Patent US3667645A successfully refreshed from Google Patents.
US3667645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover and knob assembly for a coffee percolator
Assignee: Individual
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Filing: 1970-06-17
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Granted: 1972-06-06
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Expires: 1990-06-17
Abstract
Abstract A cover and knob assembly for a coffee percolator; the cover having an opening for the knob. The knob comprises a hollow body closed at one end and open at its other and has its closed end section projecting from and overlying the edges of the cover opening and its open end section extending through the cover opening. The open end section has oppositely laterally facing detent projections at its bottom. A U-shaped spring clip having arcuate sides with the altitude of the arcs greater than the distance between the projections and the underside of the cover, supported on the projections by the convex edges of the arcuate portions of its sides, with the ends of the sides resiliently pressing against the underside of the cover.
Inventors
- 👤 Milton Emmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:16
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/44; A47J31/4403; A47J31/4407
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
192 words
A cover for a coffee percolator, or the like, said cover comprising a top wall having a central opening formed therethrough, and a hollow knob for said cover extending through said opening; said knob comprising an upper section projecting above said top wall, said upper section closed at its outer end and having at least a portion thereof transparent, said upper section having a lower portion of greater dimension than said central opening and having an inwardly downwardly tapering bottom wall defining a central opening communicating with the interior of said upper section; and a lower tubular section connected to said bottom wall, surrounding said opening in said bottom wall and extending through said central opening below said top wall, means securing said knob in position on said top wall, comprising a clip fitted over said projecting lower section below said top wall of said cover section and projecting laterally from opposed sides of said lower section, and means on said tubular extension retaining said clip in position on said extension with said projecting position thereof engaging against the marginal edge portions of said opening in said top wall of said cover.
Claim 2
Dependent Claim
192 words
A cover for a coffee percolator, or the like, said cover comprising a top wall having a central opening formed therethrough, and a hollow knob for said cover extending through said opening; said knob comprising an upper section projecting above said top wall, said upper section closed at its outer end and having at least a portion thereof transparent, said upper section having a lower portion of greater dimension than said central opening and having an inwardly downwardly tapering bottom wall defining a central opening communicating with the interior of said upper section; and a lower tubular section connected to said bottom wall, surrounding said opening in said bottom wall and extending through said central opening below said top wall, means securing said knob in position on said top wall, comprising a clip fitted over said projecting lower section below said top wall of said cover section and projecting laterally from opposed sides of said lower section, and means on said tubular extension retaining said clip in position on said extension with said projecting position thereof engaging against the marginal edge portions of said opening in said top wall of said cover.
Claim 3
Dependent Claim
12 words
The cover of claim 1, wherein said clip is resilient and U-shaped.
Claim 4
Dependent Claim
56 words
The cover of claim 2, wherein said clip retaining means comprise shoulder portions formed on the exterior of opposed sides of said lower section at its free end, said clip having arcuate portions at the center of each side thereof of an altitude greater than the distance between said shoulder and the underside of said cover.
Claim 5
Dependent Claim
54 words
The cover of claim 3, wherein the wall of the inner portion of said lower section below said cover is of lesser thickness than the end edge portion thereof to thereby form a peripheral ledge around the exterior of said extension on its outer end, said sides of said clip supported on said ledge.
Claim 6
Dependent Claim
31 words
The cover of claim 3, wherein said shoulder portions are formed with upwardly facing concave surfaces for nesting the concAve portions of said arcuate portions of the side of said clip.
Claim 7
Dependent Claim
61 words
The cover of claim 3, wherein said opening in said cover is circular and said upper section is of circular cross section and its inner portion is of greater diameter than said opening, and said bottom extends inwardly from the edge of said cylindrical portion, and said lower tubular section depends from the edges of the opening defined by said bottom.
Claim 8
Dependent Claim
154 words
A knob for the cover of a coffee percolator, having a top wall formed with a central opening for receiving said knob, said knob comprising a hollow tubular body having an upper section adapted to project above said cover, said upper section being closed at its top and having an inner portion of a diameter greater than said opening and having a downwardly and inwardly tapering bottom wall adapted to be seated in and engage the edges of said opening in said cover, said bottom wall defining a central opening communicating with the interior of upper section, and a lower tubular section adopted to extend through said opening depending from said bottom and surrounding said opening defined by said bottom, said lower section having means at its free end for supporting a resilient retaining clip fitted around said lower section below said bottom wall and having projecting end portions engageable against said bottom wall.
Claim 9
Dependent Claim
154 words
A knob for the cover of a coffee percolator, having a top wall formed with a central opening for receiving said knob, said knob comprising a hollow tubular body having an upper section adapted to project above said cover, said upper section being closed at its top and having an inner portion of a diameter greater than said opening and having a downwardly and inwardly tapering bottom wall adapted to be seated in and engage the edges of said opening in said cover, said bottom wall defining a central opening communicating with the interior of upper section, and a lower tubular section adopted to extend through said opening depending from said bottom and surrounding said opening defined by said bottom, said lower section having means at its free end for supporting a resilient retaining clip fitted around said lower section below said bottom wall and having projecting end portions engageable against said bottom wall.
Claim 10
Dependent Claim
35 words
The knob of claim 7, wherein said means for supporting said clip comprise inner portions of said lower section having walls of reduced thickness to thereby form shoulders at its free end supporting said clip.
Claim 11
Dependent Claim
47 words
The knob of claim 7, wherein said upper portion is of circular cross section and said bottom extends inwardly and downwardly from the edge thereof, forming a conical portion adopted to be seated in cover openings of different sizes and engage against the edges of said openings.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |