US2932313A - All weather water hydrant - Google Patents
All weather water hydrant Download PDFInfo
- Publication number
- US2932313A US2932313A US76516458A US2932313A US 2932313 A US2932313 A US 2932313A US 76516458 A US76516458 A US 76516458A US 2932313 A US2932313 A US 2932313A
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- US
- United States
- Prior art keywords
- pipe
- tubular member
- water
- hydrant
- frost line
- 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 - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/10—Devices preventing bursting of pipes by freezing
- E03B7/12—Devices preventing bursting of pipes by freezing by preventing freezing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/5327—Hydrant type
- Y10T137/5497—Protection against freezing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/6416—With heating or cooling of the system
- Y10T137/6552—With diversion of part of fluid to heat or cool the device or its contents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85954—Closed circulating system
- Y10T137/85962—With thermal circulating means [thermo-siphons]
Definitions
- This invention relates to an all weather water hydrant and more particularly to a non-draining hydrant that is free of the danger of freezing up during the cold months of the year.
- one of the principal objects of my invention is to provide a freezeless, non-draining and sanitary means for making water from a supply line under ground available for use above the ground in all temperatures including freezing temperatures.
- the object of this invention is to provide a hydrant or like that utilizes ground temperatures for preventing the like during the colder months of the year.
- a still further object of this invention is to provide a hydrant or like for use in all climate conditionsthat wastes no water for the prevention of the freezing of the water when subjected to cold temperatures.
- a still further object of this invention is to provide a non-freezing hydrant or like that has a supply of water available immediately upon the opening of the valve.
- Still further object of my invention is to provide a nondraining, non-freezing hydrant or like that is economical in manufacture and durable in use.
- My invention consists in the construction, arrangements, and combination, of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, specifically pointed out in my claims, and illustrated in the accompanying drawings, in which:
- Fig. 1 is a perspective view of my hydrant means installed and ready for use
- Fig. 2 is a longitudinal sectional view of my device connected to water supply line and more fully illustrating its internal construction
- FIG. 3 is an enlarged cross-sectional view of my device taken on line 3-3 of Fig. 2;
- FIG. 1 shows the device for use as an ordinary hydrant.
- FIG. 1 has used the numeral 10 to designate that part of the ground that is above the normal frost line 11 of a given climate and the numeral 12 to designate that part ofthe ground that is below the frost line and therefore at a temperature less than freezing.
- the numeral 13 designates an ordinary water line supply pipe communicating with a source of water under pressure and obviously located below the frost line.
- the numeral 15 designates the elongated tubular pipe of my device.
- the numeral 16 designates a cap housing threaded onto the upper end of the pipe 15 and providing a compartment 17 directly above the upper end of the pipe 13.
- numeral 18 designates a cap threaded onto and closing e 15 as shown in Fig. 2.
- the numeral 19 designates a pipe having an outside diameter less than the inside diameter of the pipe 15. This pipe 19 is positioned and centered within the upper portion of the pipe 15 with its upper end above the upper end of the pipe 15 and terminating inside the compartment 17. The lower end portion of this pipe 19 however is bent to extend downwardly, outwardly and to the left and terminates near the center length of the pipe 15. When the device is installed the lower end of the pipe 19 which terminates inside the pipe 15 will be below the frost line and in the vicinity of the water supply pipe 13 as shown in Fig; 4.
- the numeral 20' designates a tubular elongated pipe having an outside diameter substantially less than the inside diameter of the pipe 15.
- This pipe 20 is centered within the lower portion of the pipe 15 and has its lower open end terminating inside the pipe 15 and above the lower end of the pipe 15.
- the upper end 'portion of the pipe 20 is. bent upwardly and outwardlyand to the right as shown in Fig. 4.
- This upper bent portion of the pipe 20 is adjacent to and complements the lower bent portion of the pipe 19.
- the pipe 20 has its upper end terminating inside the pipe 15 below the frost line and adjacent the water supply pipe 13.
- the water supply pipe 13 When the device is installed the water supply pipe 13 is threaded into the sideof pipe 15 and its outlet end communicates with the open upperend of the pipe 20 and also the space 21 aroun'dthe pipe 19 in the upper end portion of the pipe the device is installed to a supply pipe 13 the major portion of the length of the device will be imbedded in the ground 10 and 12.
- the depth the device isimbedded in the ground will of course depend upon climatic conditions but in general the lower end. of'the'pipe 19 and the upper end of the pipe 20 will be below the normal frost line 11.
- the extreme upper. P ItiOn of the hydrant will of course be above the ground level:22 as shown in Fig.
- the numeral 23 designates an enclosed housing embracing the upper portion of the pipe 15 and loosely embracing the cap 16.
- the inside diameter of this houisng 23 is substantially greater than that of the outside diameter of the pipe 15 in order to provide an enclosed air space 24.
- the lower end of this pipe housing 23 extends below the frost line 11.
- the numeral 25 designates an ordinary manually operated hydrant valve having its exit end communicating with the outside atmosphere and its entrance end extending through the upper portion of the housing 23 and threaded into the cap 16 for communication with the inside of the cap 16.
- My device is not only successful against freezing but is of long trouble free life.
- an elongated tubular member closed at both ends and having a lower below frost line portion and an upper above frost line portion, a supply pipe communicating with the inside upper area of the lower portion of said tubular member, a centrally located pipe in the lower portion of said tubular member having its upper open end benttoward said supply pipe and of an outside diameter substantially less than the inside diameter of said tubular member, a centrally located pipe in the upper portion of said tubular member, having its lower-end bent away from said supply'pipeand of an outside diameter substantially less than the inside of said a tubular member, and a valve controlled outlet in the I for this is that if an elongated column of enclosed still 7 upper portion of said tubular member; saidfirst men-.
- an elongated tubular member closed atboth ends and having a lower below frost line portion and an upper above frost line portion, a supply pipe communicating with the inside upper area of the lower ber of an outside diameter substantially less than the in-Q side of said tubular member, and a valve controlled outin the lower portion of said tubular member having itsupper open end bent toward said supply pipe and of an outside diameter substantially less than the inside diameter of said tubular member, a centrally located pipe in the upper, portion of said tubular member, having its lower end bentaway frornsaid supply pipe and of an outside diameter substantially less than theinside of said tubular member, and a valve controlled outletin the upper portion of said tubular member.
- an elongated tubular member closed' at'both ends and having a lower below frost line porportion of said tubular member, a pipe in the lower portion of said tubular member of an outside diameter substantially less than the inside diameter of said tubular member, a pipe in the upper portion of said tubular memlet in the upper portion of said tubular member.
- a hydrant In a hydrant, an elongated tubular member closed at both ends and having a lower below frost line portion and an upper above frostline portion, a supplypipe communicating with the inside upper area ofthe lower portion of said tubular member, a pipe in the lower pop tion of said tubular member of an outside diameter substantially less than the inside diameter of said tubular member, a pipe in the upper portion of said tubular member of an outside diameter substantially less than the inside of said tubular. member, a valve controlled out-,
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Temperature-Responsive Valves (AREA)
Description
April 12, 1960 w. B. NOLAND ALL WEATHER WATER HYDRANT Filed 00 3, 1958 Anvenlor \Va A m .3 m m Md United States Patent 2,932,313 ALL WEATHER WATER HYDRANT Wayne B. Noland, Avon Lake, Iowa, assignor to Woodford Manufacturing Company, Des Moines, Iowa, a corporation of Iowa Application October 3, 1958, Serial No. 765,164
5 Claims. (Cl. 137-339) This invention relates to an all weather water hydrant and more particularly to a non-draining hydrant that is free of the danger of freezing up during the cold months of the year.
There are now many types of equipment for bringing water above ground from underground water supply lines. Such equipment takes the form of yard hydrants, fire hydrants, stock watering means, drinking fountains and the like. While these devices successfully operate during the warmer months of the year, they often freeze up and become inoperative or broken by the water freezing therein during the colder months of the year. Some effort has been made to solve this problem by providing for the water in the riser pipe to drainout into a pit or like in the ground after the valve has been closed. There are many objections to this solution, i.e., a certain amount of the water is wasted and this waste water creates an insanitary condition around the hydrant. Also this waste water and other foreign matter may well become conta'minataland will find its way back into the hydrant and into the fresh water flowing through the original. drain hole. A still further objection to the present non-freezing hydrant isthat there is a considerable time lapse after the valve has been turned on and before the water flows through the nozzle of the hydrant. Therefore one of the principal objects of my invention is to provide a freezeless, non-draining and sanitary means for making water from a supply line under ground available for use above the ground in all temperatures including freezing temperatures.
More specifically the object of this invention is to providea hydrant or like that utilizes ground temperatures for preventing the like during the colder months of the year.
A still further object of this invention is to provide a hydrant or like for use in all climate conditionsthat wastes no water for the prevention of the freezing of the water when subjected to cold temperatures.
A still further object of this invention is to provide a non-freezing hydrant or like that has a supply of water available immediately upon the opening of the valve.
-A still further object of my invention is to provide a nondraining, non-freezing hydrant or like that is economical in manufacture and durable in use.
These and other objects will be apparent to those skilledintheart.
My invention consists in the construction, arrangements, and combination, of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, specifically pointed out in my claims, and illustrated in the accompanying drawings, in which:
Fig. 1 is a perspective view of my hydrant means installed and ready for use;
Fig. 2 is a longitudinal sectional view of my device connected to water supply line and more fully illustrating its internal construction;
freezing of water in the hydrant or,
2,932,313 Patented Apr. 12, 1960 Fig. 3 is an enlarged cross-sectional view of my device taken on line 3-3 of Fig. 2;
of my hydrant freezing of water is adaptable for use in yard hydrants,
fire hydrants, water fountains and like. However, in the drawings I show the device for use as an ordinary hydrant. In these drawings 1 have used the numeral 10 to designate that part of the ground that is above the normal frost line 11 of a given climate and the numeral 12 to designate that part ofthe ground that is below the frost line and therefore at a temperature less than freezing. The numeral 13 designates an ordinary water line supply pipe communicating with a source of water under pressure and obviously located below the frost line. The numeral 15 designates the elongated tubular pipe of my device. The numeral 16 designates a cap housing threaded onto the upper end of the pipe 15 and providing a compartment 17 directly above the upper end of the pipe 13. The
' numeral 18 designates a cap threaded onto and closing e 15 as shown in Fig. 2. When the lower end of the pipe 15 as shown in Fig. 2. The numeral 19 designates a pipe having an outside diameter less than the inside diameter of the pipe 15. This pipe 19 is positioned and centered within the upper portion of the pipe 15 with its upper end above the upper end of the pipe 15 and terminating inside the compartment 17. The lower end portion of this pipe 19 however is bent to extend downwardly, outwardly and to the left and terminates near the center length of the pipe 15. When the device is installed the lower end of the pipe 19 which terminates inside the pipe 15 will be below the frost line and in the vicinity of the water supply pipe 13 as shown in Fig; 4. The numeral 20' designates a tubular elongated pipe having an outside diameter substantially less than the inside diameter of the pipe 15. This pipe 20 is centered within the lower portion of the pipe 15 and has its lower open end terminating inside the pipe 15 and above the lower end of the pipe 15. The upper end 'portion of the pipe 20 is. bent upwardly and outwardlyand to the right as shown in Fig. 4. This upper bent portion of the pipe 20is adjacent to and complements the lower bent portion of the pipe 19. The pipe 20 has its upper end terminating inside the pipe 15 below the frost line and adjacent the water supply pipe 13. When the device is installed the water supply pipe 13 is threaded into the sideof pipe 15 and its outlet end communicates with the open upperend of the pipe 20 and also the space 21 aroun'dthe pipe 19 in the upper end portion of the pipe the device is installed to a supply pipe 13 the major portion of the length of the device will be imbedded in the ground 10 and 12. The depth the device isimbedded in the ground will of course depend upon climatic conditions but in general the lower end. of'the'pipe 19 and the upper end of the pipe 20 will be below the normal frost line 11. The extreme upper. P ItiOn of the hydrant will of course be above the ground level:22 as shown in Fig. 1,; The numeral 23 designates an enclosed housing embracing the upper portion of the pipe 15 and loosely embracing the cap 16. The inside diameter of this houisng 23 is substantially greater than that of the outside diameter of the pipe 15 in order to provide an enclosed air space 24. The lower end of this pipe housing 23 extends below the frost line 11. The numeral 25 designates an ordinary manually operated hydrant valve having its exit end communicating with the outside atmosphere and its entrance end extending through the upper portion of the housing 23 and threaded into the cap 16 for communication with the inside of the cap 16. When the device is installed in the ground as shown in Fig. 2, the supply water in the unit will not freeze and no draining is necessary even in the coldest months of the year. Several factors combine/to make this desired result possible. Firstly, mostof the ineorn ing water through the supply pipe 13 Willbe directed into the bent receiving upper end of the pipe 20. This por tion of the water which isof a temperature substantially above freezing temperature moves downwardly'through the pipe 20 and thence upwardly through the space between the pipe 20 and lower portion of the pipe 15. Both the pipe 20 and the lower portion of the pipe 15 are substantially below the frost line and the water picks up heat units whereby the water moving upwardly through the pipe 19 and through the space 21;,will be of a temperature higher than that of the water entering the water has its lower portion maintained above freezing temperatures, its upper area will not freeze. The reason for this isthat the water itself circulates. The cold water particles move downwardly and are replaced by the ,upwardly moving warm water particles. Most of the moving water particles will be in the space around the pipe 19, because the top of'the pipe 19 is above the top of the pipe 15, and also the water in the space 21 will be closer to the outside cold atmosphere than the inside of the pipe 19.
My device is not only successful against freezing but is of long trouble free life.
- ..;Some changes may be made in the construction and ar rangement of my all weather water hydrant without departing from the real spirit and purpose of my inventiornjv and it is my intention to cover by my claims, any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope. I claim: 1. In a hydrant, an elongated tubular member-closed at both ends andhaving a lower below frost line por-- tion and an upper above frost line portion, a supply pipe communicating with the inside upper area of the lower portion of said tubular member, a centrally located pipe tion and an upper above frost line portion, a supply pipe communicating with the inside upper area of the lower portion of said tubular member, a pipe in the lower portion of said tubular member having its upper open end bent toward said supply pipe and of an outside diameter substantially less than the inside diameter of said tubular member, a pipe in the upper portion of said tubular member, having its lower end bent away from said supply pipe and of an outside diameter substantially less than the inside of said tubular member, and a valve controlled outlet in the upper portion of said tubular member.
3; In a hydrant, an elongated tubular member closed at both ends and having a lower below frost line portion and an upper above frost line portion, a supply pipe communicating with the inside upper area of the lower portion of said tubular member, a centrally located pipe in the lower portion of said tubular member having its upper open end benttoward said supply pipe and of an outside diameter substantially less than the inside diameter of said tubular member, a centrally located pipe in the upper portion of said tubular member, having its lower-end bent away from said supply'pipeand of an outside diameter substantially less than the inside of said a tubular member, and a valve controlled outlet in the I for this is that if an elongated column of enclosed still 7 upper portion of said tubular member; saidfirst men-.
tioned pipe terminating prior to the lower end of said tubular member and said second mentioned pipe terminating prior to the upper end of said tubular member.
4. In a hydrant, an elongated tubular member closed atboth ends and having a lower below frost line portion and an upper above frost line portion, a supply pipe communicating with the inside upper area of the lower ber of an outside diameter substantially less than the in-Q side of said tubular member, and a valve controlled outin the lower portion of said tubular member having itsupper open end bent toward said supply pipe and of an outside diameter substantially less than the inside diameter of said tubular member, a centrally located pipe in the upper, portion of said tubular member, having its lower end bentaway frornsaid supply pipe and of an outside diameter substantially less than theinside of said tubular member, and a valve controlled outletin the upper portion of said tubular member.
2. In a hydrant, an elongated tubular member closed' at'both ends and having a lower below frost line porportion of said tubular member, a pipe in the lower portion of said tubular member of an outside diameter substantially less than the inside diameter of said tubular member, a pipe in the upper portion of said tubular memlet in the upper portion of said tubular member.
In a hydrant, an elongated tubular member closed at both ends and having a lower below frost line portion and an upper above frostline portion, a supplypipe communicating with the inside upper area ofthe lower portion of said tubular member, a pipe in the lower pop tion of said tubular member of an outside diameter substantially less than the inside diameter of said tubular member, a pipe in the upper portion of said tubular member of an outside diameter substantially less than the inside of said tubular. member, a valve controlled out-,
let in' the upper portion of said tubular member, and a tubular housing of an inside diameter substantially greater than that of the outside diameter of said tubular member embracing the upper portion of said tubular "member,
References Cited in the file of this patent UNITED STATES PATENTS 54,845 Bower May 22, 1866 349,202 Bassett Sept. 14, 1886 5239,3571 Link Aug. 31, 1897. 822,920 Callaghan Iune 12, 1906 1,322,014 7 Hanna Nov. 18, 1919 s i July 7, -9
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76516458 US2932313A (en) | 1958-10-03 | 1958-10-03 | All weather water hydrant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76516458 US2932313A (en) | 1958-10-03 | 1958-10-03 | All weather water hydrant |
Publications (1)
Publication Number | Publication Date |
---|---|
US2932313A true US2932313A (en) | 1960-04-12 |
Family
ID=25072820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US76516458 Expired - Lifetime US2932313A (en) | 1958-10-03 | 1958-10-03 | All weather water hydrant |
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US (1) | US2932313A (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3048397A (en) * | 1958-02-27 | 1962-08-07 | American Mach & Foundry | Bowling pin elevating mechanism |
US3103946A (en) * | 1959-12-14 | 1963-09-17 | Troxell Monte Evan | System for prevention of pipe freezing |
US3220470A (en) * | 1962-10-08 | 1965-11-30 | Joseph C Balch | Soil refrigerating system |
US3580330A (en) * | 1968-01-03 | 1971-05-25 | Tech De Geothermie Soc | Geothermal system |
US4091261A (en) * | 1976-09-13 | 1978-05-23 | Noland Wayne B | Electrically heated animal watering device |
US4111258A (en) * | 1976-05-10 | 1978-09-05 | Exxon Production Research Company | Split air convection pile |
US4218607A (en) * | 1978-05-08 | 1980-08-19 | Noland Wayne B | Water circulating device for an animal watering apparatus |
US4380245A (en) * | 1981-01-26 | 1983-04-19 | Hefner Irving V | Antifreeze cover assembly for external faucets |
FR2539158A1 (en) * | 1983-01-06 | 1984-07-13 | Persohn Paul | Device for preventing freezing by the transfer of underground heat |
US4465020A (en) * | 1982-09-13 | 1984-08-14 | Schafer Kenneth L | Apparatus for prevention of freezing of water line |
EP0116005A1 (en) * | 1983-01-06 | 1984-08-15 | Paul Persohn | Apparatus for protection against freezing in water meters and water taps |
FR2551110A1 (en) * | 1983-08-24 | 1985-03-01 | Persohn Paul | Freeze-protection device for equipment used for storing or supplying liquid sensitive to low temperatures in particular water. |
FR2606052A1 (en) * | 1986-10-31 | 1988-05-06 | Cahors App Elec | Device for supporting and protecting a water meter against frost and its method of installation |
US5664597A (en) * | 1994-02-01 | 1997-09-09 | Miskiewicz; William A. | Cover for enclosing a fixed article, such as a fire hydrant, and a method of using the same |
US5791370A (en) * | 1996-12-03 | 1998-08-11 | Harland; Robert P. | Apparatus for supplying and continuously circulating fluid |
US6158455A (en) * | 1998-08-06 | 2000-12-12 | Marshall; William H. | Antifreeze cap for faucet |
US6237629B1 (en) | 1999-06-24 | 2001-05-29 | Clyde H. Zelch | Apparatus for positive water retention and circulation in storage tanks |
US20110286728A1 (en) * | 2010-05-24 | 2011-11-24 | Xiotin Industry Ltd. | Heater and electric instant water heater |
US20220307241A1 (en) * | 2021-03-26 | 2022-09-29 | Water Kase LLC | Standpipe freeze protection device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US54845A (en) * | 1866-05-22 | Improvement in hydrants | ||
US349202A (en) * | 1886-09-14 | System of water-distribution | ||
US589357A (en) * | 1897-08-31 | Frost-jacket for fire-plugs | ||
US822920A (en) * | 1905-06-07 | 1906-06-12 | James W Callaghan | Hydrant. |
US1322014A (en) * | 1919-11-18 | ttniied | ||
US2893706A (en) * | 1955-11-29 | 1959-07-07 | Smith Arthur Leroy | Capsule type heat exchanger |
-
1958
- 1958-10-03 US US76516458 patent/US2932313A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US54845A (en) * | 1866-05-22 | Improvement in hydrants | ||
US349202A (en) * | 1886-09-14 | System of water-distribution | ||
US589357A (en) * | 1897-08-31 | Frost-jacket for fire-plugs | ||
US1322014A (en) * | 1919-11-18 | ttniied | ||
US822920A (en) * | 1905-06-07 | 1906-06-12 | James W Callaghan | Hydrant. |
US2893706A (en) * | 1955-11-29 | 1959-07-07 | Smith Arthur Leroy | Capsule type heat exchanger |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3048397A (en) * | 1958-02-27 | 1962-08-07 | American Mach & Foundry | Bowling pin elevating mechanism |
US3103946A (en) * | 1959-12-14 | 1963-09-17 | Troxell Monte Evan | System for prevention of pipe freezing |
US3220470A (en) * | 1962-10-08 | 1965-11-30 | Joseph C Balch | Soil refrigerating system |
US3580330A (en) * | 1968-01-03 | 1971-05-25 | Tech De Geothermie Soc | Geothermal system |
US4111258A (en) * | 1976-05-10 | 1978-09-05 | Exxon Production Research Company | Split air convection pile |
US4091261A (en) * | 1976-09-13 | 1978-05-23 | Noland Wayne B | Electrically heated animal watering device |
US4218607A (en) * | 1978-05-08 | 1980-08-19 | Noland Wayne B | Water circulating device for an animal watering apparatus |
US4380245A (en) * | 1981-01-26 | 1983-04-19 | Hefner Irving V | Antifreeze cover assembly for external faucets |
US4465020A (en) * | 1982-09-13 | 1984-08-14 | Schafer Kenneth L | Apparatus for prevention of freezing of water line |
EP0116005A1 (en) * | 1983-01-06 | 1984-08-15 | Paul Persohn | Apparatus for protection against freezing in water meters and water taps |
FR2539158A1 (en) * | 1983-01-06 | 1984-07-13 | Persohn Paul | Device for preventing freezing by the transfer of underground heat |
FR2551110A1 (en) * | 1983-08-24 | 1985-03-01 | Persohn Paul | Freeze-protection device for equipment used for storing or supplying liquid sensitive to low temperatures in particular water. |
FR2606052A1 (en) * | 1986-10-31 | 1988-05-06 | Cahors App Elec | Device for supporting and protecting a water meter against frost and its method of installation |
US5664597A (en) * | 1994-02-01 | 1997-09-09 | Miskiewicz; William A. | Cover for enclosing a fixed article, such as a fire hydrant, and a method of using the same |
US5791370A (en) * | 1996-12-03 | 1998-08-11 | Harland; Robert P. | Apparatus for supplying and continuously circulating fluid |
US6158455A (en) * | 1998-08-06 | 2000-12-12 | Marshall; William H. | Antifreeze cap for faucet |
US6237629B1 (en) | 1999-06-24 | 2001-05-29 | Clyde H. Zelch | Apparatus for positive water retention and circulation in storage tanks |
US20110286728A1 (en) * | 2010-05-24 | 2011-11-24 | Xiotin Industry Ltd. | Heater and electric instant water heater |
US20220307241A1 (en) * | 2021-03-26 | 2022-09-29 | Water Kase LLC | Standpipe freeze protection device |
US11680393B2 (en) * | 2021-03-26 | 2023-06-20 | Water Kase LLC | Standpipe freeze protection device |
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Owner name: WOODFORD INDUSTRIES, INC., COLORADO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WOODFORD MANUFACTURING COMPANY;REEL/FRAME:005012/0064 Effective date: 19880808 |