US3308834A

US3308834A - Pipe

Info

Publication number: US3308834A
Application number: US27163A
Authority: US
Inventors: Wideen-Furedy Christina
Original assignee: Individual
Current assignee: Individual
Priority date: 1960-05-05
Filing date: 1960-05-05
Publication date: 1967-03-14
Anticipated expiration: 1984-03-14

Description

Sheets-Sheet `1 INVENTOR. Frank Fu/edy F. FUREDY March 14, 1967 PIPE Filed May 5, 1960 FIG. 15

F. FUREDY March 4, 1967 PIPE Filed May 5, 1960 2 Sheets-Sheet 2 Pf6 i3 IN1/Ewan. Fran/f Furedy BY W ,w/ @L MyW/Am United States Patent O 3,308,834 PEPE Frank Furedy, 18 E. Huron St., Chicago, Ill. 60611; Christina Wideen-Furedy, heir of said Frank Furedy, deceased Filed May 5, 1960, Ser. No. 27,163 4 Claims. (Cl. 131-196) This invention relates to smokers articles. More particularly, it relates to a new and improved smoking pipe.

It is an object of the present invention to provide a tobacco smoking pipe which comprises a non-charririg, non-absorbent container in which the tobacco is s moked and which is separable from other parts of the pipe for cleaning.

A further object is to provide a tobacco smoking pipe comprising a non-charring, non-absorbent containerl in which the tobacco is smoked and a decorative, protective, and heat dissipating housing for said container.

Still another object is to provide a tobacco smoking pipe comprising a multiplicity of separable parts formed of a plurality of materials, each having characteristics particularly advantageous for the function of the part formed thereof, one of said parts being a non-charring, non-absorbent container in which the tobacco is smoked.

A still further object is to provide a tobacco smoking pipe comprising a multiplicity of parts which are easily separated for washing and cleaning to remove products of tobacco combustion such as ash, tar, and other residue, one of the parts being a non-charring, non-absorbent container in whichthe tobacco is smoked.

Other objects will appear hereinafter,

In order that the invention may be better understood, reference is made to the accompanying drawings which form a part of this specification and in which FIGURE 1 is a top plan view of a smoking pipe enibodying the features of the present invention;

FIGURE 2 is a side elevation of the pipe shown in FIGURE 1;

FIGURE 3 is a central vertical cross-sectional view of the pipe on the line 3 3 in FIGURE 1;

FIGURE 4 is a fragmentary exploded view in perspective of portions of the same pipe;

FIGURE 5 is a front end elevational view of the pipe with the capping ring, bowl and bowl base omitted;

FIGURE 6 is a view similar to FIGURE 5 but showing the sections of the bowl housing in open position;

FIGURE 7 is a fragmentary view of the inner bottom wall of the bowl housing of the pipe showing one of the spring hinges on which the two sections of the bowl housing turn in moving between the positions illustrated in FIGURES 5 and 6;

FIGURE 8 is a view in cross section on the line 8 8 in FIGURE 7;

FIGURE 9 is a view similar to FIGURE 8 showing the bowl housing sections in open position;

FIGURE 10 is a fragmentary View of another portion of the inner bottom wall of the bowl housing intermediate the spring hinges with the bowl sections in open position;

FIGURE 11 is a View in cross section on the line 11-11 in FIGURE 10;

FIGURE 12 is a view similar to FIGURE 11 but with the bowl housing sections in closed position;

FIGURE 13 is a view partially in cross section on the line 13 13 in FIGURE 1 with the capping ring, bowl and bowl base omitted;

FIGURE 14 is a side elevation of a spring clip employed in the pipe shown in FIGURES l to 3;

FIGURE 15 is a side elevation of the interior of a part of the pipe housing; and

Patented Mar'. 14, 1967 FIGURE 16 is an end elevation of the stem portion of the part shown in FIGURE 15.

Referring particularly to FIGURES 1, 2, and 3, it will be seen that the new and improved pipe forming the subject of this invention, which is designated generally 10, comprises a bowl section 12 and separable stem 14. While the bowl section 12, as will appear, is formed of a number of separable portions, the stem 14 is preferably of the usual one-piece construction. This stem 14 may be formed of any desired material within the scope of the invention, but by reason of the current preference for nylon stems due to their numerous advantages, it is preferably formed of that material.

The exterior configuration of the stem 14 is generally like that of pipe stems heretofore known. It is provided at one end with the usual bit 16 which aids the user in supporting the pipe between his teeth. As may be seen in FIGURES 1 and 2, the stern 14 adjacent to bit 16 is provided with relatively broad, approximately liat, top and

bottom walls

18 and 20 rounded oif slightly at each side Where they merge with relatively very narrow and comparatively at

side walls

22 and 24. These

side walls

22 and 24 taper in slightly forwardly of the pipe stem 14 from the bit 16 for about one-third of the length of the pipe stern to approximately the place indicated by the reference numeral 26. In contrast, the at top and bottom walls taper outwardly in a slightly convex curve from the bit 16 forwardly of the stern 14 for about twothirds of the length of the pipe stem to approximately the place designated by reference numeral 28 where they merge with a substantially cylindrical portion 30, which, however, still has a very slight outward taper forwardly of the stern. From approximately the region indicated by the reference numeral 26, the side walls again liare outwardly very slightly and gradually become wider and more curved until they merge gradually into the previously described cylindrical wall portion 30.

Forwardly of the cylindrical portion 30, the stem 14 is provided with an approximate cylindrical neck portion 32, thereby forming an annular shoulder 34 at the juncture of the neck 32 and the cylindrical portion 30. Although the portion 32 is approximately cylindrical, it does have a slight inward taper towards its outer end so that it may be engaged in a Wedging relation within the stem portion of the housing of the bowl section 12, preferably with the shoulder 34 approximately in engagement with the end of the stem section of this housing, as may be seen in the drawings.

Turning now to the interior conguration of the stein 14 as contrasted with the exterior coniiguration discussed above, it will be noted that stem 14 is formed with an opening 36 extending substantially centrally thereof throughout the full length of the stern. At the bit end this opening 36 has 'a conventional rectangular configuration, being several times as wide as it is high. At the opposite end of the stem 14 in the neck portion 32, the opening 36 is much larger in cross-sectional area than at the bit end and preferably is substantially cylindrical in configuration. Since a number of -pipe smokers prefer to employ a filter, such as the elongated tubular lter available wherever smokers articles are sold, the opening 36 from the neck 32 rearwardly of the stern for :approximately two-thirds of its length is continued with the same sized cylindrical configuration to enable one of these tubular filters to be received therein. Between the inner end of this generally tubular portion of the opening 36 and the =bit end, the opening gradually changes in shape until within the bit 16 it assumes the previously described rectangular form.

Referring now to the bowl section 12, as best seen in FIGURES 3 and 4, this section is composed of a num.

ber of separable parts, including a bowl housing 38, a bowl base 40, a bowl 42, and a bowl housing cap 44.

Considering rst the bowl housing 38, it will be seen that it comprises a. portion 46 in which the bowl 42 is housed and a laterally extending stem portion 48. The housing 46 encloses a generally cylindrical chamber 50 which is open at the top and is provided with a dishshaped bottom portion 52 having a relatively large central opening 54 provided therein. Exteriorly, the housing portion 46 mainly for aesthetic purposes is provided with a bulbous configuration about the cylindrical interior chamber which merges gradually into a bottom wall portion which has a dish-s-haped configuration substantially the same as that of the chamber within this housing.

The housing 46 comprises a. lower ring S6 more or less resembling in form a washer with a rounded bottom face, in which the above described opening 54 is provided. Secured to and extending upwardly from the ring 56 are a plurality of ribs S, 68, 62, and 64. At their upper ends, these

ribs

58, 60, 62, and 64 are integral with a band 66 which surrounds the top of the cylindrical chamber within the housing 46. Supported on the ribs intermediate lthe ring 56 and the band 66 are -a plurality of ringlike

circular iins

68, 70, 72, 74, 76, and 78. The number and spacing of these fins may be varied as desired although the arrangement shown is preferred. The inner edges of these

fins

68, 70, etc. and the inner faces of the

ribs

58, 60, 62, and 64 together with the ring 56 and the band 66, except as hereinafter described, serve to deiine the chamber within the housing 46. To give the structure of housing 46 adequate strength and at the same time desirable heat radiating qualities, the thickness of the fins is gradually reduced from its inner annular edge to its outer annular edge. It will also be noted that the width of the

various tins

68, 70, etc. is varied to provide the desired bulbous appearance, fin 74 being the widest and the other lins above and below it having successively decreasing widths.

As may be seen in FIGURES 3 and 4, the stem portion 48 of the bowl housing 38 extends rearwardly from the bottom of the housing 46. This stem portion 48 is approximately cylindrical in form although it does have a slight inward taper from the housing section 46 toward the rear or free end of the stern portion 48. The stem portion 48 is provided with a centrally located opening 80 extending longitudinally throughout the f-ull length thereof. The portion 82 of this opening, as seen in FIG. 3, in which the neck 32 of the stem 14 is received, is of relatively large diameter, and as shown is provided with a taper corresponding to that on the neck 32 so that the neck 32 is received Vtherein in a relatively tight wedging relationship preferably with the shoulder 34 approximately in engagement with the stem portion 48. Forwardly of lche opening portion 82 the opening tapers inwardly rather sharply to provide a portion of reduced diameter as at 84, the diameter of this portion being approximately the same as that of the opening 36 in the neck 32 of stern 14. The opening 80 is reduced inwardly again slightly to provide a portion 86 of still smaller diameter which serves a purpose to be described. Between the portion 86 and the place where it communicates with the bowl housing section 46, the opening 80 has a substantially increased diameter as at 88 as shown in FIG. 3, :providing a shoulder 90, to the surface of which the axis of the stem portion 48 is substantially perpendicular.

In contrast wit-h the opening

portions

82, 84, and 86 which are surrounded by a continuous wall 92, the portion 88 of the opening 80 is defined by a wall similar to that of the housing portion 46. The wall defining the portion 88 of the opening 80 comprises a top section 94 and a bottom section 96, the form of which in cross section is shown in FIGURE 13. The top section 94 is thickened slightly along its opposite edges providing what, in effect, amounts to contnuations of the rib 70 of the bowl housing portion 46. The bottom wall section `96, as best seen in FIGURES 2 and 3, merges with the lower ring 56 of the housing 46 so as, in eifect, to constitute a continuation thereof. Secured thereto and extending between

walls

94 and 96 are four

ribs

98, 100, 102, and 104 (FIGURES 2 and 3), the ribs 98y and being located adjacent the shoulder 98 and on the opposite sides of lthe pipe, respectively, and the rib's 102 and 104 also being located, respectively, on the opposite sides of the pipe and positioned about midway between the -bowl housing portion 46 iand the

ribs

98 and 100. The ribs just described provide support for a pair of

hns

106 and 108 extending longitudinally of the stem portion 48 on the opposite sides thereof and each constituting in appearance a continuation of the fin 68 of housing portion 46 although their widths are somewhat less than that of the fin 68.

The above description has dealt with the bowl housing 46 as it appears when it is in the closed position shown in FIGURES 1, 2, 4, and 5. However, to provide access to the interior of this housing, it is formed in two parts. The separation between these two parts is provided, in part, along lines lying approximately in a plane defined by the axis of the bowl housing portion 46 and the axis of the stern portion 48. This division longitudinally of the stern portion 48 terminates a-t the face of the shoulder 90 where it intersects a division laterally of the stem extend-ing outwardly from the said central division along the vface of the shoulder 90' to one side only of the stern portion 48. These divisions are indicated in FIGURE l by

reference numerals

110 and 112, respectively. In the further description of the invention that portion of the bowl housing 38 which is integral with lthe part of the stem portion 48 and including the wall 92 will be designated 'by the reference numeral 114 and the separate smaller part of the bowl housing will be designated by the reference numeral 116.

It will be apparent that by reason of the formation of the bowl housing 3-8 in two parts, a number of elements in that housing previously described are also formed in two parts, one set being integral with the portion 114 and the other with the portion 116. More particularly, the rib 62 is one such element and particular reference is made thereto because it differs materially in its structure from the other ribs shown and described. Referring to FIGURES 2, 3 and 13, it is pointed out that from the tin 72 upwardly to the band 66, the rib 62 is similar to the rib 58 which is also cut by the division between the two

parts

114 and 116. The portion of the rib 62 in the part 114 is formed integrally with the forward end of the wall 94 between the

tins

72 and 70 and below the iin 70 is curved downwardly and forwardly approximately along the line of intersection of the stem portion 48 and the bowl housing portion 46. In like manner, the other half of the rib 62 is similarly arranged in the part 116 of the bowl housing.

Because of the division at 112 (see FIGURE 1), it has been found desirable to give further strength to the end of the stem portion integral with the part 116 of the housing 38 (see FIGURE 5). This is accomplished as indicated in FIGURES 15 and 16 by extending the rib 98 inwardly along the face of the shoulder 9'0. It is necessary, however, to relieve the inwardly extending portion of the rib 98 as at 118 so that it will not extend over the end of the opening 86.

For decorative and aesthetic reasons, the part 114 of the bowl housing 38 may be provided with a semiannular indentation 120 corresponding to the line formed by the intersection of the division 112 with the outer surface of the stem portion 4S. The appearance of the pipe may be further enhanced and the bowl section strengthened at the same time by forming the opposite sides of the bowl housing 38 wit-h generally diamond shaped

portions

122, and 124 as maybe seen in FIGURES 2, 4, 5, and 6. These diamond shaped portions are centered approximately on the

ribs

60 and 64, respectively, and cut these ribs olf 'between the ns 72 and 76 as indicated in FIGS. 2 and 15. As also appears in these figures, the two diamond shaped

portions

122 and 124, which are identical, interrupt and merge with the fin 74 which is substantially in alignment with t-he long axis of these diamond shaped portions. In order to minimize the weight of the housing 38, the internal portions only of each of the generally diamond shaped

portions

122 and 124 are hollow as shown at 126 in FIGURE 15.

FIG-URES 7 to 9 illustrate the details of the hinge connection provided between the

parts

114 and 116 along their bottom edges between the opening 54 in the bottom of the bowl housing 3-8 and the shoulder 90 on the stem portion 48 so that the two

parts

114 and 116 may be moved relatively to each other between the positions shown in FIGURES 5 and 6 and retained in these two positions. To this end, the portion 116 along the bottom inner face of the lower wall 9'6 is provided with an elongated recess 128 which is arcuate in cross section as indicated in FIGURES 8, 9, and 12. In the corresponding position on part 114 an elongated rib 130 having a convex arcuate surface is provided. The rib 130 when positioned in the groove 128 thus slides on the surface of groove 128 to guide pivotal movements of

parts

114 and 116 relative to each other about the axis of rib 130i.

Attention is next directed to the fact that the part 114 is provided with a pair of generally

rectangular recesses

132 and 134 formed in the inner portion of the bottom wall 96 intermediate the ends of rib 130 and extending laterally of stem portion 48 froml the wall immediately above rib 130. As best seen in FIGURES 3, 8 and 9, the bottom walls of these recesses 132 and 134- are provided adjacent the rib 130l with convex surfaces as shown at 136 curving upwardly from just above rib 130. About midway laterally of the bottom Wall of each recess, these convex surfaces intersect a substantially vertical wall as at 138. From this vertical wall laterally outwardly of stem 48 the remainder of the bottom wall of eac-

h recess

132 and 134 is at as at 139 and is approximately aligned with the forward edge of the recess which is adjacent to rib 130.

In like manner, as shown in FIGURE the part 116 is provided with a corresponding pair of

recesses

140 and 142 disposed, respectively, opposite to and in alignment with

recesses

132 and 134 with which they are substantially identical. Thus, the 'bottom walls of

recesses

140 and 142 are provided adjacent the groove- 128 with convex surfaces as shown at 144 curving upwardly from just above groove 128. They are also provided as at 146 with vertical walls corresponding to wall 138 and with a flat .portion 148 disposed laterally outwardly of wall 146 and like wall 139 approximately aligned with the forward edge of the recess which is adjacent to groove 128.

The

parts

114 and 116 are resiliently hinged to each other and held in assembled relation with rib 130` seated in groove 128 by a pair of identical spring clips 150 and 152. FIGURE 14 shows one of these spring clips 150 in the form it takes before it is assembled with

parts

114 and 116 from which it may be seen by comparison with FIGURES 8 and 9 that opposed ends 154 and 156 of clip 150 are much closer together in FIGURE 14 than they are after the clip is assembled as shown in FIGURES 8 and 9. To assemble

clips

150 and 152 with

parts

114 and 116, the ends 154 and 156 of one of the clips are spread apart and then seated, respectively, behind

vertical walls

138 and 146 of one of the opposed pairs of recesses as shown in FIGURES 8 and 9 and the other clip is then positioned in like manner in the other pair of recesses. Since the ends of the

clips

150 and 152 are sprung outwardly when they are so assembled, they tend to press inwardly on

walls

138 and 146, thus pressing rib 130 into groove 128.

To aid in maintaining the

parts

114 and 116 in this assembled relationship and to aid in aligning these parts properly in their closed position, the part 116 is provided with an elongated tongue 158 extending laterally outwardly from the wall 160' immediately above the groove 128 intermediate the ends of the

recesses

140 and 142. As may be seen in FIGURE 12, the bottom face 162 of tongue 158 is flat and substantially perpendicular to the wall 160 on which it is mounted and is likewise aligned with the line of intersection of that wall with the groove 12S. Moreover, as shown in FIGURES 1l and 12, the bottom face 162 of the tongue 158 rides on the surface of rib 130 serving to guide

parts

114 and 116 for proper relative movements and also aiding in maintaining them in assembled relation.

To receive and cooperate with the tongue 158 when

parts

114 and 116 are in closed position, the part 114 is provided with a slot 164 disposed in the wall 166 thereof in opposed relation to the tongue 158. As may be seen, the lower side wall 168 of slot 164 is substantially perpendicular to wall 166 and is aligned with the top of rib 130 in a relation corresponding to that of groove 128 and tongue 158. When

parts

114 and 116 are in closed position, it will be seen that the combination of tongue 158 and slot 164 aids in maintaining these parts in proper alignment.

To further aid in maintaining this alignment, the wall 94 on part 114 is thickened on its inner face from the shoulder forwardly to approximately the forward edge of rib 104 and the thickened portion is extended laterally across the plane of the division to provide a guide 170. The horizontal configuration of the guide 170' is indicated yby the dotted lines in FIGURE l and its vertical `cross-sectional extent is clearly shown in FIGURE 3 and its location relative to the wall 94 on part 114 is also indicated in those gures. It will be apparent that when

parts

114 and 116 are in closed position as shown in FIG- URES 5 and 13, for example, the guide 170 extends substantially in Icontact with the inner face of that portion of wall 94 carried by part 116 and cooperates with the tongue and slot combination 15S-164 in maintaining the desired alignment.

Referring back now to the band 66 on top of housing portion 46, it is pointed out that pairs of reinforcements 172 and 174 (FIGURE 5) are provided on the opposite sides of each of

ribs

58, 60, 62, and 64 extending between band 66 and the underlying n 78 and integral with the band, 1in, and adjacent rib. Band 66 is thus firmly supported.

While the spring hinge structure previously described tends to maintain

parts

114 and 116 in closed relation, it is desirable to prevent these parts from being moved inadvertently to open position. To this end, cap 44 is provided to t over band 66. As may be seen in FIGURE 4, cap 44 comprises a ring-like crown 1'7'6 provided with an outwardly flaring annular skirt 178 depending from its outer rim so that it blends into the general outer configuration of bowl housing 46.

On the inner surface of skirt 178 adjacent to its lower edges and in diametcally opposite positions, the skirt 178 is provided with a pair of locking

bosses

180 and 182. To receive the bosses and lock cap 44 in position thereon, band 66 is provided on opposite sides with a pair of L-shaped

recesses

184 and 186 having, respectively, legs 188 and 190 extending vertically from the top to the bottom of 'band 66. The other legs 192' and 194 of these recesses each extends adjacent the bottom edge of band 66 in a clockwise direction from the vertical leg as viewed from above band 66 (see FIGURE 4). From the upper side of each of

legs

192 and 194 adjacent the respective legs 188 and 190 rounded projections 196 and 198, respectively, extend downwardly into the corresponding recess as shown. To lock cap 44 on housing 46, the cap is positioned so that bosses and 182 are aligned with the vertically extending legs 188 and 190. The cap 44 is then pushed downwardly on 'band 66 with the bosses 7 extending in the two recesses until

bosses

130 and 182 are each aligned with one of the

legs

192 and 194. A slight turn of cap 44 in a clockwise direction with respect to `band 66 forces the bosses 181i and 182 past the projections 196 and 198, thereby locking the cap 44 in place.

The cap 44 in addition to removably securing

parts

114 and 116 in closed position also serves to finish off the top of bowl housing 46 and enhance its appearance. Still another function of cap 44 involves the bowl 42. As may be seen in FIGURE 3 when cap 44 is in locked position on housing 46 in the fully assembled pipe, it engages the rim of the bowl 42. The bowl 42 and bowl base 4@ are so mounted in housing 38 that when cap 44 is not in place, the bowl 42 projects above the upper surface -of band 66 and is resiliently retained in that position by the base 4b. Thus, when cap 44 is placed on housing 46, it engages the rim of bowl 42 before it engases the upper surface of band 66. As cap 44 is then pressed downwardly on housing 46, it forces bowl 42 downwardly therein against the resistance of bowl base 40 until

bosses

180 and 182 are in position so that cap 44 can be rotated into locking relation with band 66 as above described. The bias thus placed on bowl base 40 presses bowl 42 against cap 44 in the locked position shown in FIGURE 3 with two advantageous results. In the first place, it maintains

bosses

180 and 182 in the upper part of

recesses

192 and 194 behind the respective bosses 18) and 182 so that cap 44 must be forced downwardly on bowl housing 46 before it can be turned counterclockwise to remove it. In addition, the resilient engagement between bowl 42 and cap 44 steadies the bowl 42 and prevents it from vibrating or shaking about within housing 46.

The details of the construction and mounting of this bowl base 41? land bowl 42 are best seen in FIGURES 3 and 4. The bowl base 40 comprises a portion 200 which serves as the bottom of bowl 42. The lower portion of the outer surface of the bottom 290 has an inverted dome shape and the upper portion is approximately cylindrical in form. Approximately within this cylindrical exterior the interior is likewise cylindrical and is formed with internal threads 202. Below the threads 202 the inside diameter of bottom 2041 is reduced providing a shoulder 264. A short distance below shoulder 264, the inner wall surface of bottom 200y tapers inwardly and downwardly as at 206 to intersect another cylindrical wall portion 2&3 which extends down to a circular concave portion 210 forming the lowermost inner surface of bottom 209.

Extending laterally from the bottom 200 is a stem 212 also forming an integral part of the bowl base 40. In vertical cross section cut by a plane perpendicular to its axis the stem 212 has approximately the shape of a rectangle, the top of which is only slightly shorter than the sides and the bottom portion of which is rounded off to approximately a semi-circle. The top wall of the stem 212 is approximately aligned with the lower edge of the cylindrical portion of the exterior wall of bottom 200i and is indicated in FIGURE 3, the lowermost part of stem 212 is positioned slightly above the lowermost part of the outer surface of bottom 206.

For Iobvious purposes, the stern 212 has an elongated tubular opening 214 formed therein which is relatively small in cross section and extends axially of stem 212 from the outer end thereof and opens into the interior of bottom 2130. As appears in FIGURE 3, the axis of lopening 214 substantially coincides with the imaginary axis of the lower semi-cylindrical portion of stem 212. Within bottom 200 it intersects the inner wall surface across the intersection of the cylindrical -wall 208 and the concave portion 210 although the major portion of this opening is in wall 29S. Finally, it is to be noted that stem 212 adjacent its outer or free end is formed with a short cylindrical section 216, the outer surface of which is approximately concentric with the tubular opening 214 and also with the semi-cylindrical lower portion of stern 212. As best seen in FIGURE 3 of the drawings, the tubular section 216 of stem 212 extends in opening 86 in 'the stem housing 48 when the pipe is assembled. So that stem 212 may be iirmly secured to stern housing 48, the tubular section 216 is given a slight outward taper from the end of stern 212 toward bottom 204i and the opening S6 and tubular section 216 are so proportioned as to permit the latter to be tightly wedged into opening 86 to the extent required to properly center bottom 201) within bowl housing 46.

The last part remaining to be described is the bowl 42 to which reference has previously been made. As may be seen, the overall configuration of bowl 42 is that of a hollow cylinder open -at Iboth its top and bottom ends. Except as hereinafter pointed out, the wall of bowl 42 is relatively thin and of approximately the same thickness throughout its entire extent. Around the top it is thickened slightly and rounded to form an annular head 21S. Adjacent the bottom external threads 220 are provided which project outwardly from the cylindrical wall of bowl 42 so that in the region of the raised portions of threads 220, the wall is also slightly thickened. The lower portion of bowl 42, on which threads 220' are formed, preferably is slightly smaller in diameter than the upper portion so that the diameter measured between the crests of the outwardly projecting threads 221)` is approximately the same as the diameter of the upper portion of bowl 42. As best seen in FIGURE 3, in the assembled pipe the bowl 42 is threaded into the bowl base 40 until the bottom rim of bowl 42 is frmiy seated on the annular shoulder 204.

The pipe is formed yof a plurality of separate parts as described above not only to facilitate cleaning of the pipe but also to facilitate the making of the pipe and the use of a variety of different material in the structure of the various parts of the pipe, the materials used also being a feature of the invention. The materials of which stem 14 is formed have already been set forth above. Bowl 42 is preferably formed of a heat resistant glass such as that sold under the trademark Pyrex. It may, however,

be formed of other non-porous materials which do not adsorb the tobacco combustion products and which are not adversely affected by the heat produced by the burning tobacco and, specifically, which are not charred by such heat and do not give off gaseous products when so heated.

By way of further example, bowl 42 may be formed of stainless steel or from a heat resistant and non-charring plastic material such as the heat resistant vinylidene chloride resins sold under the name Pyro-Saran. It is an important feature of the present invention that the bowl is formed of such noncharring and non-absorbent material and does not require the usual breaking in which is characteristic of briar pipes. Such cake as does build up in this improved pipe can be and is, preferably, removed. In fact, contrary to the common impression associated with briar pipes, it is preferable to wash this improved pipe with water at frequent intervals to remove all tobacco waste products which accumulate in and on it. Such washing, in which a detergent may be used if desired, actually improves the smoking quality of the pipe and at the same time does away with the disagreeable odors associated with old pipes.

Referring next to the bowl base 40, it is pointed out that it may be formed of the same materials of which the bowl may be formed with the exception that it should not be formed of the heat resistant glass because of the liability of breakage, particularly in respect to the stem portion. Even when base 40 is formed of the same material as the bowl 42, they are preferably formed .as separable parts not only to simplify their manufacture but also for ease in cleaning. Thus, the bowl base 40' may be formed of stainless steel or of a non-charring, non-adsorbent and heat resistant plastic material as described above or of any other non-brittle material having the characteri istics indicated above as appropriate for the bowl 42. A particularly preferred material to use in forming the base is a melamine resin composition consisting of approximately equal parts, by weight, of a melamine resin and bre glass. The threaded connection between bowl 4.2 and base 40 shown in the drawings is preferred but other means for removably securing these parts together are within the scope of the invention.

It will be readily apparent that a wide variety of materials may be employed to form bowl housing 38 since it is not in direct contact with the burning tobacco. Preferred materials are various plastics and light metals such yas aluminum, for example. One material found to be particularly satisfactory as combining satisfactory strength with light weight consists of approximately equal parts, by weight, of a melamine resin and nylon.

Whether bowl housing 38 is formed of plastic, metal, or some other material, it is preferable to provide a at surface as at 222 on the bottom extending from under the housing portion 46 rearwardly on the under side of stem portion 48. This is conveniently accomplished by a sanding operation when the housing is formed of plastic. The purpose, of course, is to enable the smoker to stand the pipe upright on a desk, table, or the like.

The advantages of the present invention will be largely apparent from the foregoing description. In addition to the advantages already mentioned, the bowl housing structure by reason of its air cooling features does not become uncomfortably warm even when the pipe is smoked intensively.

It is apparent that many widely different embodiments of this invention may be made without departing from the spirit and scope thereof and therefore it is not intended to be limited except as indicated in the appended claims.

I claim:

1. A tobacco smoking pipe comprising a stern, a bowl and stem housing portion, and a container separable from and mounted in said housing to receive and hold the tobacco while it is being smoked, said container being formed of non-charring, non-absorbent material, and said bowl housing comprising at least two portions which are relatively movable between two positions, in one of which they enclose and support said container and in the other of which said container is removable from said housing, the division between said two relatively removable portions approximating a plane deiined by the axes of the usually vertically extending portion of the bowl housing and of the usually horizontally extending stem housing portion and a plane approximately perpendicular to the axis of the stem housing portion and remote from the ends thereof.

2. A tobacco smoking pipe comprising a stem, a bowl and stem housing portion, and a container separable from and mounted in said housing to receive and hold the tobacco while it is being smoked, said container being formed of non-charting, non-absorbent material, and said bowl housing comprising at least two portions which are relatively movable between two positions, in one of which they enclose and support said container and in the other of which said container is removable from said housing, the division between said two relatively movable portions approximating a plane defined by the axes of the usually vertically extending portion of the bowl housing and of the usually horizontally extending stem housing portion and a plane approximately perpendicular to the axis of the stem housing portion and remote from the ends thereof, said two parts of the bowl housing being hingedly joined to each other along their bottom edges by a hinge joint which comprises a rounded rib on one of said two parts, the other part having a corresponding groove therein to receive said rib for relative pivotal movement of said parts about the axis of said rib and a pair of spring strips, each having its ends bent inwardly toward each other and each having one end engaging an outwardly facing vertical wall on one of said parts and the other end engaging a corresponding wall on the other of said parts and each being positioned so that in one of the said two positions to which the said bowl housing parts are movable a line connecting its opposed endmost portion extends above the axis of said rib and in the other of said two positions extends below the axis of said rib.

3. A pipe as dened in claim 1 in which the two parts of the bowl housing are hingedly joined to each other along their bottom edges.

4. A pipe as dened in claim 3 which comprises a locking cap engaging and locking the two parts of said bowl housing in said container enclosing and supporting position and having an enlarged circular opening therethrough registering with a tobacco receiving opening in the top of said container.

References Cited by the Examiner UNITED STATES PATENTS 47,199 4/1865 Frances et al 131-196 X 115,363 5/1871 Ruge 131-222 X 185,284 12/1876 Bourke 131-196 X 642,963 2/1900 Datow 131-195 719,683 2/ 1903 Moehlenbrock.

1,756,695 4/1930 Lucas 131-220 X 2,094,708 10/ 1935 Karlson 131-195 2,251,545 8/ 1941 Munzer 131-220 X 2,792,840 5/ 1957 Herriott 131-230 X FOREIGN PATENTS 9,179 3/ 1880 Germany. 566,810 12/1932 Germany.

6,236 1889 Great Britain. 24,253 1904 Great Britain.

SAMUEL KOREN, Primary Examiner. JOSEPH S. REICH, Examiner.

Claims

1. A TOBACCO SMOKING PIPE COMPRISING A STEM, A BOWL AND STEM HOUSING PORTION, AND A CONTAINER SEPARABLE FROM AND MOUNTED IN SAID HOUSING TO RECEIVE AND HOLD THE TOBACCO WHILE IT IS BEING SMOKED, SAID CONTAINER BEING FORMED OF NON-CHARRING, NON-ABSORBENT MATERIAL, AND SAID BOWL HOUSING COMPRISING AT LEAST TWO PORTIONS WHICH ARE RELATIVELY MOVABLE BETWEEN TWO POSITIONS, IN ONE OF WHICH THEY ENCLOSE AND SUPPORT SAID CONTAINER AND IN THE OTHER OF WHICH SAID CONTAINER IS REMOVABLE FROM SAID