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US4071035A Expired / Lapsed US ⏱️ 0.0 years remaining

Pyramid pipe

Assignee: Individual
•
Filing: 1976-10-01
•
Granted: 1978-01-31
•
Expires: 1996-10-01
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Abstract

Abstract An apparatus for the double filtering of tobacco smoke by water or other suitable liquid. The apparatus is provided with two vertically arranged chambers, the lower chamber, for carrying the filtering liquid, being in communication with the upper chamber by means of riser tubes. The apparatus includes a tobacco carrying bowl exterior of the apparatus and in communication with the bottom of the lower chamber and including a mouthpiece exterior of the apparatus and in communication with the upper chamber.

Inventors

  • 👤 Cecil E. Boyd
  • 👤 Bruce K. McGillvray

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 06:01
CPC Classifications
A; A24; A24F; A24F1/00; A24F1/30

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 128 words
A double chamber smoke filtering apparatus comprising: a. a first chamber for receiving a filtering liquid therein; b. a second chamber disposed above the first chamber; c. a plurality of fluid riser tubes connecting the bottom of the second chamber with the lower portion of the first chamber; d. tobacco carrying means exterior of the chambers and including smoke passageway means operably connecting the tobacco carrying means in open communication with the bottom of the lower chamber below the riser tubes; e. a mouthpiece passageway means exterior of the chambers and operably connected in communication with the second chamber; f. a small smoke escape orifice disposed between the first and second chambers providing communication between the top of the first chamber and the bottom of the second chamber.
Claim 2
Dependent Claim 128 words
A double chamber smoke filtering apparatus comprising: a. a first chamber for receiving a filtering liquid therein; b. a second chamber disposed above the first chamber; c. a plurality of fluid riser tubes connecting the bottom of the second chamber with the lower portion of the first chamber; d. tobacco carrying means exterior of the chambers and including smoke passageway means operably connecting the tobacco carrying means in open communication with the bottom of the lower chamber below the riser tubes; e. a mouthpiece passageway means exterior of the chambers and operably connected in communication with the second chamber; f. a small smoke escape orifice disposed between the first and second chambers providing communication between the top of the first chamber and the bottom of the second chamber.
Claim 3
Dependent Claim 33 words
A smoke filtering apparatus as set forth in claim 1 and including carburetor aperture providing communication between the second chamber and the exterior of the apparatus, capable of selective opening and closing thereof.
Claim 4
Dependent Claim 19 words
A smoke filtering apparatus as set forth in claim 1 wherein the second chamber is of a pyramid shape.
Claim 5
Dependent Claim 96 words
A smoke filtering apparatus as set forth in claim 1 wherein the second chamber is a closed container having a bottom tubular portion and wherein the first chamber is an open topped container having an upper tubular portion shaped for sealingly receiving the bottom tubular portion of the second container therein and wherein a plurality of bores are provided in a bottom of the upper closed container for receiving and supporting the upper ends of the plurality of riser tubes therein, and wherein the small orifice is provided through the bottom of the upper closed compartment.
Claim 6
Dependent Claim 19 words
A smoke filtering apparatus as set forth in claim 1 wherein the tobacco carrying means comprises a tobacco bowl.
Claim 7
Dependent Claim 19 words
A smoke filtering apparatus as set forth in claim 1 wherein the tobacco carrying means comprises a cigarette holder.
Claim 8
Dependent Claim 61 words
A smoke filtering apparatus as set forth in claim 1 wherein the smoke passageway means is a tube having one end thereof connected to the tobacco carrying means, the opposite end thereof being sealingly passed through the second chamber and into the first chamber and terminating between the lower ends of the riser tubes and the bottom of the first chamber.
Claim 9
Dependent Claim 174 words
A smoke filtering apparatus comprising; a. a closed container; b. a horizontal partition dividing the closed container into upper and lower chambers; c. a plurality of vertically disposed riser tubes, the upper ends thereof extending through the partition in open communication with the upper chamber, the lower ends thereof extending downwardly into the lower chamber and terminating in the lower portion of said lower chamber; d. a small smoke escape orifice provided through the partition communicating between the upper and lower chambers; e. mouthpiece means connected through the container and in communication with the upper chamber; f. carburetor bore provided through the container and in communication with the upper chamber and capable of being selectably opened or closed; g. tobacco carrying means disposed exterior of the container, smoke passageway means connected to the tobacco carrying means at one end thereof, the opposite end thereof passing through the container and in communication with the lower portion of the lower chamber between the lower end of the riser tubes and the bottom of said lower chamber.
Claim 10
Dependent Claim 174 words
A smoke filtering apparatus comprising; a. a closed container; b. a horizontal partition dividing the closed container into upper and lower chambers; c. a plurality of vertically disposed riser tubes, the upper ends thereof extending through the partition in open communication with the upper chamber, the lower ends thereof extending downwardly into the lower chamber and terminating in the lower portion of said lower chamber; d. a small smoke escape orifice provided through the partition communicating between the upper and lower chambers; e. mouthpiece means connected through the container and in communication with the upper chamber; f. carburetor bore provided through the container and in communication with the upper chamber and capable of being selectably opened or closed; g. tobacco carrying means disposed exterior of the container, smoke passageway means connected to the tobacco carrying means at one end thereof, the opposite end thereof passing through the container and in communication with the lower portion of the lower chamber between the lower end of the riser tubes and the bottom of said lower chamber.
Claim 11
Dependent Claim 19 words
A smoke filtering apparatus as set forth in claim 8 wherein the top of the container is pyramid shaped.
Claim 12
Dependent Claim 128 words
A double chamber smoke filtering apparatus comprising; a. a first chamber for receiving a filtering liquid wherein; b. a second chamber disposed above the first chamber; c. at least one fluid riser tube connecting the bottom of the second chamber with the lower portion of the first chamber; d. tobacco carrying means exterior of the chambers and including smoke passageway means operably connecting the tobacco carrying means in open communication with the bottom of the lower chamber below the riser tubes; e. a mouthpiece passageway means exterior of the chambers and operably connected in communication with the second chamber; f. a small smoke escape orifice disposed between the first and second chambers providing communication between the top of the first chamber and the bottom of the second chamber.
Claim 13
Dependent Claim 128 words
A double chamber smoke filtering apparatus comprising; a. a first chamber for receiving a filtering liquid wherein; b. a second chamber disposed above the first chamber; c. at least one fluid riser tube connecting the bottom of the second chamber with the lower portion of the first chamber; d. tobacco carrying means exterior of the chambers and including smoke passageway means operably connecting the tobacco carrying means in open communication with the bottom of the lower chamber below the riser tubes; e. a mouthpiece passageway means exterior of the chambers and operably connected in communication with the second chamber; f. a small smoke escape orifice disposed between the first and second chambers providing communication between the top of the first chamber and the bottom of the second chamber.

References Cited (Backward Citations)

US2804079A Cited
US3805806A Cited
US3881499A Cited
US3882875A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-01-30 1981-08-01 1982-01-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-01-30 1985-08-01 1986-01-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-01-30 1989-08-01 1990-01-31 $7700.00 Window Closed / Lapsed

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