US3881499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water pipe or bong
Assignee: MCFADDEN MICHAEL DUNCAN
•
Filing: 1973-09-11
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Granted: 1975-05-06
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Expires: 1993-09-11
Abstract
Abstract An improved water pipe or bong wherein a water chamber for cleaning the smoke of ash and for cooling the smoke is located above an ash and contaminant trap. Smoke tubes from the trap to the water chamber end at different levels in the water so that one or more tubes are operative depending upon the strength of the draw. The bowl is heat insulated by refractory material from the rest of the pipe which is made of Plexiglas. A removable plug may be provided in the base of the pipe to facilitate cleaning the ash trap.
Inventors
- 👤 Michael Duncan Mcfadden
- 👤 Peter Robin Barnhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:18
CPC Classifications
A; A24; A24F; A24F1/00; A24F1/30
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
184 words
A water pipe or bong comprising: an inhalation and water chamber; a base chamber comprising ash and solid matter contaminant trap means and including top, divider plate means for separating said base chamber from said inhalation and water chamber, a bottom wall and sidewall means connecting said divider plate means and said bottom wall to complete said chamber; an inhalation and water chamber mounted on said base chamber; a bowl for burning a substance to be smoked; primary fluid communication means for directing combustion products including smoke from said bowl to said trap through said sidewall means; and secondary fluid communication means for directing smoke substantially free of ash and solid matter contaminants from said trap to said inhalation and water chamber; said primary and secondary fluid communication means being in indirect registry with each other in said trap; whereby during use of the bong, said trap, substantially by virtue of gravity forces, collects such solid matter passing from said bowl through said primary fluid communication means thereby substantially preventing matter other than smoke from passing to water in said inhalation and water chamber.
Claim 2
Dependent Claim
184 words
A water pipe or bong comprising: an inhalation and water chamber; a base chamber comprising ash and solid matter contaminant trap means and including top, divider plate means for separating said base chamber from said inhalation and water chamber, a bottom wall and sidewall means connecting said divider plate means and said bottom wall to complete said chamber; an inhalation and water chamber mounted on said base chamber; a bowl for burning a substance to be smoked; primary fluid communication means for directing combustion products including smoke from said bowl to said trap through said sidewall means; and secondary fluid communication means for directing smoke substantially free of ash and solid matter contaminants from said trap to said inhalation and water chamber; said primary and secondary fluid communication means being in indirect registry with each other in said trap; whereby during use of the bong, said trap, substantially by virtue of gravity forces, collects such solid matter passing from said bowl through said primary fluid communication means thereby substantially preventing matter other than smoke from passing to water in said inhalation and water chamber.
Claim 3
Dependent Claim
54 words
The bong as recited in claim 1, wherein said inhalation and water chamber further comprises means forming a contoured mouthpiece end thereon, conforming to the shape of the portions of the face about the mouth of the smoker whereby a tight seal between the smoker''s mouth and said inhalation and water chamber is assured.
Claim 4
Dependent Claim
58 words
The bong as recited in claim 1, wherein said bowl is located adjacent the lower end of said inhalation and water chamber and said inhalation and water chamber is bent mesially thereof, rearwardly away from said bowl whereby fumes from a substance burning in said bowl will be directed upwardly and away from the face of the smoker.
Claim 5
Dependent Claim
20 words
The bong as recited in claim 1, wherein means are provided for mounting said bowl on said divider plate means.
Claim 6
Dependent Claim
38 words
The bong as recited in claim 4, wherein said means for mounting said bowl on said divider plate means comprise refractory material for heat insulating said bowl from said divider plate means and the remainder of said bong.
Claim 7
Dependent Claim
31 words
The bong as recited in claim 5, wherein both said bowl and an end of said primary smoke directing means are mounted to said divider plate means by said refractory material.
Claim 8
Dependent Claim
36 words
The bong as recited in claim 6, wherein said refractory material extends above and below said divider plate means, and surrounds the lower end of said bowl and one end of said primary smoke directing means.
Claim 9
Dependent Claim
31 words
The bong as recited in claim 4, wherein said bowl includes an externally threaded lower end for firm engagement with said means for mounting said bowl on said divider plate means.
Claim 10
Dependent Claim
69 words
The bong as recited in claim 1, wherein said bowl further comprises means defining steep sided interior sidewall tapering downwardly into a smoke passage orifice whereby combusiton by-products from a substance burning in the bowl tend to readily flow from said bowl into said trap without adhering to said side wall upon a sharp inhalation by the smoker and whereby caking of burnt substance on said sidewalls is minimized.
Claim 11
Dependent Claim
26 words
The bong as recited in claim 1, including a base on said bong, a portion of said base defining said bottom wall of said trap means.
Claim 12
Dependent Claim
44 words
The bong as recited in claim 10, wherein said bottom wall of said trap means further comprises means defining an opening therein and a removable plug releasably disposed in said opening to facilitate periodic cleaning of accumulated ash and contaminates from said trap means.
Claim 13
Dependent Claim
29 words
The bong as recited in claim 11, wherein said plug is made from a resilient plastic material and includes a tab enabling manual insertion and removal of said plug.
Claim 14
Dependent Claim
58 words
The bong as recited in claim 11, wherein said bottom opening means includes means providing a circumferential recess medially thereof and a pair of opposed keyways extending downwardly theRefrom, said plug having opposed keys matingly insertable into said keyways and received in said recess means upon rotation of said plug to thereby retain said plug in said opening.
Claim 15
Dependent Claim
43 words
The bong as recited in claim 1, wherein said primary smoke directing means comprise a pair of tubing means joined at one end, said one end communicating with said bowl and the other ends of said tubing means extending into said trap mean.
Claim 16
Dependent Claim
74 words
The bong as recited inn claim 1, wherein said secondary smoke directing means comprise at least a pair of tubes each extended outwardly of said trap means and upwardly and inwardly through the side of said inhalation and water chamber, above a predetermined level of water to be contained in said inhalation and water chamber, said tubes having terminal, open ends extending downwardly into the water chamber portion of said inhalation and water chamber.
Claim 17
Dependent Claim
93 words
The bong as recited in claim 15, wherein said tube terminal open ends are respectively disposed at different vertical levels within said water chamber whereby during operating conditions only a portion of said secondary smoke directing means is operative to convey smoke to the water and inhalation poriton of the inhalation and water chamber during an easy draw by the smoker and all secondary smoke directing tubes are operative to convey smoke during a hard or sharp draw by the smoker, due to the differential in water pressure at said tube terminal ends.
Claim 18
Dependent Claim
46 words
The bong as recited in claim 16, and including at least four of said secondary smoke directing tubes, the terminal open ends of at least two of said tubes thereof each terminating at different levels in the water chamber portion of said smoke and inhalation chamber.
Claim 19
Dependent Claim
59 words
The bong as recited in claim 15, wherein said secondary smoke directing tubes extend from said trap upwardly through the base of said inhalation and water chamber to a point above the level of water therein, said secondary smoke directing tubes each having an end portion directed downwardly into the water chamber portion of said inhalation and water chamber.
Claim 20
Dependent Claim
78 words
The bong as recited in claim 18, wherein said secondary smoke directing tube terminal ends terminate at different vertical levels within said water chamber whereby only a portion of said secondary smoke directing means is operative to convey smoke during an easy draw by the smoker and all of said secondary smoke directing tubes are operative to convey smoke during a hard draw by the smoker due to the differential in water pressure at said different vertical levels.
Claim 21
Dependent Claim
29 words
The bong as recited in claim 1, wherein the major portions of said water and inhalation chamber and said ash and contaminant trap comprise tubes of substantially similar diameter.
Claim 22
Dependent Claim
16 words
The bong as recited in claim 20, wherein said tubes are made of an acrylic plastic.
Claim 23
Dependent Claim
17 words
The bong as recited in claim 20, wherein said tubes are made of a cast acrylic plastic.
Claim 24
Dependent Claim
32 words
The bong as recited in claim 20, wherein said ash and contaminant trap further comprises a perforated plate dividing said trap means into a trap portion and a primary smoke cooling chamber.
Claim 25
Dependent Claim
41 words
The bong as recited in claim 23, wherein said primary smoke directing means terminates in said trap portion and said secondary smoke directing means is constructed to convey smoke from said primary smoke cooling chamber to said inhalation and water chamber.
Claim 26
Dependent Claim
31 words
The bong as recited in claim 23, wherein said perforated plate includes a forward extension having means therein for mounting a portion of said primary smoke directing means through said extension.
Claim 27
Dependent Claim
15 words
The bong as recited in claim 23, and further comprising a base on said bong.
Claim 28
Dependent Claim
34 words
The bong as recited in claim 26, wherein the upper face of said base further comprises means defining a recess therein for receiving the lower circumferential edge of said tube comprising said trap portion.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |