F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
123/257
F02B 77/08 (2006.01)
Patent
CA 1116964
-12- Combined Dipstick Breather Tube Abstract A combined dipstick-breather tube device for use in measuring the level of a body of liquid in a housing wherein turbulence may occur in the liquid making it difficult to make an accurate reading of the level thereof by conventional dipstick devices. The device includes an outer dipstick tube having a vent opening adjacent its upper end above the level of liquid in the housing. The dipstick extends downwardly through the tube and further through a tubular guide which serves as a baffle for preventing impingement of liquid passed inwardly through the opening against the dipstick so as to avoid erroneous level readings. The baffle may be defined by a tubular element having integrally formed spacers extending outwardly therefrom into engagement with the dipstick tube wall. The upper spacers provide for flow of gaseous fluids between the upper end of the dipstick tube and the opening and the lower spacer provides for a liquid passage to return liquid back to the body thereof in the lower portion of the housing as a result of such liquid passing inwardly through the vent opening. The dipstick may be provided with a conventional breather cap.
336556
Caterpillar Tractor Co.
Kirby Eades Gale Baker
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