJohn Anderson Armisteadinventor
Life of this patent
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Abstract
Instant Reading Oil Dipstick Improvements is a near universal design with most assembly done by the manufacturer. The customers can easily adapt such to match their existing dipstick geometry by pushing the adjustable parts to the correct location, where they will remain. The air valve is within a single, machined brass cone that adapts to the metal tube and seals in the engine vacuum. A new tubular plastic air seal around the wire handle increases reliability. And a cone shaped rubber squeegee will automatically remove oil from the outside of the tubing as the dipstick is withdrawn from the crankcase.
Claims8
An instant reading automotive oil dipstick assembly having a slide-actuated air valve which vents or seals a translucent fluoroplastic tubing that is located within a machined brass cone that adapts to the engine's metal dipstick tubing size, and seals in the engine vacuum airtight, facilitated by having a short, cylindrical plastic tubing section of a soft formulation receive one end of a looped wire handle, and by being compressed against the fluoroplastic tubing wall, forms a dependable air seal, as well as stops the flow of cyanoacrylate gel glue that would have tended to flow too freely down into the fluoroplastic tubing, with such assembly allowing the easy reading of the oil level by automatically extracting a representative slug of oil when the dipstick is lifted out.
Dependencies are inferred from the claim text.