Venting device, particularly for fluid-storing reservoirs...

Details Venting device, particularly for fluid-storing reservoirs... Venting device, particularly for fluid-storing reservoirs...

2007-05-08

2007-05-08

Maust, Timothy L. (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Filling means with receiver or receiver coacting means

Receiver with plural compartments or openings

C141S051000, C141S325000, C220S746000, C220S303000

Reexamination Certificate

active

10528826

ABSTRACT:
A venting device, particularly for fluid storing reservoirs such as tanks, comprising a connecting part for establishing an air-conducting and/or fluid-conducting connection to the inside of the reservoir and comprising a closing part, which can be removed from the connecting part and which is provided, in particular, in the form of a closure cap. When the closure cap is fastened, at least one leakage point in the form of an air exchange opening exists between the closure cap and the connecting part. By virtue of the fact that a labyrinth-like seal effectively seals the respective leakage point at least from penetrants such as water and/or cleaning chemicals while not impairing an air exchange for the actual venting, the system of seal passages inside the labyrinth seal prevents the unwanted damage causing entry of the respective penetrant, also in the form of dirt or dust, into the reservoir or tank interior.

REFERENCES:
patent: 4877146 (1989-10-01), Harris
patent: 5327946 (1994-07-01), Perkins
patent: 5507324 (1996-04-01), Whitley, II et al.
patent: 6866056 (2005-03-01), Scott
patent: 1 394 015 (1975-05-01), None

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