Petaloid base with broken valley

Patent metadata

Field	Value
Publication number	US-11008129-B2
Application number	US-201716340345-A
Country	US
Kind code	B2
Filing date	Sep 21, 2017
Priority date	Oct 6, 2016
Publication date	May 18, 2021
Grant date	May 18, 2021

Abstract

Disclosed is a container provided with a petaloid base having feet that form protrusions towards the outside of the container, separated two by two by recessed valleys that extend radially from a central dome of the base to a periphery of same, each foot having a median face with concavity facing outwards and extending via an end face forming a discontinuous seat ring, with a planar cross section, each valley having an inner portion extending from the central dome and an outer portion that meets the periphery, the inner portion and the outer portion being, in cross section in a central radial plane at the valley, straight and together forming an obtuse angle protruding towards the outside of the container and meeting at a vertex situated in line with or very nearly in line with the seat ring.

First claim

The invention claimed is:

1. Container ( 1 ) made of plastic material comprising a body ( 2 ), which extends along a main axis (X), and a petaloid bottom ( 3 ), which extends the body ( 2 ), with this bottom ( 3 ) comprising:
A bottom wall ( 4 ) of general convex shape toward the exterior of the container ( 1 ),
A central dome ( 5 ) formed recessed toward the interior of the container ( 1 ) and that extends from a central vertex ( 6 ) to a peripheral edge ( 7 ) by which the dome ( 5 ) connects to the bottom wall ( 4 ), and
At least four feet ( 8 ) that form protrusions from the bottom wall ( 4 ) toward the exterior of the container ( 1 ), separated two by two by bottom wall ( 4 ) portions forming at least four recessed valleys ( 10 ) that extend radially from a central dome ( 5 ) of the bottom ( 3 ) to a periphery ( 9 ) of the latter,
with each foot ( 8 ) having two sides ( 11 ), each bordering one of the at least four recessed valleys ( 10 ), and a central face ( 12 ) that, in a radial plane, has a curved profile with concavity facing the exterior of the container ( 1 ) and extends via an end face ( 13 ), with the end faces jointly forming a seat ring ( 14 ), with a planar cross-section, while being discontinuous at right angles with each valley ( 10 ),
wherein:
Each valley ( 10 ) has an inner portion ( 15 , 15 A, 15 B) that extends from the central dome ( 5 ) and an outer portion ( 16 ) that abuts the periphery ( 9 ) in the extension of the inner portion ( 15 , 15 A, 15 B), with the inner portion ( 15 , 15 A, 15 B) and the outer portion ( 16 ) being, in cross-section in a central radial plane in the valley ( 10 ), straight and forming together an obtuse angle (P) protruding toward the exterior of the container ( 1 ) and abutting a vertex ( 17 ) situated in line with or very nearly in line with the seat ring ( 14 );
The bottom ( 3 ) comprises two groups of valleys ( 10 ) placed alternately:
Primary valleys ( 10 A) whose inner portion ( 15 A) connects to the dome ( 5 ) at the height of the peripheral edge ( 7 ) of the latter;
Secondary valleys ( 10 B) whose inner portion ( 15 B) connects to the dome ( 5 ) between the peripheral edge ( 7 ) and the central vertex ( 6 ) of the dome, at a distance (F′) from the peripheral edge ( 7 ), the inner portion ( 15 B) being inclined, in relation to any plane that is parallel to the plane of the seat ring ( 14 ), toward the interior of the container ( 1 ).

2. Container ( 1 ) according to claim 1 , wherein the dome has a height (F), measured axially between its peripheral edge ( 7 ) and its vertex ( 6 ), and, in the secondary valleys ( 10 B), the inner portion ( 15 B) connects to the dome ( 5 ) at a distance (F′) from the peripheral edge ( 7 ) that is encompassed between 20% and 70% of said height (F) of the dome.

3. Container ( 1 ) according to claim 1 , wherein characterized in that the angle of inclination of the inner portion ( 15 B) of the secondary valleys ( 10 B) is between 5° and 30°.

4. Container ( 1 ) according to claim 1 , wherein in the primary valleys ( 10 A), the inner portion ( 15 A) is inclined, in relation to any plane that is parallel to the plane of the seat ring ( 14 ), toward the exterior of the container ( 1 ).

5. Container ( 1 ) according to claim 4 , wherein characterized in that the angle of inclination of the inner portion ( 15 A) of the primary valleys ( 10 A) is between 2° and 10°.

6. Container ( 1 ) according to claim 1 , wherein in the primary valleys ( 10 A), the inner portion ( 15 A) is inclined, in relation to any plane that is parallel to the plane of the seat ring ( 14 ), toward the interior of the container ( 1 ) by an angle that is less than or equal to 4°.

7. Container ( 1 ) according to claim 1 , wherein in the central radial plane in each valley ( 10 ), the vertex ( 17 ) of the primary and/or secondary valley ( 10 ) is offset in relation to the seat ring ( 14 ).

8. Container ( 1 ) according to claim 7 , wherein the vertex ( 17 ) is offset in relation to the seat ring ( 14 ) by a value (O) of between 1.5 mm and 3 mm.

9. Container ( 1 ) according to claim 1 , wherein the obtuse angle (P) that is formed, in the central radial plane with a primary valley ( 10 A), between its inner portion ( 15 A) and its outer portion ( 16 ), has a value of between 130° and 175°.

10. Container ( 1 ) according to claim 9 , wherein the obtuse angle (P) that is formed, in the central radial plane with each primary valley ( 10 A), between the inner portion ( 15 ) and the outer portion ( 16 ), has a value (P) of approximately 160°.

11. Container ( 1 ) according to claim 1 , wherein the obtuse angle (P′) that is formed, in the central radial plane with a secondary valley ( 10 B), between its inner portion ( 15 B) and its outer portion ( 16 ), has a value of between 130° and 165°.

12. Container ( 1 ) according to claim 1 , wherein the obtuse angle (P′) that is formed, in the central radial plane with a secondary valley ( 10 B), between its inner portion ( 15 B) and its outer portion ( 16 ), has a value of approximately 140° to 145°.

13. Container ( 1 ) according to claim 1 , wherein with the bottom ( 3 ) of the container having an overall diameter (D), the vertex ( 17 ) of the valley ( 10 ) is distant from the plane of the seat ring ( 14 ) by a value (M) of between 10% and 15% of said diameter.

14. Container ( 1 ) according to claim 13 , wherein the distance (M) from the vertex ( 17 ) of the valley ( 10 ) to the plane of the seat ring ( 14 ) is approximately 12% of the overall diameter (D) of the bottom ( 3 ).

15. Container ( 1 ) according to claim 1 , wherein the bottom ( 3 ) has an overall diameter (D), all of the outer portions ( 16 ) abut the periphery ( 9 ) on the same junction plane, and the feet have a height (Q), measured axially between the plane of the seat ring ( 14 ) and said junction plane, whose value is between 15% and 25% of said diameter (D).

16. Container ( 1 ) according to claim 15 , wherein the height (Q) of the feet ( 8 ) has a value of approximately 20% of the overall diameter (D) of the bottom ( 3 ).

17. The container according to claim 2 , wherein in the primary valleys, the inner portion is inclined, in relation to any plane that is parallel to the plane of the seat ring, toward the exterior of the container.

Assignees

• Sidel Participations

Inventors

• Pierre Ivan
• Naveau Laurent

Classifications

• B65D1/0284 Primary

  having a discontinuous contact surface, e.g. discrete feet · CPC title