CA1333697C - Valve protector - Google Patents
Valve protectorInfo
- Publication number
- CA1333697C CA1333697C CA000600823A CA600823A CA1333697C CA 1333697 C CA1333697 C CA 1333697C CA 000600823 A CA000600823 A CA 000600823A CA 600823 A CA600823 A CA 600823A CA 1333697 C CA1333697 C CA 1333697C
- Authority
- CA
- Canada
- Prior art keywords
- valve
- valve protector
- gas cylinder
- protector
- side walls
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0119—Shape cylindrical with flat end-piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0636—Metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0308—Protective caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
- F17C2209/227—Assembling processes by adhesive means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/013—Carbon dioxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A one-piece integrally-formed valve protector for a gas discharge valve of a pressurized gas cylinder is permanently mounted to the cylinder. The valve protector includes side walls which upwardly and outwardly flare from a mounting neck ring having inner threads and a domed top wall extending between and joining the side walls and dimensioned to enclose the valve. The side walls and top wall define front and rear openings to permit access to the valve therethrough.
Description
VALVE PROTECTOR
The present invention relates to a valve protector for pressurized gas cylinders.
Metal-walled cylinders are widely used for containing gas under pressure and such cylinders are commonly provided at one end with a neck on which is mounted a valve to effect controlled release of the contained gas. Cylinders of this type are used to hold a variety of gases, including industrial and welding gases, as well as gaseous carbon dioxide for the carbonation of beverages.
Because of their smooth, elongated shape and considerable weight of approximately 140 lbs., such cylinders are inconvenient to handle. Moreover, the ~Y~Os^~ projecting valve on such cylinders is vulnerable to misadjustment or damage, either by impact with objects or hard surfaces incident to the handling of the cylinder, or by a blow from moving objects when the cylinder is stationary. In addition, the valve may become sheared off when the cylinder tips over.
A variety of proposals have been made heretofore for protector devices for the valves, employing some form of shield for the valve. A search was conducted in the facilities of the United States Patent and Trademark Office with respect to the present invention and the following U.S. patents have been located as the closest prior art:
938,793 4,332,331 3,006,360 4,664,286 3,035,605 U.S. Patent No. 938,793 discloses a removable cap for the gas cylinder which encloses a recessed valve.
U.S. Patent No. 3,006,360 discloses a cylindrical open-ended cap stand which is intended also to remain permanently in place in use.
U.S. Patent No. 3,035,605 discloses a valve protector cap having an integral valve release mechAnism and is of complicated structure. U.S. Patent No.
4,332,331 discloses a rotatable valve protector of generally open-ended frustoconical structure. U.S.
Patent No. 4,664,286 discloses a protector device which is in the form of a clamp collar having a protective strap which su~ou..ds the gas cylinder valve.
In accordance with the present invention, there is provided a novel valve protector which is designed to be permanently positioned on the cylinder, to be simple in design and yet to be effective in protecting the valve from damage. In addition, the cap is designed to be readily rolled and to accommodate larger valves while providing more access to the valve.
Accordingly, in one aspect of the present invention, there is provided in combination, a gas cylinder made of steel and having a gas cylinder valve and a continuous neck ring have an outer screw thread, a one-piece valve protector for the gas cylinder valve having continuous a neck ring screw-thre~Aly mounting the valve protector to the gas cylinder, and metal adhesive located between the outer and inner threads permanently adhering the screw threads together to resist unscrewing of the valve protector from the gas cylinder, the one-piece valve protector having side walls upwardly and outwardly flared from the valve protector neck ring and a domed top wall exten~ing between and integrally joining the side walls to cover the gas cylinder valve and to define front and rear openings to the valve protector permitting access to the gas cylinder valve therethrough.
The present invention also provides a method of assembling a one-piece valve protector with a gas cylinder made of steel and having a gas cylinder valve and a continuous neck ring having an outer screw thread, the one-piece valve protector having a continuous neck ring having an inner screw thread for screw thre~e~ly mounting the valve protector to the gas cylinder, the one-piece valve protector having side walls upwardly and outwardly flared from the valve protector neck ring and a domed top wall exten~ing between and integrally joining the side walls to define front and rear op~nings to the valve protector, the method comprising applying a metal adhesive to the outer screw thread of the continuous neck ring of the gas cylinder, thread-edly mounting the valve protector to the gas cylinder by threadedly engaging the inner screw thread of the continuous neck ring of the valve protector and the outer screw thread of the continuous neck ring of the gas cylinder; positioning the valve protector when threadedly mounted to the valve protector to permit access to the gas cylinder valve through both the front and rear openings in the valve protector, and permitting the adhesive to adhere the screw threadedly-engaged inner and outer threads to permanently affix the valve protector to the gas cylinder.
The invention is described further, by way of illustration, with reference to the accompanying drawings, wherein:
Figure 1 is a perspective view of a gas cylinder provided with a protective cap in accordance with one embodiment of the invention;
Figure 2 is a close-up view of the valve protector being assembled with the cylinders;
Figure 3 is a close-up perspective view of the valve protector of Figure l;
Figure 4 is a sectional view taken on section line 4-4 of Figure 3;
Figure 5 is a sectional view taken on section line 5-5 of Figure 3; and Figure 6 is a sectional view taken on section line 6-6 of Figure 3.
Referring to the drawings, a pressurized steel gas cylinder 10 of conventional construction is provided with a valve 12 to permit gas to be disre~c~ from the cylinder 10 in the desired quantity and at the desired flow rate and an integrally-formed one-piece valve protector 14 permanently mounted to the cylinder 10.
The valve protector 14 may be constructed of any convenient material, for example, iron, aluminum or plastics.
The cylinder 10 is provided with a neck ring 16 ad;acent the valve 12 having outer threads to enable the valve protector 14 to be screw-threadedly mounted on the cylinder 10 via complimentary inner threads on a mounting neck ring 18 of the valve protector 14. When the valve protector 14 has been threadedly mounted on lS the cylinder 10, it is intended to remain permanently in position and to prevent accidental unscrewing of the valve protector, metal adhesive is positioned in the screw threads prior to screwing on the valve protector 14.
20The valve protector 14 has a pair of side walls 20 and 22 upwardly and outwardly flared from the mounting ring 18 and joined by a domed top wall 24. The side walls 20 and 22 and the top wall 24 are dimensioned to enclose the valve 12 and thereby function effectively as a valve protector. In addition, the side walls 20 and 22 and the top wall 24 define front and rear openings 26 and 28, so that access may be had to the valve 12 when the valve protector 14 is mounted to the cylinder, so that the valve 12 may be operated to dispense the contents of the cylinder 10 through the front opening 26.
The domed top wall 24 is provided with an integral cylindrical protrusion 30 on its outer surface located coaxially with the mounting ring 18 to assist in rolling the cylinder 10.
The side walls 20 and 22 as well as being upwardly and outwardly flared have side edges 32 and 34 which diverge upwardly from the mounting ring to the integral join with the domed top wall 24, as seen in Figure 5.
Similarly, the top wall is provided with side edges 36, 38 which converge from the location of the integral joins with the side walls 20 and 22 to a minimum distance therebetween adjacent the cylindrical projection 30, again as seen in Figure 5.
In addition, the side walls 20 and 22, in considering their shape from the rear 28 to the front opening 26, first is curved or bowed outwardly from the rear opening 28 to approximately the mid-point of the length thereof, i.e. to the central axis of the valve protector 14, and then proceeds planarly to the front opening 26, so that respective cross-sections of the side walls 20 and 22 in this area are parallel. This arrangement is seen best in Figure 3 and in the sectional view of Figure 6. Integral side ribs may be provided for increased strength.
The domed top wall is similarly shaped and, from the rear opening 28, is curved outwardly to the approximately mid-point of the length thereof and then procee~C planarly to the front opening 26. This arrangement is best seen in Figures 3 and 5.
The shaping of the side walls 20, 22 and the top wall 24 in this way provides a much wider front opening 26 than rear opening 28. In this way, ready and more access to the valve 12 can be had, a large inner space is provided to permit larger valves to be accommodated and to permit the contents of the cylinder 10 to be readily and effectively discharged through the valve 12 without the permanently-positioned valve protector interfering in any way with the discharge.
The domed top wall 24 is provided on its outer surface adjacent its integral join to the upper ends of the side walls 20, 22 with an elongate recess 40, 42 which extends from adjacent the front side edge 36 to the rear side edge 38. These recesses ease in the handling of the cylinder.
The valve protector permanently protects the valve against accidental damage during movement therefrom or by flying objects but yet permits material to be rged from the cylinder 10.
In summary of this disclosure, the present invention provides a novel valve protector structure for valved pressurized gas cylinders which is intended to be permanently positioned and yet not to interfere with ready and efficient discharge of gas from the cylinder.
Modifications are possible within the scope of this invention.
The present invention relates to a valve protector for pressurized gas cylinders.
Metal-walled cylinders are widely used for containing gas under pressure and such cylinders are commonly provided at one end with a neck on which is mounted a valve to effect controlled release of the contained gas. Cylinders of this type are used to hold a variety of gases, including industrial and welding gases, as well as gaseous carbon dioxide for the carbonation of beverages.
Because of their smooth, elongated shape and considerable weight of approximately 140 lbs., such cylinders are inconvenient to handle. Moreover, the ~Y~Os^~ projecting valve on such cylinders is vulnerable to misadjustment or damage, either by impact with objects or hard surfaces incident to the handling of the cylinder, or by a blow from moving objects when the cylinder is stationary. In addition, the valve may become sheared off when the cylinder tips over.
A variety of proposals have been made heretofore for protector devices for the valves, employing some form of shield for the valve. A search was conducted in the facilities of the United States Patent and Trademark Office with respect to the present invention and the following U.S. patents have been located as the closest prior art:
938,793 4,332,331 3,006,360 4,664,286 3,035,605 U.S. Patent No. 938,793 discloses a removable cap for the gas cylinder which encloses a recessed valve.
U.S. Patent No. 3,006,360 discloses a cylindrical open-ended cap stand which is intended also to remain permanently in place in use.
U.S. Patent No. 3,035,605 discloses a valve protector cap having an integral valve release mechAnism and is of complicated structure. U.S. Patent No.
4,332,331 discloses a rotatable valve protector of generally open-ended frustoconical structure. U.S.
Patent No. 4,664,286 discloses a protector device which is in the form of a clamp collar having a protective strap which su~ou..ds the gas cylinder valve.
In accordance with the present invention, there is provided a novel valve protector which is designed to be permanently positioned on the cylinder, to be simple in design and yet to be effective in protecting the valve from damage. In addition, the cap is designed to be readily rolled and to accommodate larger valves while providing more access to the valve.
Accordingly, in one aspect of the present invention, there is provided in combination, a gas cylinder made of steel and having a gas cylinder valve and a continuous neck ring have an outer screw thread, a one-piece valve protector for the gas cylinder valve having continuous a neck ring screw-thre~Aly mounting the valve protector to the gas cylinder, and metal adhesive located between the outer and inner threads permanently adhering the screw threads together to resist unscrewing of the valve protector from the gas cylinder, the one-piece valve protector having side walls upwardly and outwardly flared from the valve protector neck ring and a domed top wall exten~ing between and integrally joining the side walls to cover the gas cylinder valve and to define front and rear openings to the valve protector permitting access to the gas cylinder valve therethrough.
The present invention also provides a method of assembling a one-piece valve protector with a gas cylinder made of steel and having a gas cylinder valve and a continuous neck ring having an outer screw thread, the one-piece valve protector having a continuous neck ring having an inner screw thread for screw thre~e~ly mounting the valve protector to the gas cylinder, the one-piece valve protector having side walls upwardly and outwardly flared from the valve protector neck ring and a domed top wall exten~ing between and integrally joining the side walls to define front and rear op~nings to the valve protector, the method comprising applying a metal adhesive to the outer screw thread of the continuous neck ring of the gas cylinder, thread-edly mounting the valve protector to the gas cylinder by threadedly engaging the inner screw thread of the continuous neck ring of the valve protector and the outer screw thread of the continuous neck ring of the gas cylinder; positioning the valve protector when threadedly mounted to the valve protector to permit access to the gas cylinder valve through both the front and rear openings in the valve protector, and permitting the adhesive to adhere the screw threadedly-engaged inner and outer threads to permanently affix the valve protector to the gas cylinder.
The invention is described further, by way of illustration, with reference to the accompanying drawings, wherein:
Figure 1 is a perspective view of a gas cylinder provided with a protective cap in accordance with one embodiment of the invention;
Figure 2 is a close-up view of the valve protector being assembled with the cylinders;
Figure 3 is a close-up perspective view of the valve protector of Figure l;
Figure 4 is a sectional view taken on section line 4-4 of Figure 3;
Figure 5 is a sectional view taken on section line 5-5 of Figure 3; and Figure 6 is a sectional view taken on section line 6-6 of Figure 3.
Referring to the drawings, a pressurized steel gas cylinder 10 of conventional construction is provided with a valve 12 to permit gas to be disre~c~ from the cylinder 10 in the desired quantity and at the desired flow rate and an integrally-formed one-piece valve protector 14 permanently mounted to the cylinder 10.
The valve protector 14 may be constructed of any convenient material, for example, iron, aluminum or plastics.
The cylinder 10 is provided with a neck ring 16 ad;acent the valve 12 having outer threads to enable the valve protector 14 to be screw-threadedly mounted on the cylinder 10 via complimentary inner threads on a mounting neck ring 18 of the valve protector 14. When the valve protector 14 has been threadedly mounted on lS the cylinder 10, it is intended to remain permanently in position and to prevent accidental unscrewing of the valve protector, metal adhesive is positioned in the screw threads prior to screwing on the valve protector 14.
20The valve protector 14 has a pair of side walls 20 and 22 upwardly and outwardly flared from the mounting ring 18 and joined by a domed top wall 24. The side walls 20 and 22 and the top wall 24 are dimensioned to enclose the valve 12 and thereby function effectively as a valve protector. In addition, the side walls 20 and 22 and the top wall 24 define front and rear openings 26 and 28, so that access may be had to the valve 12 when the valve protector 14 is mounted to the cylinder, so that the valve 12 may be operated to dispense the contents of the cylinder 10 through the front opening 26.
The domed top wall 24 is provided with an integral cylindrical protrusion 30 on its outer surface located coaxially with the mounting ring 18 to assist in rolling the cylinder 10.
The side walls 20 and 22 as well as being upwardly and outwardly flared have side edges 32 and 34 which diverge upwardly from the mounting ring to the integral join with the domed top wall 24, as seen in Figure 5.
Similarly, the top wall is provided with side edges 36, 38 which converge from the location of the integral joins with the side walls 20 and 22 to a minimum distance therebetween adjacent the cylindrical projection 30, again as seen in Figure 5.
In addition, the side walls 20 and 22, in considering their shape from the rear 28 to the front opening 26, first is curved or bowed outwardly from the rear opening 28 to approximately the mid-point of the length thereof, i.e. to the central axis of the valve protector 14, and then proceeds planarly to the front opening 26, so that respective cross-sections of the side walls 20 and 22 in this area are parallel. This arrangement is seen best in Figure 3 and in the sectional view of Figure 6. Integral side ribs may be provided for increased strength.
The domed top wall is similarly shaped and, from the rear opening 28, is curved outwardly to the approximately mid-point of the length thereof and then procee~C planarly to the front opening 26. This arrangement is best seen in Figures 3 and 5.
The shaping of the side walls 20, 22 and the top wall 24 in this way provides a much wider front opening 26 than rear opening 28. In this way, ready and more access to the valve 12 can be had, a large inner space is provided to permit larger valves to be accommodated and to permit the contents of the cylinder 10 to be readily and effectively discharged through the valve 12 without the permanently-positioned valve protector interfering in any way with the discharge.
The domed top wall 24 is provided on its outer surface adjacent its integral join to the upper ends of the side walls 20, 22 with an elongate recess 40, 42 which extends from adjacent the front side edge 36 to the rear side edge 38. These recesses ease in the handling of the cylinder.
The valve protector permanently protects the valve against accidental damage during movement therefrom or by flying objects but yet permits material to be rged from the cylinder 10.
In summary of this disclosure, the present invention provides a novel valve protector structure for valved pressurized gas cylinders which is intended to be permanently positioned and yet not to interfere with ready and efficient discharge of gas from the cylinder.
Modifications are possible within the scope of this invention.
Claims (9)
1. In combination, a gas cylinder made of steel and having a gas cylinder valve and a continuous neck ring having an outer screw thread, a one-piece valve protector for said gas cylinder valve having continuous a neck ring screw-threadedly mounting said valve protector to said gas cylinder, and metal adhesive located between said outer and inner threads permanently adhering said screw threads together to resist unscrewing of said valve protector from said gas cylinder, said one-piece valve protector having side walls upwardly and outwardly flared from said valve protector neck ring and a domed top wall extending between and integrally joining said side walls to cover said gas cylinder valve and to define front and rear openings to said valve protector permitting access to said gas cylinder valve therethrough.
2. The valve protector of claim 1 having an integrally-formed cylindrical protrusion on an outer surface of said domed top wall located coaxially with said mounting neck ring.
3. The valve protector of claim 2 wherein said side walls have side edges which diverge upwardly from said mounting ring to integral join with said domed top wall.
4. The valve protector of claim 3 wherein said domed top wall has side edges spaced apart the same distance as said side edges of said side walls at the upper extremity thereof and which converge to a minimum distance apart adjacent said cylindrical protrusion.
5. The valve protector of claim 4, wherein each said side walls is shaped, from said rear opening, first to bow outwardly to the approximate mid-point of the distance from the rear opening to the front opening and then proceeds planarly to said front opening.
6. The valve protector of claim 5, wherein said top wall is shaped, from said rear opening, first to bow outwardly to the approximate mid-point of the distance from the rear opening to the front opening and then proceeds planarly to said front opening.
7. The valve protector of claim 1, wherein said top wall has two elongate recesses located in an outer surface thereof and each extending from adjacent a front edge thereof to a rear edge thereof, one recess being adjacent one integral join of said top wall with said side walls and the other recess being adjacent the other integral join of said top wall with said side walls.
8. A method of assembling a one-piece valve protector with a gas cylinder made of steel and having a gas cylinder valve and a continuous neck ring having an outer screw thread, said one-piece valve protector having a continuous neck ring having an inner screw thread for screw threadedly mounting said valve protector to said gas cylinder, said one-piece valve protector having side walls upwardly and outwardly flared from said valve protector neck ring and a domed top wall extending between and integrally joining said side walls to define front and rear openings to said valve protector, said method comprising:
applying a metal adhesive to said outer screw thread of the continuous neck ring of the gas cylinder, threadedly mounting said valve protector to said gas cylinder by threadedly engaging said inner screw thread of the continuous neck ring of the valve protector and said outer screw thread of the continuous neck ring of the gas cylinder, positioning said valve protector when threadedly mounted to said gas cylinder to permit access to said
applying a metal adhesive to said outer screw thread of the continuous neck ring of the gas cylinder, threadedly mounting said valve protector to said gas cylinder by threadedly engaging said inner screw thread of the continuous neck ring of the valve protector and said outer screw thread of the continuous neck ring of the gas cylinder, positioning said valve protector when threadedly mounted to said gas cylinder to permit access to said
9 gas cylinder valve through both the front and rear openings in the valve protector, and permitting said adhesive to adhere said screw threadedly-engaged inner and outer threads to permanently affix said valve protector to said gas cylinder.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000600823A CA1333697C (en) | 1989-05-26 | 1989-05-26 | Valve protector |
| AU55878/90A AU5587890A (en) | 1989-05-26 | 1990-05-23 | Valve protector |
| KR1019900007673A KR100197544B1 (en) | 1989-05-26 | 1990-05-26 | Valve protector |
| BR909002501A BR9002501A (en) | 1989-05-26 | 1990-05-28 | VALVE PROTECTOR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000600823A CA1333697C (en) | 1989-05-26 | 1989-05-26 | Valve protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1333697C true CA1333697C (en) | 1994-12-27 |
Family
ID=4140108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000600823A Expired - Fee Related CA1333697C (en) | 1989-05-26 | 1989-05-26 | Valve protector |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR100197544B1 (en) |
| AU (1) | AU5587890A (en) |
| BR (1) | BR9002501A (en) |
| CA (1) | CA1333697C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058951A3 (en) * | 2014-10-17 | 2016-06-23 | Linde Aktiengesellschaft | Valve guard |
| RU2604978C2 (en) * | 2012-04-19 | 2016-12-20 | Л'Эр Ликид, Сосьете Аноним Пур Л'Этюд Э Л'Эксплуатасьон Де Проседе Жорж Клод | Protective cap for valve for compressed air cylinder and its production method |
| FR3092383A1 (en) * | 2019-02-06 | 2020-08-07 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Protective cap and pressurized fluid bottle assembly (s) comprising such a cap. |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU713941B3 (en) * | 1999-09-01 | 1999-12-16 | T.J. Matthews Pty Ltd | Protection assembly |
| CN105546345A (en) * | 2016-01-28 | 2016-05-04 | 浙江伟鑫金属制品有限公司 | Protective cover of oxygen cylinder |
| RU188328U1 (en) * | 2018-09-12 | 2019-04-08 | Общество с ограниченной ответственностью Фирма "Криоген" | GAS CYLINDER VALVE PROTECTIVE CAP |
-
1989
- 1989-05-26 CA CA000600823A patent/CA1333697C/en not_active Expired - Fee Related
-
1990
- 1990-05-23 AU AU55878/90A patent/AU5587890A/en not_active Abandoned
- 1990-05-26 KR KR1019900007673A patent/KR100197544B1/en not_active Expired - Fee Related
- 1990-05-28 BR BR909002501A patent/BR9002501A/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2604978C2 (en) * | 2012-04-19 | 2016-12-20 | Л'Эр Ликид, Сосьете Аноним Пур Л'Этюд Э Л'Эксплуатасьон Де Проседе Жорж Клод | Protective cap for valve for compressed air cylinder and its production method |
| RU2617646C2 (en) * | 2012-04-19 | 2017-04-25 | Л'Эр Ликид, Сосьете Аноним Пур Л'Этюд Э Л'Эксплуатасьон Де Проседе Жорж Клод | Protecting cap for balloon valve with fluid under pressure and method of its production |
| WO2016058951A3 (en) * | 2014-10-17 | 2016-06-23 | Linde Aktiengesellschaft | Valve guard |
| FR3092383A1 (en) * | 2019-02-06 | 2020-08-07 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Protective cap and pressurized fluid bottle assembly (s) comprising such a cap. |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100197544B1 (en) | 1999-06-15 |
| KR900018578A (en) | 1990-12-21 |
| BR9002501A (en) | 1991-08-13 |
| AU5587890A (en) | 1990-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |