Patent US3662764A successfully refreshed from Google Patents.
US3662764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoker{40 s pipe
Assignee: Individual
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Filing: 1970-10-23
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Granted: 1972-05-16
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Expires: 1990-10-23
Abstract
Abstract A smoker''s pipe having an axial cylindrical bore within the pipe shank portion wherein a plurality of filter elements are removably disposed for filtering, cooling and absorbing moisture. The filter elements are of cylindrical shape and supported in spaced relation along and within the pipe shank by means of a helical compression spring having stretched-out portions providing spaced gaps within which the filter elements are removably constrained. A wire loop handle at the outer end of the spring facilitates manual insertion. A removable friction-fit bit at the outer end of the pipe shank abuttingly constrains the spring-filter assembly in place.
Inventors
- 👤 Francisco Blanco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:06
CPC Classifications
A; A24; A24F; A24F1/00; A24F1/02; A24F1/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
In a smoker''s pipe, the combination comprising a generally vertical tobacco bowl portion, a pipe shank portion integrally formed with and extending outwardly of the lower end of said bowl portion, said shank portion being substantially cylindrical in shape and having an axial bore, a second bore of comparatively small diameter communicating between the bottom interior of said bowl portion and the inner end of said shank bore, a mouthpiecebit having an inner end plug portion removably received and frictionally retained in the outer end of said shank bore, a plurality of smoke filter elements, and means comprising a compression spring having stretched-out portions intermediate the ends thereof for removably receiving and supporting said filter elements in axially-spaced relation within said shank bore.
Claim 2
Dependent Claim
123 words
In a smoker''s pipe, the combination comprising a generally vertical tobacco bowl portion, a pipe shank portion integrally formed with and extending outwardly of the lower end of said bowl portion, said shank portion being substantially cylindrical in shape and having an axial bore, a second bore of comparatively small diameter communicating between the bottom interior of said bowl portion and the inner end of said shank bore, a mouthpiecebit having an inner end plug portion removably received and frictionally retained in the outer end of said shank bore, a plurality of smoke filter elements, and means comprising a compression spring having stretched-out portions intermediate the ends thereof for removably receiving and supporting said filter elements in axially-spaced relation within said shank bore.
Claim 3
Dependent Claim
16 words
A smoker''s pipe as defined in claim 1, wherein said filter elements are two in number.
Claim 4
Dependent Claim
73 words
A smoker''s pipe as defined in claim 2, wherein one end of said spring seats against an annular shoulder defined by the transitional zone between said axial shank bore and said second bore, and wherein the outer end of said spring is formed into an outwardly-extending loop which, upon the removal of said mouthpiece-bit, extends partially outwardly of the outer end of said shank bore to facilitate removal and insertion of said spring.
Claim 5
Dependent Claim
20 words
A smoker''s pipe as defined in claim 3, wherein said filter elements are cylindrical in shape and hygroscopic in nature.
Claim 6
Dependent Claim
48 words
A smoker''s pipe as defined in claim 4, wherein said filter elements are of slightly lesser diameter than the diameter of the shank bore within which they are axially received to permit expansion upon the absorption of moisture and other products of combustion when smoking of the pipe.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |