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US 4,813,801 AGranted
Case for cosmetic products, particularly lipsticks, and method for filling the same
OwnerEnnio Cardiainventor
Life of this patent
Estimating the term…
Abstract
A case for stick cosmetics, particularly lipsticks is described, formed by an external base, an intermediate body, a stick holder and a cap, comprising improvements in the elements for coupling the parts together and the moulding of the parts. Methods are also described for moulding the lipstick itself directly inside the case.
Claims12
In a case for stick cosmetics of the type having:
- (a) a cap in the form of a tubular sleeve with an open lower extremity,
- (b) an external base in the form of a tubular sleeve with an open upper extremity, a closed bottom and an internal helicoidal groove,
- (c) an intermediate body in the form of a tubular sleeve with both extremities open and a lower portion having a pair of opposed longitudinal slots and an upper portion having an increased wall thickness so as to form an outer annular periferal step, said lower portion of the intermediate body being telescopically engaged with said external base, and
- (d) a stick holder in the form of a tubular sleeve with open extremities and an inner partition for supporting the stick and a pair of opposed outwardly projecting pins at the lower extremity, said pins being engaged with both said grooves and said slots for a translatory movement of said stick holder along said intermediate body from a retracted to an extended position upon rotation of said external base with respect to said intermediate body, said external base and said cap having the same outer diameter,
- the improvement which comprises
- said external base formed of one piece made of essentially rigid moulded plastic material and having an upper portion of reduced wall thickness with both a reduced outer diameter and an increased inner diameter with respect to the lower portion of said base and an outer annular step for abutment with said cap, said upper portion of the base abutting on said outer annular step of said intermediate body and having at least one inner annular projection, and said intermediate body having on its outer wall at least one annular projection for a snap engagement with said projection of the base.
3 more elements
In a case for stick cosmetics of the type having:
- (a) a cap in the form of a tubular sleeve with an open lower extremity,
- (b) an external base in the form of a tubular sleeve with an open upper extremity, a closed bottom and an internal helicoidal groove,
- (c) an intermediate body in the form of a tubular sleeve with both extremities open and a lower portion having a pair of opposed longitudinal slots and an upper portion having an increased wall thickness so as to form an outer annular peripheral step, said lower portion of the intermediate body being telescopically engaged with said external base, and
- (d) a stick holder in the form of a tubular sleeve with open extremities and an inner partition for supporting the stick and a pair of opposed outwardly projecting pins at the lower extremity, said pins being engaged with both said grooves and said slots for a translatory movement of said stick holder along said intermediate body from a retracted to an extended position upon rotation of said external bse with respect to said intermediate body, said external base and said cap having the same outer diameter, the improvmeent which comprises
- said external base formed of one piece and having an upper portion of reduced wall thickness with an outer annular step for abutment with said cap, said upper portion of the base having at least one inner annular projection, and said intermediate body having on its outer wall at least one annular projection for a snap engagement with said projection of the base wherein said stick holder has an opening in the partition, a closed bottom, and an internal column member which is integral with said bottom, whereby the moulding of the stick can be made directly in the case by pouring a fluid stick materail into the top of the intermediate body.
2 more elements
In a case for stick cosmetics of the type having:
- (a) a cap in the form of a tubular sleeve with an open lower extremity,
- (b) an external base in the form of a tubular sleeve with a open upper extremity, a closed bottom and an internal helicoidal groove,
- (c) an intermediate body in the form of a tubular sleeve with both extremities open and a lower portion having a pair of opposed longitudinal slots and an upper portion having an increased wall thickness so as to form an outer annular peripheral step, said lower portion of the intermediate body being telescopically engaged with said external base, and
- (d) a stick holder in the fo rm of a tubular sleeve with open extremities and an inner partition for supporting the stick and a pair of opposed outwardly projecting pins at the lower extremity, said pins being engaged with both said grooves and said slots for a translatory movement of said stick holder along said intermediate body from a retracted to an extended position upon rotation of said external base with respect to said intermediate body, said external base and said cap having the same outer diameter, the improvement which comprises
- said external base formed of one piece and having an upper portion of reduced wall thickness with an outer annular step for abutment with said cap, said upper portion of the base having at least one inner annular projection, and said intermediate body having on its outer wall at least one annular projection for a snap engagement with said projection of the base, wherein one of said pins in the stick holder is in rigid friction contact with the inner wall of said base and the other pin is in elastic friction contact with said wall.
2 more elements
Dependencies are inferred from the claim text.