US4131211A — Receptacle made of thermoplastic material

Claim 1

Independent Claim 180 words

A receptacle such as a bottle, a beaker or the like, comprising: a side wall made of thermoplastic material; an end wall made of thermoplastic material and integral with said side wall; a separate bottom hermetically closing a filling opening located opposite said end wall; at least one curved or polygonal slot at least partially closed on itself formed through the entire thickness of said end wall and having edges in the form of flanges of substantially rounded section; said slot being made by melting of said thermoplastic material; and a foil or cap covering at least partially said end wall and provided with a layer of adhesive material opposite said end wall, said covering foil or cap being hermetically fast with a zone of said end wall surrounding said at least one slot and the part of said end wall surrounded by said slot, whereby at least one extraction opening delimited by said slot is provided by removing said covering foil or cap and pulling thereby said part of said end wall surrounded by said at least one slot.

Claim 2

Dependent Claim 180 words

A receptacle such as a bottle, a beaker or the like, comprising: a side wall made of thermoplastic material; an end wall made of thermoplastic material and integral with said side wall; a separate bottom hermetically closing a filling opening located opposite said end wall; at least one curved or polygonal slot at least partially closed on itself formed through the entire thickness of said end wall and having edges in the form of flanges of substantially rounded section; said slot being made by melting of said thermoplastic material; and a foil or cap covering at least partially said end wall and provided with a layer of adhesive material opposite said end wall, said covering foil or cap being hermetically fast with a zone of said end wall surrounding said at least one slot and the part of said end wall surrounded by said slot, whereby at least one extraction opening delimited by said slot is provided by removing said covering foil or cap and pulling thereby said part of said end wall surrounded by said at least one slot.

Claim 3

Dependent Claim 14 words

A receptacle as claimed in claim 1, wherein said slot is closed on itself.

Claim 4

Dependent Claim 24 words

A receptacle as claimed in claim 1, wherein said covering foil comprises a non adhevive tab housed in a recess of said side wall.

Claim 5

Dependent Claim 26 words

A receptacle as claimed in claim 1, wherein the end wall comprises an opening for extraction having a part in the form of a pouring spout.

Claim 6

Dependent Claim 21 words

A receptacle as claimed in claim 1, wherein the end wall comprises at least one non-flat part provided with the slot.

Claim 7

Dependent Claim 25 words

A receptacle as claimed in claim 1, wherein the surface of the covering foil is smaller than that of a face of the end wall.

Claim 8

Dependent Claim 20 words

A receptacle as claimed in claim 1, wherein the covering foil is fitted in a recess in the end wall.

Claim 9

Dependent Claim 38 words

A receptacle as claimed in claim 1, wherein the covering foil or cap has a flat part and a cylindrical threaded part, the flat part being provided with an adhesive layer opposite the end wall of the receptacle.

Claim 10

Dependent Claim 172 words

In a receptacle having a side wall made of thermoplastic material, an end wall made of thermoplastic material and being integral with said side wall, a separate bottom hermetically closing a filling opening located opposite said end wall, the improvement comprising: (a) a slot at least partially closed on itself formed through the entire thickness of said end wall, the edges of said slot having a substantially rounded cross-section and forming a substantially continuous smooth melted surface between the upper and lower surfaces of said end wall, and (b) a member at least partially covering said end wall and being provided with a layer of adhesive material against said end wall, said member being hermetically fastened to a zone of said end wall surrounding said slot and to the part of said end wall surrounded by said slot, whereby at least one extraction opening delimited by said slot is provided by removing said covering member and thereby pulling said part of said end wall away from the plane of said end wall.

Claim 11

Dependent Claim 172 words

In a receptacle having a side wall made of thermoplastic material, an end wall made of thermoplastic material and being integral with said side wall, a separate bottom hermetically closing a filling opening located opposite said end wall, the improvement comprising: (a) a slot at least partially closed on itself formed through the entire thickness of said end wall, the edges of said slot having a substantially rounded cross-section and forming a substantially continuous smooth melted surface between the upper and lower surfaces of said end wall, and (b) a member at least partially covering said end wall and being provided with a layer of adhesive material against said end wall, said member being hermetically fastened to a zone of said end wall surrounding said slot and to the part of said end wall surrounded by said slot, whereby at least one extraction opening delimited by said slot is provided by removing said covering member and thereby pulling said part of said end wall away from the plane of said end wall.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1981-12-25	1982-06-26	1982-12-26	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1985-12-25	1986-06-26	1986-12-26	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1989-12-25	1990-06-26	1990-12-26	$7700.00	Window Closed / Lapsed

Receptacle made of thermoplastic material

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