Patents Assigned to MeadWestvaco Calmar S.A.
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Patent number: 8016164Abstract: A low height precompression pump having a piston with a lower outwardly flaring lip seal and an inwardly flaring lip seal rimming a central aperture of the piston, and which may include a first elastic member housed in the cylinder and a second elastic member having an upper bearing point applied directly on the plunger rod above an upper retention cover.Type: GrantFiled: June 14, 2010Date of Patent: September 13, 2011Assignee: MeadWestvaco Calmar, S.A.Inventors: Pere Parés Montaner, Nuria Parés Fernández, legal representative, Victor Ribera Turró, Haydee Martorell Pena
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Patent number: 7837070Abstract: A simplified pump for dispensing fluid substances withdrawn from a container of said substances, comprising a cup-shaped body into which a hollow stem extends, an endpiece of the cup-shaped body, said cup-shaped body presenting a passage, closable by a valve, and a seat for housing one end of a dip tube, a piston, an elastic member and a movable valve for closing the stem cavity, an elongated rod, a first end of which is inserted into and retained in a seat provided at the second end of the cup-shaped body, an intermediate portion of the rod having a cylindrical profile of diameter less than the diameter of the stem cavity into which said rod portion extends, said movable valve for closing the stem cavity comprising a continuous elastic lip projecting from a second end of the rod towards the outside of said cylindrical chamber, said lip being sealedly slidable in contact with the cylindrical surface of the stem cavity.Type: GrantFiled: June 19, 2007Date of Patent: November 23, 2010Assignee: MEADWESTVACO CALMAR S.r.l.Inventor: Andrea Marelli
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Patent number: 7735693Abstract: Low height precompression pump. The pump includes: a cylinder (1) consisting of a pump chamber (3), and an inlet valve (5), a piston (7) with a lower outwardly flaring lip seal (9) and an inwardly flaring lip seal (19), which rims a central aperture (17) of the piston (7), a hollow pump plunger rod (21), which is in sliding engagement with the central aperture (17), and which has a passage for communication (23) between the pump chamber (3) and the exterior, a securement device (37), with an upper retention cover (39), which attaches the cylinder (1) to a container, a first elastic member (31) housed in the cylinder (1) and a second elastic member (47), which has an upper bearing point (49) applied directly on the plunger rod (21), and which is above the upper retention cover (39).Type: GrantFiled: November 25, 2002Date of Patent: June 15, 2010Assignee: MeadWestvaco Calmar S.A.Inventors: Pere Parés Montaner, Nuria Parés Fernández, legal representative, Victor Ribera Turró, Haydee Martorell Pena
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Publication number: 20080029550Abstract: A closable dispensing pump for fluid substances comprising a chamber in which a piston is slidable, drivable by a stem, said stem presenting in its interior at least one first passage communicating with said compression chamber and a dispensing pushbutton presenting a second passage opening towards the outside of said dispensing pushbutton. The first passage presents a first aperture which opens onto said first contacting surface, said second passage presenting a second aperture which opens onto said second contacting surface, said pushbutton and said stem being mutually rotatable about a longitudinal axis between at least one open position in which said first and second aperture face each other and are in mutual communication, and a closed position in which they are mutually isolated and displaced.Type: ApplicationFiled: July 17, 2007Publication date: February 7, 2008Applicant: MeadWestvaco Calmar S.p.A.Inventor: Andrea Marelli
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Publication number: 20080000933Abstract: A simplified pump for dispensing fluid substances withdrawn from a container of said substances, comprising a cup-shaped body into which a hollow stem extends, an endpiece of the cup-shaped body, said cup-shaped body presenting a passage, closable by a valve, and a seat for housing one end of a dip tube, a piston, an elastic member and a movable valve for closing the stem cavity, an elongated rod, a first end of which is inserted into and retained in a seat provided at the second end of the cup-shaped body, an intermediate portion of the rod having a cylindrical profile of diameter less than the diameter of the stem cavity into which said rod portion extends, said movable valve for closing the stem cavity comprising a continuous elastic lip projecting from a second end of the rod towards the outside of said cylindrical chamber, said lip being sealedly slidable in contact with the cylindrical surface of the stem cavity.Type: ApplicationFiled: June 19, 2007Publication date: January 3, 2008Applicant: MeadWestvaco Calmar S.p.A.Inventor: Andrea MARELLI
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Patent number: 7243819Abstract: Manually operated invertible pump for dispensing atomized liquids, the pump having a very compact structure and an aperture which can be intercepted by the pump piston to control liquid entry into the pump when this is in a downwardly inverted position.Type: GrantFiled: September 14, 2004Date of Patent: July 17, 2007Assignee: Meadwestvaco Calmar S.p.A.Inventor: Andrea Marelli