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US 2007/0170186 A1Published application
Vent cap for oil tanks of machines and the like equipped with splash guard
AssigneeElesa S.p.A.
InventorAlberto Bertani
Life of this patent
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AssigneeElesa S.p.A.
InventorAlberto Bertani
Estimating the term…
The invention concerns a vent cap for oil tanks of machines and motor equipment, comprising a cup (1), equipped with means of engagement (4) with the seat of the tank filler, and a lid (12) mounted on the cup and which snaps thereon. Between the cup (1) and the lid (12) there is a gap allowing the vapour outflow from the tank to the outer environment or viceversa. According to the invention, said lid (12) comprises two cylindrical diaphragms (12b, 12c), concentric to the cap axis and which, in cooperation with the cup (1), form labyrinth means for the flow of vapours and air. Cup (1) also carries a guide (7) supporting a level rod (8), consisting of a central, cylindrical main body (7b), wherefrom ribs (7a) for anchoring to the cup (1) depart. Guide (7) extends, at the top, into two flexible flaps (7c), provided with means of engagement (10) of the rod (8).
Vent cap for oil tanks of machines and motor equipment, of the type comprising a cup (1), equipped with means of engagement (4) with the housing of the tank filler, and a lid (12) mounted on the top of the cup and which snaps thereon, integral in the movement thereof, a gap being provided between the cup (1) and the lid (12) allowing the outflow of the vapours found in said tank or viceversa, characterised in that said lid provides at least two cylindrical diaphragms (12b, 12c), concentric to the cap axis and which, when cooperating with the cup (1), are labyrinth means only for the flow of vapours and air.
Dependencies are inferred from the claim text.