CA2031967A1 - Tobacco pipe - Google Patents
Tobacco pipeInfo
- Publication number
- CA2031967A1 CA2031967A1 CA002031967A CA2031967A CA2031967A1 CA 2031967 A1 CA2031967 A1 CA 2031967A1 CA 002031967 A CA002031967 A CA 002031967A CA 2031967 A CA2031967 A CA 2031967A CA 2031967 A1 CA2031967 A1 CA 2031967A1
- Authority
- CA
- Canada
- Prior art keywords
- tobacco pipe
- accordance
- bowl
- liner
- stem tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F1/00—Tobacco pipes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F1/00—Tobacco pipes
- A24F1/32—Selection of materials for pipes
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention relates to a tobacco pipe. The tobacco pipe is comprised of a bowl which envelopes a combustion cavity and an adjoining tubular stem. The stem is fitted at its other end to a mouthpiece. The cross section of the smoke-stream is constricted at a point that is located at the transition point between the combustion cavity and the tubular stem. A heat conducting liner extends through the constriction point into the tubular stem. The liner also substantially surrounds the entire combustion cavity.
The present invention relates to a tobacco pipe. The tobacco pipe is comprised of a bowl which envelopes a combustion cavity and an adjoining tubular stem. The stem is fitted at its other end to a mouthpiece. The cross section of the smoke-stream is constricted at a point that is located at the transition point between the combustion cavity and the tubular stem. A heat conducting liner extends through the constriction point into the tubular stem. The liner also substantially surrounds the entire combustion cavity.
Description
2~3~ 7 Tobacco Pi~e The present invention relates to a tobacco pipe comprising a bowl that envelopes the combustion cavity, connected to such bowl being a tubular stem that is fitted on its other end with a mouthpiece, whereby the cross section of the smokestream constricts at a point situated between the col~ustion chamber and the tubular stem. The heat-conducting liner of the subject pipe furthermore extends through the constriction point into the stem tube.
A tobacco pipe of the kind described above has already been disclosed in US-PS 2 652 062. The heat-conducting liner of this prior art pipe assumes the form of a metal dish in the part of the bowl that lies below the actual combustion cavity. According to the concept underlying US-PS 2 652 062, the metal dish should be able to absorb heat from the smokestream as it crosses the constriction point and retain such heat on the floor of the pipe bowl. It was anticipated that the quantity of heat absorbed by the liner would be sufficient to cause the liquid flowing through the pipe stem to vaporize upon contact with the heated metal dish. For this reason, the metal dish is also referred to in the prior art patent as a vaporizer.
The design of the prior art tobacco pipe, however, permits heavy condensation to occur in the tube of the stem because the smokestream accelerates in the region of the constriction point and because the surrounding the pipe bowl and the attached stem remain relatively cool. These factors c~use the exiting smoke to cool down and lose the capacity to carry moisture. This is critical at the start of the smoking process, when the burning part of the tobacco is well separated from the cooler zone. It was anticipated that the heat-conducting liner, which, in the bottom of the pipe bowl, takes the shape of a metal dish and extends through the constriction into the stem tube, would be able to transfer heat to this lower zone; experience has shown however, that the liner heats up only very slightly and is thus 2 ~03~
not capable of producing the expected results. The reason for the low temperature of the liner is that it has not been found possible to draw off sufficient quantities of heat from the passing smoke, since pipe smoke is fundamentally incapable of absorbing or conducting more than insignificant quantities of heat energy.
Removed from the smoke with the condensation are a great number of aromatic substances that normally contribute to smoking enjoyment. In addition, the burning portion of the tobacco in the bowl will have a tendency to go out. The pipe bowl, which is normally produced of wood, clay, Meerschaum or other suitable materials, heats up only very slowly in the course of a smoking cycle. It is no coincidence, therefore, that the pipe bowl is normally manufactured from materials having a low heat conductance. Otherwise, it would be impossible to hold the pipe by its bowl due to the high temperature of the latter. In addition, the significant heat loss would hamper the burning of the tobacco.
It has been discovered that a pipe of the type first mentioned can be smoked with greater enjoyment if the aforementioned deficiencies are removed by the novel arrangement of the heat-conducting liner substantially around the entire combustion cavity. Such arrangement permits the heat, which is produced in the burning zone (or, more precisely, an excess amount thereof) to be conducted directly from such burning zone via the heat-conducting liner through the constriction point and into the starting zone of the stem tube. Thus the temperature is caused to rise in the latter zone of the pipe, which reduces the development of condensation and thus also the removal from the smokestream of essential aromatic substances. The present invention makes use of the principle that a heat-conducting liner 3 203~967 will be capable of absorbing and transferring many times the amount of heat that can conventionally be absorbed and transferred via smoke.
The novel arrangement also reduces the likelihood of localized overheating of the pipe bowl material in the region of the burning tobacco, which permits the pipe bowl to be manufactured from inexpensive materials possessing low thermal conductance. The ability to use inexpensive materials in manufacture permits the extension of the insight behind the invention to a design comprising the production of bowl and stem from a single piece of conically rolled paper into which notches are pressed in order to form the constriction point at which the bowl is bent to form an angle with the stem. The rolled paper tubes, which are fitted at their tapered end with a mouthpiece, are conventionally used as cigar holders.
Such disposable cigar holders can be further processed in the manner described in order to produce an inexpensive pipe which can, for example, be filled with ready-to-use tobacco plugs, and be thrown away after being used a couple of times.
Tests have demonstrated that if the pipe bowl is coated up to the stem tube with stanniol, the surrounding paper layer can be prevented from burning or being singed. The novel arrangement permits the tobacco to burn evenly, and prevents both the burning portion of the tobacco from being extinguished and the condensing out of significant quantities of condensate, attended by the loss of essential aromatic substances.
Another embodiment of the present invention provides that the stem tube is wider than the constriction point upstream of the latter so as to be able to accomodate a substantially spherical body comprising heat-accumulating material that comes into discontinuous contact with the liner. The spherical body 203~967 draws heat from the liner, and, after the temperature of the pipe has climbed sufficiently, from the smokestream itself. The arrangement of the spherical body inside the stem tube also reduces temperature fluctuations in the region of pipe bowl and stem tube throughout a smoking cycle.
The spherical body, which is inserted preferably loosely into the stem tube, will, if the surface of such spherical body is enlarged by means of an open pore structure, which could be provided by a material such as porous clay, be able to absorb condensate present in the tube. The employment in the stem tube of a substantially spherical porous clay body fits well within the design for an inexpensive, disposable pipe.
one embodiment example of the present invention is illustrated in the following figures. Shown are:
Fig. 1 - a partial section of the "blank" for the proposed tobacco pipe;
Fig. 2 - a longitudinal section of the finished proposed tobacco pipe;
Fig. 3 - a lateral view of the tobacco pipe shown in Fig. 2;
and Fig. 4 - a longitudinal section through an improved configuration of the proposed mouthpiece.
.
Fig. 1 illustrates a conventional cigar holder that has been used as the "blank" for the proposed tobacco pipe. If an angular cut is made in the rolled body 1, which is generally referenced by 1, near its wider, open end, section 2, which is indicated by a broXen line, falls away. It can also be seen from Fig. 1 that oppositely-lying notches 3 have been made in rolled body 1. It would also be quite simple for rolled body 1 to be produced from a blank not possessing section 2 and, if necessary, having notches 3 already in place.
2~3~
Arranged on the inside of rolled body 1 is a liner 4 comprising a thin sheet of aluminum which, for the sake of clarity, has been drawn relatively thickly. Liner 4 extends from forward orifice 5 between notches 3 and thus through constriction point 3a into the section of rolled body 1 that connects to mouthpiece 6. This section will later form stem tube 7, while the section of rolled body 1 lying between opening 5 and notches 3 will become bowl 8.
Before the proposed pipe assumes the shape shown in Figures 2 and 3 by the bending of bowl 8 relative to stem tube 7, a substantially spherical body 9 comprising porous clay is inserted into the section of stem tube 7 that has already been fitted with liner 4. When bowl 8 is bent in the region of notches 3 and set at an angle relative to stem tube 7, constriction point 3a further constricts, as Fig. 2 shows, rendering spherical body 9, which is normally capable of limited motion due to its rather loose confinement, incapable of escaping this section of the pipe stem tube in either direction.
If the cavity of bowl 8, which constitutes the combustion cavity 10 of the proposed pipe, is filled with tobacco, which may for instance be in the form of a plug 11 (as disclosed in DE-PSen 602 151 and 873 915 as well as CA-PS 771 426) and the tobacco lit, a quantity of the heat generated will be conducted via liner 4 through constriction point 3a and into the adjoining section of stem tube 7. This transfer of heat serves, firstly, to maintain, in the region of the burning tobacco situated inside combustion cavity 10, a temperature in the paper-comprising rolled body 2 at which the latter is unable to undergo either immediate singing or even burn. Secondly, the temperature in the region of the constriction point 3a as well as in the adjoining section of stem tube 7 is raised to a point at which the development of , .
condensate is at the very least substantially reduced, which prevents essential aromatic components from leaving the smokestream that is moving through mouthpiece 6 into the smoker's mouth. During this process, body 9 heats up primarily due to its contact with heat-conducting liner 4. Such an arrangement serves to maintain a uniform temperature in this zone inside the tobacco pipe.
Figure 4 is an enlarged view of mouthpiece 6 comprising an opening 12, which the smoker is able to close or leave open by using his lips. In the latter case, as is indicated by means of arrow 13, air is able to penetrate into smoke channel 14 of mouthpiece 6 and thin out and cool down the smoke flowing through smoke channel 14.
A tobacco pipe of the kind described above has already been disclosed in US-PS 2 652 062. The heat-conducting liner of this prior art pipe assumes the form of a metal dish in the part of the bowl that lies below the actual combustion cavity. According to the concept underlying US-PS 2 652 062, the metal dish should be able to absorb heat from the smokestream as it crosses the constriction point and retain such heat on the floor of the pipe bowl. It was anticipated that the quantity of heat absorbed by the liner would be sufficient to cause the liquid flowing through the pipe stem to vaporize upon contact with the heated metal dish. For this reason, the metal dish is also referred to in the prior art patent as a vaporizer.
The design of the prior art tobacco pipe, however, permits heavy condensation to occur in the tube of the stem because the smokestream accelerates in the region of the constriction point and because the surrounding the pipe bowl and the attached stem remain relatively cool. These factors c~use the exiting smoke to cool down and lose the capacity to carry moisture. This is critical at the start of the smoking process, when the burning part of the tobacco is well separated from the cooler zone. It was anticipated that the heat-conducting liner, which, in the bottom of the pipe bowl, takes the shape of a metal dish and extends through the constriction into the stem tube, would be able to transfer heat to this lower zone; experience has shown however, that the liner heats up only very slightly and is thus 2 ~03~
not capable of producing the expected results. The reason for the low temperature of the liner is that it has not been found possible to draw off sufficient quantities of heat from the passing smoke, since pipe smoke is fundamentally incapable of absorbing or conducting more than insignificant quantities of heat energy.
Removed from the smoke with the condensation are a great number of aromatic substances that normally contribute to smoking enjoyment. In addition, the burning portion of the tobacco in the bowl will have a tendency to go out. The pipe bowl, which is normally produced of wood, clay, Meerschaum or other suitable materials, heats up only very slowly in the course of a smoking cycle. It is no coincidence, therefore, that the pipe bowl is normally manufactured from materials having a low heat conductance. Otherwise, it would be impossible to hold the pipe by its bowl due to the high temperature of the latter. In addition, the significant heat loss would hamper the burning of the tobacco.
It has been discovered that a pipe of the type first mentioned can be smoked with greater enjoyment if the aforementioned deficiencies are removed by the novel arrangement of the heat-conducting liner substantially around the entire combustion cavity. Such arrangement permits the heat, which is produced in the burning zone (or, more precisely, an excess amount thereof) to be conducted directly from such burning zone via the heat-conducting liner through the constriction point and into the starting zone of the stem tube. Thus the temperature is caused to rise in the latter zone of the pipe, which reduces the development of condensation and thus also the removal from the smokestream of essential aromatic substances. The present invention makes use of the principle that a heat-conducting liner 3 203~967 will be capable of absorbing and transferring many times the amount of heat that can conventionally be absorbed and transferred via smoke.
The novel arrangement also reduces the likelihood of localized overheating of the pipe bowl material in the region of the burning tobacco, which permits the pipe bowl to be manufactured from inexpensive materials possessing low thermal conductance. The ability to use inexpensive materials in manufacture permits the extension of the insight behind the invention to a design comprising the production of bowl and stem from a single piece of conically rolled paper into which notches are pressed in order to form the constriction point at which the bowl is bent to form an angle with the stem. The rolled paper tubes, which are fitted at their tapered end with a mouthpiece, are conventionally used as cigar holders.
Such disposable cigar holders can be further processed in the manner described in order to produce an inexpensive pipe which can, for example, be filled with ready-to-use tobacco plugs, and be thrown away after being used a couple of times.
Tests have demonstrated that if the pipe bowl is coated up to the stem tube with stanniol, the surrounding paper layer can be prevented from burning or being singed. The novel arrangement permits the tobacco to burn evenly, and prevents both the burning portion of the tobacco from being extinguished and the condensing out of significant quantities of condensate, attended by the loss of essential aromatic substances.
Another embodiment of the present invention provides that the stem tube is wider than the constriction point upstream of the latter so as to be able to accomodate a substantially spherical body comprising heat-accumulating material that comes into discontinuous contact with the liner. The spherical body 203~967 draws heat from the liner, and, after the temperature of the pipe has climbed sufficiently, from the smokestream itself. The arrangement of the spherical body inside the stem tube also reduces temperature fluctuations in the region of pipe bowl and stem tube throughout a smoking cycle.
The spherical body, which is inserted preferably loosely into the stem tube, will, if the surface of such spherical body is enlarged by means of an open pore structure, which could be provided by a material such as porous clay, be able to absorb condensate present in the tube. The employment in the stem tube of a substantially spherical porous clay body fits well within the design for an inexpensive, disposable pipe.
one embodiment example of the present invention is illustrated in the following figures. Shown are:
Fig. 1 - a partial section of the "blank" for the proposed tobacco pipe;
Fig. 2 - a longitudinal section of the finished proposed tobacco pipe;
Fig. 3 - a lateral view of the tobacco pipe shown in Fig. 2;
and Fig. 4 - a longitudinal section through an improved configuration of the proposed mouthpiece.
.
Fig. 1 illustrates a conventional cigar holder that has been used as the "blank" for the proposed tobacco pipe. If an angular cut is made in the rolled body 1, which is generally referenced by 1, near its wider, open end, section 2, which is indicated by a broXen line, falls away. It can also be seen from Fig. 1 that oppositely-lying notches 3 have been made in rolled body 1. It would also be quite simple for rolled body 1 to be produced from a blank not possessing section 2 and, if necessary, having notches 3 already in place.
2~3~
Arranged on the inside of rolled body 1 is a liner 4 comprising a thin sheet of aluminum which, for the sake of clarity, has been drawn relatively thickly. Liner 4 extends from forward orifice 5 between notches 3 and thus through constriction point 3a into the section of rolled body 1 that connects to mouthpiece 6. This section will later form stem tube 7, while the section of rolled body 1 lying between opening 5 and notches 3 will become bowl 8.
Before the proposed pipe assumes the shape shown in Figures 2 and 3 by the bending of bowl 8 relative to stem tube 7, a substantially spherical body 9 comprising porous clay is inserted into the section of stem tube 7 that has already been fitted with liner 4. When bowl 8 is bent in the region of notches 3 and set at an angle relative to stem tube 7, constriction point 3a further constricts, as Fig. 2 shows, rendering spherical body 9, which is normally capable of limited motion due to its rather loose confinement, incapable of escaping this section of the pipe stem tube in either direction.
If the cavity of bowl 8, which constitutes the combustion cavity 10 of the proposed pipe, is filled with tobacco, which may for instance be in the form of a plug 11 (as disclosed in DE-PSen 602 151 and 873 915 as well as CA-PS 771 426) and the tobacco lit, a quantity of the heat generated will be conducted via liner 4 through constriction point 3a and into the adjoining section of stem tube 7. This transfer of heat serves, firstly, to maintain, in the region of the burning tobacco situated inside combustion cavity 10, a temperature in the paper-comprising rolled body 2 at which the latter is unable to undergo either immediate singing or even burn. Secondly, the temperature in the region of the constriction point 3a as well as in the adjoining section of stem tube 7 is raised to a point at which the development of , .
condensate is at the very least substantially reduced, which prevents essential aromatic components from leaving the smokestream that is moving through mouthpiece 6 into the smoker's mouth. During this process, body 9 heats up primarily due to its contact with heat-conducting liner 4. Such an arrangement serves to maintain a uniform temperature in this zone inside the tobacco pipe.
Figure 4 is an enlarged view of mouthpiece 6 comprising an opening 12, which the smoker is able to close or leave open by using his lips. In the latter case, as is indicated by means of arrow 13, air is able to penetrate into smoke channel 14 of mouthpiece 6 and thin out and cool down the smoke flowing through smoke channel 14.
Claims (9)
1. Tobacco pipe comprising a bowl (8) enveloping a combustion cavity (10) as well as an adjoining tubular stem (7) that is fitted at its other end with a mouthpiece (6), whereby the cross section of the smokestream constricts at a point (3a) that is located at the transition point that is situated between combustion cavity (10) and stem tube (7) and whereby a heat-conducting liner (4) extends through constriction point (3) into stem tube (7), whereby liner (4) also substantially surrounds the entire combustion cavity (10).
2. Tobacco pipe in accordance with Claim 1, whereby liner (4) comprises a metallic layer, more particularly aluminum foil.
3. Tobacco pipe in accordance with Claim 1 or 2, whereby stem tube (7) is widened upstream of constriction point (3a) relative to said constriction point and accomodates a substantially spherical body (9) that both comprises heat-accumulating material and maintains discontinuous contact with liner (4).
4. Tobacco pipe in accordance with Claim 3, whereby body (9) is inserted loosely into tube (7).
5. Tobacco pipe in accordance with Claim 3 or 4, whereby body (9) comprises a surface that has been enlarged due to an open pore structure.
6. Tobacco pipe in accordance with Claim 5, whereby body (9) comprises porous clay.
7. Tobacco pipe in accordance with one of the preceding claims, whereby bowl (8) and stem tube (7) are formed in one piece from thin-walled material.
8. Tobacco pipe in accordance with Claim 7, whereby a conical rolled body (1) comprising paper forms both bowl (8) and stem tube (7), whereby constriction point (3a) is formed by the pressing of notches into said rolled body and comprises the point at which said bowl is angled relative to said stem tube.
9. Tobacco pipe in accordance with one of the preceding claims, whereby provided in mouthpiece (6) for the purpose of admitting outside air is an opening (12) that can be closed off by the lips of the smoker and that leads to smoke channel (14), which constitutes an extension of stem tube (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG8914641.7 | 1989-12-13 | ||
| DE8914641U DE8914641U1 (en) | 1989-12-13 | 1989-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2031967A1 true CA2031967A1 (en) | 1991-06-14 |
Family
ID=6845412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002031967A Abandoned CA2031967A1 (en) | 1989-12-13 | 1990-12-11 | Tobacco pipe |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0432710B1 (en) |
| AT (1) | ATE114416T1 (en) |
| CA (1) | CA2031967A1 (en) |
| DE (2) | DE8914641U1 (en) |
| DK (1) | DK0432710T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT17217U1 (en) * | 2020-03-03 | 2021-09-15 | Zettl Robert | Pipe, especially herbal pipe or tobacco pipe |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3624E (en) * | 1903-11-17 | 1904-12-30 | Pierre Valette | Advanced pipe system |
| GB310624A (en) * | 1928-03-22 | 1929-05-02 | Albert James Cole | Improvements in or relating to smokers' pipes |
| DE673704C (en) * | 1936-09-10 | 1939-03-27 | Wilhelm Haar | Tobacco pipe with a metal pipe lining the smoke channel and connected to the pipe head bore through a slot |
| US2223302A (en) * | 1939-09-28 | 1940-11-26 | Edward A Germain | Cool smoke pipe |
| FR1034663A (en) * | 1949-12-06 | 1958-07-29 | Elie P Aghnides | |
| US2652062A (en) * | 1950-02-23 | 1953-09-15 | Atwood M Timpe | Tobacco smoking pipe |
| DE835359C (en) * | 1951-04-11 | 1952-03-31 | Carl Mittag | Process for improving and continuously maintaining the draft of the tobacco pipe |
| DE925688C (en) * | 1951-12-25 | 1955-03-28 | Arnold Kunze | Tobacco pipe |
| DE1751012U (en) * | 1957-02-27 | 1957-08-22 | Wilhelm Michels | CIGARS AND CIGARETTE HOLDER. |
| DE1779234U (en) * | 1958-10-16 | 1958-12-11 | Muellenbach & Thewald K G | PIPE WITH FILTER INSERT. |
| US3669127A (en) * | 1970-06-04 | 1972-06-13 | Kermeth L Owens | Filtered tobacco pipe |
| GB1458683A (en) * | 1974-09-17 | 1976-12-15 | Hornsby J | Improvements in or relating to smokers' pipes |
| US4058130A (en) * | 1976-01-08 | 1977-11-15 | Curtiss George C | Pipe-cigaret |
| NL7803694A (en) * | 1978-04-06 | 1979-10-09 | Claessens Prod Consult | PROCEDURE FOR MANUFACTURING A TOBACCO CONSUMPTION DEVICE AND DEVICE FOR TOBACCO CONSUMPTION. |
-
1989
- 1989-12-13 DE DE8914641U patent/DE8914641U1/de not_active Expired - Lifetime
-
1990
- 1990-12-11 DK DK90123753.7T patent/DK0432710T3/en active
- 1990-12-11 AT AT90123753T patent/ATE114416T1/en not_active IP Right Cessation
- 1990-12-11 EP EP90123753A patent/EP0432710B1/en not_active Expired - Lifetime
- 1990-12-11 DE DE59007851T patent/DE59007851D1/en not_active Expired - Fee Related
- 1990-12-11 CA CA002031967A patent/CA2031967A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE59007851D1 (en) | 1995-01-12 |
| DE8914641U1 (en) | 1991-04-11 |
| EP0432710A1 (en) | 1991-06-19 |
| DK0432710T3 (en) | 1995-01-23 |
| EP0432710B1 (en) | 1994-11-30 |
| ATE114416T1 (en) | 1994-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |