Dispensing – Outlet element operated by pressure of contents – Spring form – resilient or compressible flow controller or...
Patent
1996-11-27
1999-07-27
Shaver, Kevin P.
Dispensing
Outlet element operated by pressure of contents
Spring form, resilient or compressible flow controller or...
222491, B05B 1104
Patent
active
059275685
ABSTRACT:
A dispensing head (102) has at least one dispensing duct (103) for a product to be dispensed, a movable lid (150), and a closing system, permitting fresh air intake, for closing the end portion of the dispensing duct. The closing system is formed by an obturator (105A) made of an elastically deformable material and by at least one seat (115) made of a rigid material. The obturator is in contact with its associated seat when no dispensing takes place, moves away from the said seat by elastic deformation under the thrust of the product to be dispensed, and when the dispensing stops returns by elasticity into a position which permits the renewed air intake. The seat is provided with at least one stop which prevents the obturator from elastically returning into a leakproof position. When the lid is closed, a rigid element of the lid (152) comes to bear on the obturator and causes the latter to return into a leakproof closing position.
REFERENCES:
patent: 3618825 (1971-11-01), Clarke
patent: 4314658 (1982-02-01), Laauwe
patent: 4349134 (1982-09-01), Schuster et al.
patent: 5115950 (1992-05-01), Rohr
Baudin Gilles
de Nervo Stanislas
"L'Oreal"
Shaver Kevin P.
LandOfFree
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