Patent US4224168A successfully refreshed from Google Patents.
US4224168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holder for filter bags
Assignee: Melitta Haushaltsprodukte GmbH and Co KG
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Filing: 1978-11-20
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Granted: 1980-09-23
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Expires: 1998-11-20
Abstract
Abstract A holder of elastic material for filter bags open at the top for preparing beverages, especially tea and coffee, which comprises a tubular stud having two oppositely arranged stud sections connected at their upper ends by an annular member and spaced from each other by a slot having two diametrically arranged slot sections while at least one manually operable spring-urged pressure member is provided which is adapted to press the stud sections toward each other to reduce the diameter of the stud and thereby facilitate the placing of a filter bag on the stud. Advantageously the stud sections are provided with tapering surfaces to facilitate the slipping of a filter bag onto the stud, while barbs or the like are provided on the stud sections for piercing an inserted filter bag and holding the same.
Inventors
- 👤 Jan Tragardh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:34
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/02; B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/23; B01D29/27
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
200 words
A holder of elastic material for filter bags open at one end for preparing beverages, especially tea and coffee, which includes: a tubular stud for receiving and holding a filter bag, said stud having an upper part with radially outwardly extending means for resting on the opening rim of a vessel intended to receive the beverage and for limiting the slipping-on movement of the filter bag onto said stud, said tubular stud also having a lower part connected to said upper part and provided with an axial slot therethrough dividing said lower part into two sections, the lower end of said two sections respectively comprising two end surfaces inclined relative to the longitudinal axis of said stud so as to define with each other a wedge-shaped end region facilitating the slipping of a filter bag onto said stud, and resilient actuating means operable selectively to move said two sections toward each other against the resilient force thereof to facilitate the slipping of a filter bag onto said stud and subsequently to allow the resilient force of said resilient actuating means to spread said sections apart so as to cause said sections to hold a slipped-on filter bag on said stud.
Claim 2
Dependent Claim
200 words
A holder of elastic material for filter bags open at one end for preparing beverages, especially tea and coffee, which includes: a tubular stud for receiving and holding a filter bag, said stud having an upper part with radially outwardly extending means for resting on the opening rim of a vessel intended to receive the beverage and for limiting the slipping-on movement of the filter bag onto said stud, said tubular stud also having a lower part connected to said upper part and provided with an axial slot therethrough dividing said lower part into two sections, the lower end of said two sections respectively comprising two end surfaces inclined relative to the longitudinal axis of said stud so as to define with each other a wedge-shaped end region facilitating the slipping of a filter bag onto said stud, and resilient actuating means operable selectively to move said two sections toward each other against the resilient force thereof to facilitate the slipping of a filter bag onto said stud and subsequently to allow the resilient force of said resilient actuating means to spread said sections apart so as to cause said sections to hold a slipped-on filter bag on said stud.
Claim 3
Dependent Claim
15 words
A holder according to claim 1, in which said upper part includes an annular flange.
Claim 4
Dependent Claim
45 words
A holder according to claim 2, in which said slot has two diametrically oppositely located slot sections extending through the axial length of said lower stud section, portions of said flange serving as resilient connecting member for said stud sections continuously urging the latter apart.
Claim 5
Dependent Claim
28 words
A holder according to claim 3, in which said resilient connecting member forms an extension of said upper part for supporting said holder on a beverage receiving container.
Claim 6
Dependent Claim
99 words
A holder according to claim 2, in which said flange on one side of said slot has connected thereto a handle provided with a recess adjacent said flange and in which on the other side of said slot adjacent to and opposite a portion of said handle said flange has connected thereto a pressure member at least partially located and movable in said recess, said pressure member having that side thereof which extends in the longitudinal direction of said handle and faces into said recess spaced from the opposite handle wall portion by about the width of said slot.
Claim 7
Dependent Claim
32 words
A holder according to claim 5, in which the lateral outer side of said pressure member and the adjacent lateral outer side of said handle are located in about the same plane.
Claim 8
Dependent Claim
21 words
A holder according to claim 1, in which said stud is provided with barb-shaped projections for piercing an inserted filter bag.
Claim 9
Dependent Claim
58 words
A holder according to claim 1, in which said upper part includes an annular strip of resilient material closed in itself and also includes a collar with two diametrically oppositely located slots and two oppositely located ears forming pressure members operable to selectively press said stud sections toward each other, said ears respectively being located between said slots.
References Cited (Backward Citations)
US3483812A
Cited
US3615708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |