Pressure indicator for tires
OwnerEarl W. Gabrielinventor
Life of this patent
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Abstract
A pressure indicator for tires comprised of a lower cylindrical housing dimensioned for removable coupling with a valve stem of a tire. A flexible diaphragm is disposed within the lower cylindrical housing. An upper cylindrical housing is coupled with the lower cylindrical housing. A T-shaped indicating pin extends through the upper cylindrical housing to couple with the flexible diaphragm. A tri-level spring is coupled around the T-shaped indicating pin. A magnifying dome couples with the upper cylindrical housing. The magnifying dome has an indicating chart positioned therein.
Claims7
A pressure indicator for tires for indicating pressure of a tire through a housing allowing a user to easily read tire pressure within a given tire comprising, in combination:
- a lower cylindrical housing having an internally threaded open lower end and an internally threaded open upper end, the internally threaded open lower end dimensioned for removable coupling with a valve stem of a tire, the open lower end having an air receiving portion therein, the air receiving portion having an O-ring secured therearound;
- a flexible diaphragm disposed within the internally threaded open upper end of the lower cylindrical housing, the diaphragm having a threaded receiving aperture secured to a central portion thereof;
- an upper cylindrical housing having an externally threaded open lower end and an internally threaded upper end, the upper cylindrical housing having an aperture formed through a central portion thereof, the externally threaded lower end coupled with the internally threaded open upper end of the lower cylindrical housing with the aperture aligned with the threaded receiving aperture of the flexible diaphragm;
- a T-shaped indicating pin having a lower vertical end portion extending through the aperture in the upper cylindrical housing to couple with the threaded receiving aperture of the flexible diaphragm, the T-shaped indicating pin having an upper horizontal end extending upwardly from the upper cylindrical housing;
- a tri-level spring coupled around the lower vertical end of the T-shaped indicating pin and positioned within the open lower end of the upper cylindrical housing, a lower end of the spring abuts a wall portion of the upper cylindrical housing and an upper end of said spring abuts, the threaded receiving aperture to bias the diaphragm downwardly with respect to the lower cylindrical housing;
- a magnifying dome having an externally threaded open lower end adapted for coupling with the internally threaded upper end of the upper cylindrical housing, the magnifying dome receiving the upper horizontal end of the T-shaped indicating pin therein, the magnifying dome having an indicating chart positioned therein, the magnifying dome having an aperture formed through an upper end thereof.
A pressure indicator for tires comprising:
- a lower cylindrical housing dimensioned for removable coupling with a valve stem of a tire, the lower housing having an air receiving portion;
- a flexible diaphragm disposed within the lower cylindrical housing;
- an upper cylindrical housing coupled with the lower cylindrical housing;
- a T-shaped indicating pin extending through the upper cylindrical housing to couple with the flexible diaphragm;
- a tri-level spring coupled around the T-shaped indicating pin with a lower end abutting a wall portion of the upper cylindrical housing and the diaphragm to bias the diaphragm away from the wall portion;
- a magnifying dome coupling with the upper cylindrical housing and receiving an upper portion of the T-shaped pin therein, the magnifying dome having an indicating chart positioned therein for selectively aligning with the upper portion of the pin.
Dependencies are inferred from the claim text.