U.S. patent number 3,881,499 [Application Number 05/396,138] was granted by the patent office on 1975-05-06 for water pipe or bong.
Invention is credited to Peter Robin Barnhard, Michael Duncan McFadden.
United States Patent |
3,881,499 |
McFadden , et al. |
May 6, 1975 |
**Please see images for:
( Certificate of Correction ) ** |
Water pipe or bong
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: |
McFadden; Michael Duncan
(Potomac, MD), Barnhard; Peter Robin (Bethesda, MD) |
Family
ID: |
23566010 |
Appl.
No.: |
05/396,138 |
Filed: |
September 11, 1973 |
Current U.S.
Class: |
131/173; D27/162;
131/214; 131/222 |
Current CPC
Class: |
A24F
1/30 (20130101) |
Current International
Class: |
A24F
1/30 (20060101); A24F 1/00 (20060101); A24f
001/30 () |
Field of
Search: |
;131/173,206,214,215R,223,222,179,194,225 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
13,570 |
|
May 1881 |
|
DD |
|
558,185 |
|
Dec 1943 |
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GB |
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36,108 |
|
Feb 1909 |
|
OE |
|
Other References
Bong Pipe Manuel, Jak's Brand Prod. Co., P.O. Box 9, College Park,
Maryland..
|
Primary Examiner: Reich; Joseph S.
Attorney, Agent or Firm: Strauch, Nolan, Neale, Nies &
Kurz
Claims
What is claimed and desired to be secured by Letters Patent is:
1. 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.
2. 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.
3. 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.
4. The bong as recited in claim 1, wherein means are provided for
mounting said bowl on said divider plate means.
5. 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.
6. 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.
7. 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.
8. 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.
9. 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.
10. 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.
11. 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.
12. 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.
13. 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.
14. 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.
15. 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.
16. 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.
17. 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.
18. 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.
19. 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.
20. 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.
21. The bong as recited in claim 20, wherein said tubes are made of
an acrylic plastic.
22. The bong as recited in claim 20, wherein said tubes are made of
a cast acrylic plastic.
23. 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.
24. 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.
25. 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.
26. The bong as recited in claim 23, and further comprising a base
on said bong.
27. 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.
Description
BACKGROUND OF THE INVENTION
In the orient, a device unique in appearance and known as a water
pipe has been in existence and popularly used to smoke organic
materials, including tobacco. The materials smoked in the orient
are usually harsh, hot and very irritating to the lungs of the
smoker if not tempered in some manner. Water pipes are one such
means and the classic water pipe includes a water chamber
interposed between the bowl, wherein the substance being smoked is
burned, and a mouthpiece so that the smoke bubbles through the
water to clean the smoke of ash and contaminants and to cool the
smoke, thus making an otherwise very unpleasant experience quite
pleasurable.
Very recently, water pipes have made an appearance in the Western
World and are rapidly gaining in popularity. A few attempts at
applying Western technology to the otherwise Eastern device have
been made.
An early but complex water pipe is disclosed in U.S. Pat. No.
110,594 issued Dec. 27, 1870. A tobacco chamber is suspended by
smoke pipes conveying smoke to a lower, water chamber having a
sponge above the water and a mouthpiece tube connected to the top
of the water chamber. The tobacco chamber includes perforated
convoluted passageways to air cool the smoke and a small, sponge
filled chamber for the collection of ash and oil by-products of
tobacco combustion. A far simpler device is disclosed in U.S. Pat.
No. 754,398 including a smoke and ash collection chamber about the
tobacco bowl and tubing to convey the smoke to a lower water
chamber to cool the smoke before it passes to the mouthpieces.
Another variant in the art of water pipes with ash traps is
disclosed in U.S. Pat. No. 1,513,147, where an ash trap is disposed
vertically between an upper bowl and a lower water chamber.
Four other U.S. Pats., No's. 2,690,753; 2,805,670; 2,807,268; and
2,825,342 disclose conventional Western style smoking pipes having
small water chambers and convoluted passageways to clean and cool
the smoke.
A popular, presently marketed water pipe known as a bong is not
disclosed in the prior patented art just discussed. The basic
components of a bong are a single, elongate open pipe about 1 1/2
inch in diameter seated on a square base to seal the bottom, the
open upper end of the pipe being pressed against the face about the
mouth of the smoker, a bowl for burning organic material and a
single tube mounting the bowl and leading into the lower end of the
elongate pipe at an angle, near the base of the bong. Water is
placed in the lower end of the open pipe to a level above the
junction of the bowl tube and open pipe so that smoke is bubbled
through the water to cool the smoke and wash ash and contaminants
from the smoke. Thus the main pipe is a combined water and
inhalation chamber. The water must be changed frequently as it
quickly becomes contaminated by combustion by-products. A "shotgun"
or a small diameter hole may be located medially at the rear of the
pipe above the water which is closed by the thumb of the smoker
during initial stages of a smoke and is opened at the end of the
smoke to ease the draw as smoke in the chamber is inhaled.
None of these aforementioned prior art water pipes disclose a bong,
having a water chamber located above, rather than below, an ash
trap, and including extensive, cooling tubing terminating in the
water chamber at different levels whereby one or more of the
inhalation tubes may be used, the water chamber thus being disposed
so that the possibility of ash and oils entering the water is
virtually eliminated so that pleasurable, clean and cool smoking
may be enjoyed.
SUMMARY OF THE INVENTION
It is a primary object of the invention to provide a bong having a
water chamber to cool the smoke, the water chamber being disposed
above an ash and contaminant trap so that the possibility of
contamination of the water is virtually eliminated.
It is another object of the invention to provide a bong made of
synthetic material such as Plexiglas with a substance burning bowl
insulated from the remaining bong structure.
It is yet another object of the invention to provide a bong having
a substance burning bowl with high angled side walls whereby
burning material tends to slide easily from the bowl to a lower ash
trap so that the bowl remains clean over a long period of use.
It is a further object of the invention to provide a water bong
with a base having an ash and contaminant trap, the trap including
a removable plug to facilitate cleaning of the trap.
It is an object of the invention to provide a water bong with an
ash and contaminant trap disposed beneath a smoke cooling water and
inhalation chamber, the various sections being constructed in
unitary fashion with divider plates segregating the sections.
It is still another object of the invention to provide a bong with
a water chamber and an ash and contaminant trap beneath the water
chamber, and a substance burning bowl located adjacent the base of
the water chamber, with bifurcated primary tubing from bowl to trap
and secondary tubing, segregated from the primary tubing, directed
from the ash trap to the water chamber.
It is yet a further object of the invention to provide a bong with
a water chamber and contaminant trap beneath the water chamber
divided by a perforated plate into a lower, collection trap and an
upper, primary smoke cooling chamber.
It is still another object of the invention to provide a bong
having a tapered upper neck portion to direct fumes from the
substance burning bowl away from the eyes and face of the smoker,
and an upper, gently curved mouthpiece end to comfortably fit about
the mouth of the smoker.
Yet another object of the invention is to provide a bong having
water chamber, ash trap and base portions interfitted with each
other for integral, secure construction.
Yet a further object of the invention is to provide a bong having
an upper, water chamber and an ash and contaminant chamber disposed
therebeneath, with primary bifurcated tubing from a substance
burning bowl to the trap, and at least four secondary tubes from
the trap to the water chamber.
Yet still another object of the invention is to provide a bong with
a water chamber and an ash and contaminant trap disposed beneath
the chamber, with primary tubing from a substance burning bowl to
the trap and secondary tubing from the trap through the base of the
water chamber and into the water chamber, within the walls of the
bong.
Further novel features and other objects of this invention will
become apparent from the following detailed description, discussion
and the appended claims taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF DRAWINGS
Preferred structural embodiments of this invention are disclosed in
the accompanying drawings in which:
FIG. 1 is a perspective view of the bong;
FIG. 2 is an enlarged scale elevation view of the substance burning
bowl of the bong;
FIG. 3 is an enlarged scale, partial vertical section view through
the bowl and primary tubing as shown in FIG. 1;
FIG. 4 is a section view similar to FIG. 3, disclosing another
embodiment of the invention;
FIG. 5 is an enlarged partial, detail, elevation view taken from
the front, mid-portion of the bong as shown in FIG. 1;
FIG. 6 is an enlarged, partial section view taken along lines 6--6
of FIG. 1;
FIGS. 7 and 8 are partial detail views disclosing the smooth, mouth
fitting contour of the upper end of the bong;
FIG. 9 is a bottom view of the base of the bong;
FIG. 10 is a partial central sectional view taken along lines
10--10 of FIG. 9;
FIG. 11 is a partial view of the base of the bong similar to FIG. 9
but showing another embodiment of the base;
FIG. 12 is a partial section view taken along lines 12--12 of FIG.
11;
FIG. 13, drawn to a smaller scale, is a perspective view disclosing
another embodiment of the bong of the present invention;
FIG. 14 is a partial central sectional view of a bong disclosing
yet another embodiment of the invention;
FIG. 15 is an elevation view of still another embodiment of the
invention; and
FIG. 16 is a partial section view, similar to FIGS. 10 and 12,
showing another embodiment of the base.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
A water pipe bong 10 in the preferred embodiment of the invention
is constructed to rest in an upright disposition on its base 12.
The bong 10 is divided into an upper, inhalation and water chamber
14, partially filled with water or other cooling liquid 16, the
lower level of which as best seen in FIG. 14, is defined by a plate
22 at the lower end of the chamber 14, the upper level of which is
indicated at 18, a primary smoke cooling chamber 20 beneath chamber
14 and divided therefrom by said plate 22 and a lower ash and
contaminant trap 24, divided from chamber 20 by a perforated spacer
plate 26 (FIGS. 1 and 6). The substance to be burned is placed in a
bowl 28, mounted on a forward portion of the upper dividing plate
22, and fumes (combustion products) are conveyed to trap 24 by
primary tubing 30, bifucated at 32 beneath bowl 28, extending
through plate 26 for structural integrity and terminating at the
interior of the sidewall of trap 24, preferably flush therewith to
ease cleaning of the trap as well as to provide an aesthetically
pleasing structure. Ashes and other contaminants drawn from the
burning substance in bowl 28, by reason of the smoker's inhalation
on the mouthpiece end 34 of inhalation and water chamber 14, will
remain in trap 24 while smoke passes upwardly through perforated
spacer plate 26 into the primary smoke cooling chamber 20.
Thereafter, smoke passes through secondary tubing 36a and 36b into
a body of cooling water 16 located in the lower portion of chamber
14. As a result of low pressure created above the water level, the
smoke is drawn out of the lower ends of tubes 36a and 36b, bubbling
up through and cooled by the water before passing into the upper
portion of tube 14 and thence on to the mouth and lungs of the
smoker via mouthpiece end 34.
Tube 36a extends only partially downwardly into cooling water 16
while tube 36b terminates near the bottom of chamber 14 as most
clearly shown in FIG. 5. The reason for such structure is that,
during initial, slow draw on the bong, only tube 36a is operative
due to the water pressure differential levels between the lower
ends of tubes 36a and 36b so that air is drawn very slowly through
the substance burning in bowl 28. During this slow draw time,
chamber 20 and then chamber 14 above water level 18 will gradually
fill with water cooled smoke. As combustion of the substance nearly
or completely terminates in the bowl 28, which will be observed by
the smoker, the slow inhalation may be changed to a hard draw by
the smoker's lungs and diaphragm so that ash and contaminants are
sucked from bowl 28 into trap 24. Simultaneously, the hard draw on
mouthpiece end 34 will cause both tubes 36a and 36b to become
operative so that clean air is drawn in from the now empty bowl 28
behind the smoke present in chambers 20 and 14 and the smoker then
draws all smoke into his lungs by visually observing the
diappearance of smoke from chambers 20 and 14.
By having trap 24 located beneath water chamber 14, and by
providing chamber 20 and tubing 36a and 36b, a tortuous path of
travel for smoke is provided by simplified structure to partially
cool the smoke before it ever enters water 16. But more
importantly, the disclosed structure virtually eliminates any
possibility of ash and solid contaminants from trap 24 entering
water 16, due primarily to the force of gravity retaining ash and
solid contaminants in trap 24. Thus, the water or other cooling
liquid 16 will remain clean and clear even after repeated uses of
the bong, thereby avoiding the necessity of changing the water 16
repeatedly, as is a common nuisance with prior art bongs wherein
smoke is drawn directly into the cooling water from the bowl or,
wherein when an ash trap is provided, it is located above the water
and will periodically overflow or leak into the cooling water.
Preferably, all components of bong 10 are made of a suitable,
durable synthetic material such as Plexiglas. Of course, Plexiglas
is a trademark for an acrylic resin or plastic, more particularly a
glasslike thermoplastic made by polymerizing acrylic or methacrylic
acid or a derivative of either, especially an ester (as methyl
methacrylate). Chambers 14 and 20 and trap 24 are made of
individual tubular sections of clear, cast Plexiglas of like
diameter joined to plates 22 and 26 and base 12 by suitable cement.
Cast Plexiglas is preferred to extruded Plexiglas to avoid crazing
and cracking of the tubular sections, particularly where tubes 36a
and 36b extend outwardly from smoke chamber 20. For the sake of
aesthetics, tubes 30, 36a and 36b may be colored Plexiglas and one
or more of plates 22, 26 and base 12 may be clear or opaque.
Referring now to FIGS. 2, 3 and 4, bowl 28 is shown having a
depending threaded end 38 retained in a shell 40 of refractory or
other heat insulating material to preserve the integrity and
prevent melting of plate 22 in which it is mounted. Shell 40 may
terminate at plate 22 (FIG. 3) or, if a more rigid structure is
deemed necessary, may extend beneath plate 22 as shown at 42 in
FIG. 4 to secure bowl 28, plate 22 and tubes 30 together as an
integral unit. The threading of end 38 of bowl 28 assures firm
interengagement of bowl 28 with material 40 but, alternatively, end
38 may be externally plain or smooth (not shown).
Additionally, the interior side wall 44 of bowl 28 has a gradual
taper which provides a steep-sided smooth, concave curvature,
frusto-conical configuration, terminating in an orifice 46 about
one-eighth inch in diameter for a significant reason. Prior art
bowls have a rather flat and shallow internal surface so that over
a period of repeated use, contaminants tend to build up in the bowl
or even jam the orifice leading to the inhalation tubes. Thus,
prior art bowls must be constantly cleaned. However, bowl 28 of
this invention with its steep side walls not only seems to permit
complete combustion of the substance being burned therein but also
allows residue and ash from combustion to be completely drawn from
the bowl in that the high angled side wall 44 presents a minimal
friction drag surface tending to retain combustion by-products and
substantially reduces caking of by-products on wall 44.
Additionally, the one-eighth inch diameter of orifice 46 is both
small enough to retain the substance in the bowl during combustion
yet large enough to permit combustion by-products and any unburned
contaminants in the substance being burned to be easily withdrawn
from the bowl, down tubes 30 to trap 24.
Mouthpiece end 34 is clearly illustrated in FIGS. 1 and in the
detail views, FIGS. 7 and 8. Mouthpiece end 34 is gently contoured
and rounded as shown to provide a surface to fit comfortably the
portions of the face about the mouth of the smoker as well as to
assure a leakproof, tight seal between mouthpiece end 34 and the
mouth of the smoker.
The base 12 of bong 10 may be provided with a removable plug 48 to
facilitate cleaning of ash and contaminant trap 24. Incidentally,
it has been found that these combustion products include unburnt
material than can be resmoked, so the provision of plug 48 permits
both cleaning of the bong and reuse of the deposits in trap 24. In
the embodiment shown in FIGS. 9 and 10, plug 48 is a resilient
plastic or nylon plug, having a friction fit into a mating opening
50 in base 12, and easily removed and replaced by provision of a
graspable tab 52 formed in the recessed undersurface 54 of plug 48.
An alternative plug 56 is shown in FIGS. 11 and 12, having
retention keys 58 fitted through vertical, mating slots 60
terminating in an open circular keyway 62. A seal 64 may be
inserted in keyway 62 to provide a fluid tight seal between base 12
and plug 56. Plug 56 is inserted as shown in FIG. 11 with keys 58
inserted into slots 60, and then rotated a quarter turn by grasping
plug tab 66 to lock plug 56 in place.
As discussed above, chambers 14 and 20 and trap 24 may be cemented
where appropriate to plates 22 and 26 and base 12. A more sturdy
form of construction is disclosed in FIG. 16 wherein a recess 68 is
provided in base 12 to receive the mating lower circumferential
portion of trap 24, whereafter the pieces are cemented together. If
desired, a similar form of construction may be provided for joinder
of chambers 14 and 20 to plate 22 and joinder of chamber 20 and
trap 24 to perforated plate 26 (not shown).
A significant feature in the construction of water chamber and
inhalation pipe 14 is a rearward bend 70 formed mesially therein.
The bend is provided so that, during smoking, fumes from the
substance burning in bowl 28 are directed upwardly but away from
the eyes and face of the smoker.
Other embodiments of bong 10 are disclosed in FIGS. 13, 14 and 15.
In FIG. 13, the bong 10 is similar to the bong shown in FIG. 1
except that plate 26 has been eliminated so that a single combined
primary smoke cooling and ash and contaminant chamber 72 is located
beneath plate 22. In FIG. 14, tubes 36a and 36b are formed
internally of the bong rather than externally as in previous
embodiments to prevent the possibility of breakage. In FIG. 15,
four tubes 36a, 36b, 36c and 36d are provided for directing smoke
from smoke chamber 20 to water 16 in chamber 14 and each terminates
within chamber 14 at progressively deeper levels so that only two
or three operate during initial, slow draw on the bong whereas all
four tubes become operative at the end of the smoke, during the
hard draw hereinbefore explained.
The invention may be embodied in other specific forms without
departing from the spirit or essential characteristics thereof. The
present embodiments are therefore to be considered in all respects
as illustrative and not restrictive, the scope of the invention
being indicated by the appended claims rather than by the foregoing
description, and all changes which come within the meaning and
range of equivalency of the claims are therefore intended to be
embraced therein.
* * * * *