Patent US3823656A successfully refreshed from Google Patents.
US3823656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single-use coffee filters
Assignee: Individual
•
Filing: 1972-09-18
•
Granted: 1974-07-16
•
Expires: 1992-09-18
Abstract
Abstract A single-use throw-away coffee filter comprising a water receiving filtering body having a bottom which is substantially constituted by a cartridge or capsule containing coffee and a filter element, the improvement comprising means to provide a sealing fit and to prevent relative movement between the filtering body and capsule, especially during the brewing of coffee.
Inventors
- 👤 G Veken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:03
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/02; A47J31/06; A47J31/0642; B; B65; B65D; B65D85/00; B65D85/70; B65D85/804; B65D85/8043
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
101 words
A single-use filter device comprising, in combination, a vessel adapted to contain a quantity of water and a capsule with a does of ground coffee or similar material, said capsule having upper and lower walls made of filtering material, said vessel having an inner wall with an inner ridge and another profiled portion and said capsule having an outer abutment adapted to cooperate with said inner ridge so as to be supported thereby and said capsule having moreover a lip adapted to cooperate with said other profiled portion so as to ensure a good sealing between the vessel and the capsule.
Claim 2
Dependent Claim
101 words
A single-use filter device comprising, in combination, a vessel adapted to contain a quantity of water and a capsule with a does of ground coffee or similar material, said capsule having upper and lower walls made of filtering material, said vessel having an inner wall with an inner ridge and another profiled portion and said capsule having an outer abutment adapted to cooperate with said inner ridge so as to be supported thereby and said capsule having moreover a lip adapted to cooperate with said other profiled portion so as to ensure a good sealing between the vessel and the capsule.
Claim 3
Dependent Claim
35 words
A single-use filter device as recited in claim 1, wherein said inner ridge extends radially inwardly and said outer abutment extends radially outwardly; and said lip cooperates with said other profiled portion in wedging relationship.
Claim 4
Dependent Claim
10 words
said sidewall also having a generally axially extending second portion;
Claim 5
Dependent Claim
10 words
said sidewall also having a generally axially extending second portion;
Claim 6
Dependent Claim
14 words
said capsule having a generally radially outwardly extending abutment on a peripheral area thereof;
Claim 7
Dependent Claim
14 words
said capsule having a generally radially outwardly extending abutment on a peripheral area thereof;
Claim 8
Dependent Claim
16 words
A single-use filter device according to claim 1, wherein said other profiled portion is inwardly tapered.
Claim 9
Dependent Claim
15 words
A single-use filter device according to claim 1, wherein said other profiled portion is vertical.
Claim 10
Dependent Claim
91 words
said capsule also having a deformable seal element on another peripheral area of said capsule, the outer diametrical size of said seal element at rest being greater than the inner diametrical size of said axially extending sidewall portion, whereby said capsule is retained in said opening with the abutment thereof cooperating with the said ridge of said opening to positively prevent axial motion of said capsule beyond a desired point in said openIng, and with said seal element engaging said axially extending sidewall portion in a liquid sealing and wedging relationship.
Claim 11
Dependent Claim
91 words
said capsule also having a deformable seal element on another peripheral area of said capsule, the outer diametrical size of said seal element at rest being greater than the inner diametrical size of said axially extending sidewall portion, whereby said capsule is retained in said opening with the abutment thereof cooperating with the said ridge of said opening to positively prevent axial motion of said capsule beyond a desired point in said openIng, and with said seal element engaging said axially extending sidewall portion in a liquid sealing and wedging relationship.
Claim 12
Dependent Claim
26 words
A single-use filter device according to claim 1, wherein said other profiled portion forms part of a peripheral edge delimiting a bottom opening in said vessel.
Claim 13
Dependent Claim
14 words
A single-use filter device according to claim 1, wherein said lip is directed downwardly.
Claim 14
Dependent Claim
14 words
A single-use filter device according to claim 1, wherein said lip is directed upwardly.
Claim 15
Dependent Claim
46 words
A single-use filter device according to claim 1, wherein said abutment is constituted by a concave part downwardly prolonged by said lip, whilst said inner ridge and said other profiled part have a shape which is complementary to that of said concave part and said lip.
Claim 16
Dependent Claim
46 words
A single-use filter device according to claim 1, wherein said abutment is constituted by a convex part downwardly prolonged by said lip, whilst said inner ridge and said other profiled part have a shape which is complementary to that of said convex part and said lip.
Claim 17
Dependent Claim
23 words
A single-use filter device according to claim 1, wherein said lip is connected to the body of said capsule by a circular rim.
Claim 18
Dependent Claim
18 words
A single-use filter device according to claim 1, wherein said lip is made of a plurality of parts.
Claim 19
Dependent Claim
19 words
A single-use filter device according to claim 1, wherein said lip is formed by a plurality of circular ribs.
Claim 20
Dependent Claim
40 words
In a single-use coffee filter unit including a water vessel having an opening in its bottom, including a sidewall of said opening, said opening receiving a coffee containing capsule in interfitting and sealing relationship with said sidewall, the improvement comprising:
Claim 21
Dependent Claim
40 words
In a single-use coffee filter unit including a water vessel having an opening in its bottom, including a sidewall of said opening, said opening receiving a coffee containing capsule in interfitting and sealing relationship with said sidewall, the improvement comprising:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |