Filter insert

Patent metadata

Field	Value
Publication number	US-10045652-B2
Application number	US-16110606-A
Country	US
Kind code	B2
Filing date	Jan 20, 2006
Priority date	Jan 20, 2006
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

A filter insert ( 1 ) for insertion into an insert opening ( 91 ) of a vessel ( 9 ) for the purpose of extracting beverages has a base body ( 3 ), which has filter openings ( 51 ), and a sleeve. A circumferential region of the sleeve has a corrugated elastic outer contour ( 21 ) which serves to flexibly match said filter insert to an internal dimension of the insert opening ( 91 ) of the vessel ( 9 ).

First claim

The invention claimed is:

1. A filter insert for inserting into an insertion opening of a vessel for the purpose of extraction of beverages, the filter insert comprising:
a hollow main body, the main body being upwardly open and comprising a cylindrical filtering section, the cylindrical filtering section being provided with filtering holes, the main body further comprising a rigid support section arranged above the cylindrical filtering section, and the main body further comprising a rigid annular flange that projects radially outwards from the rigid support section, the rigid annular flange having a bottom surface, a top surface and an outer rim, and
an elastic collar that is a structure separate from and attached to said hollow main body, the elastic collar covering an outside contour of the support section and of the flange, the elastic collar being made of a flexible and heat-resistant plastic for flexible adaptation to an inside dimension of the insertion opening of the vessel,
the elastic collar comprising a lower portion having the form of a cylindrical ring, a middle portion above the lower portion, the middle portion having an elastic wave-form outside contour extending along a circumferential direction of the elastic collar like a rosette with alternating crests and troughs, said middle portion at said outside contour being compressible to provide a tight fit into said insertion opening of the vessel, and an upper portion, wherein the upper portion tightly fits over the annular flange so as to cover the bottom surface, the rim and at least part of the top surface of the annular flange.

2. The filter insert as claimed in claim 1 , wherein the elastic collar is a one-piece structure.

3. The filter insert as claimed in claim 1 , wherein the circumference of the elastic collar tapers in a lower region.

4. The filter insert as claimed in claim 1 , wherein the wave-form outside contour extends around the entire circumference of the elastic collar.

5. The filter insert as claimed in claim 1 , wherein the elastic collar is connected to the upper region of the main body in a fixed manner.

6. The filter insert as claimed in claim 1 , wherein the elastic collar is removable from the main body.

7. The filter insert as claimed in claim 1 , wherein the elastic collar is made from silicone rubber.

8. The filter insert as claimed in claim 1 , wherein the main body is made from metal, glass, plastic or combinations thereof.

9. The filter insert as claimed in claim 1 , wherein the elastic collar has a wave-form inside contour which lies only partially on the support section of the main body, and wherein a plurality of gaps are formed between the wave-form inside contour and the support section.

10. A vessel with the filter insert as claimed in claim 1 , wherein the wave-form outside contour is in an at least partially non-positive locking engagement with the insertion opening of the vessel.

11. The vessel as claimed in claim 10 , wherein the wave-form outside contour has a first diameter, which is measured from a first crest to a second opposite crest, wherein the insertion opening of the vessel has a second diameter, and wherein the first diameter is larger than the second diameter.

12. The filter insert as claimed in claim 1 , wherein the filtering holes are provided in a plurality of parallel rows.

13. The filter insert as claimed in claim 1 , wherein the crests and troughs of the elastic wave-form outside contour are smooth without sharp edges between crests and troughs along the circumferential direction.

14. The filter insert as claimed in claim 1 , wherein said hollow main body has a round cross-sectional shape.

15. The filter insert as claimed in claim 1 , wherein the main body is made of a rigid material.

16. The filter insert as claimed in claim 1 , wherein the main body is made of metal, glass, or plastic.

17. The filter insert as claimed in claim 1 , wherein the rigid support section comprises a cylindrical ring, a conical transition section arranged above the cylindrical ring, the conical transition section widening towards the top, and a cylindrical section arranged above the conical transition section, the annular flange projecting radially outward from the cylindrical section.

18. A combination comprising:
a vessel, and
a filter insert for inserting into an insertion opening of the vessel for the purpose of extraction of beverages, the filter insert comprising:
a rigid hollow main body, the main body being upwardly open and comprising a cylindrical filtering section, the cylindrical filtering section having a side wall that is provided with filtering holes, the main body further comprising a rigid support section arranged above the cylindrical filtering section, and the main body further comprising a rigid annular flange that projects radially outwards from the rigid support section, the rigid annular flange having a bottom surface, a top surface and an outer rim, and
an elastic collar that is a structure separate from and attached to said hollow main body, positioned in the inner circumference of the insertion opening of the vessel and covering an outside contour of the support section and of the flange, the elastic collar being made of a flexible and heat-resistant plastic for flexible adaptation to an inside dimension of the insertion opening of the vessel,
the elastic collar comprising a lower portion having the form of a cylindrical ring, a middle portion above the lower portion, the middle portion having an elastic wave-form outside contour extending along a circumferential direction of the collar like a rosette with alternating crests and troughs, said middle portion at said outside contour being compressible to provide a tight fit into said insertion opening of the vessel, and an upper portion, wherein the middle portion surrounds the support section, and wherein the upper portion tightly fits over the annular flange so as to cover the bottom surface, the rim and at least part of the top surface of the annular flange.

19. The combination as claimed in claim 18 , wherein the elastic collar further has a wave-form inside contour adjacent to the support section of the main body, gaps being formed between the support section and the wave-form inside contour, the gaps containing a gas.

20. The combination as claimed in claim 18 , wherein said elastic collar is a one-piece structure.

21. The combination as claimed in claim 18 , wherein said hollow main body has a round cross-sectional shape.

22. A filter insert for inserting into an insertion opening of a vessel for the purpose of extraction of beverages, the filter insert comprising:
a hollow main body, the main body being upwardly open and comprising a cylindrical filtering section, the cylindrical filtering section being provided with filtering holes, the main body further comprising a transition section arranged above the cylindrical filtering section, the transition section having a conical shape and a cross section that increases in an upward direction, and a tapering section arranged above the transition section, the tapering section having a conical shape and a cross section that decreases in an upward direction, and
an elastic collar that is a structure separate from and attached to said hollow main body, the elastic collar covering an outside contour of the transition section and of the tapering section, the elastic collar being made of a flexible and heat-resistant plastic for flexible adaptation to an inside di

Assignees

• Bodum Joergen
• Pi Design Ag

Inventors

• Bodum Jørgen

Classifications

• A47J31/02

  Coffee-making machines with removable extraction cups, to be placed on top of drinking-vessels {i.e. coffee-makers with removable brewing vessels, to be placed on top of beverage containers, into which hot water is poured}, e.g. cafe filter (filters A47J31/06) · CPC title

• A47J31/0626

  with means for securing the filter holder to the beverage container · CPC title

• A47J31/20

  having immersible, e.g. rotatable, filters · CPC title

• A47J31/0636 Primary

  suspended from the top of the beverage container so as to remain in contact with the prepared infusion (tea eggs A47G19/16) · CPC title