EP3167126A1 - Locking assembly for fire hydrant - Google Patents

Locking assembly for fire hydrant

Info

Publication number
EP3167126A1
EP3167126A1 EP15749888.2A EP15749888A EP3167126A1 EP 3167126 A1 EP3167126 A1 EP 3167126A1 EP 15749888 A EP15749888 A EP 15749888A EP 3167126 A1 EP3167126 A1 EP 3167126A1
Authority
EP
European Patent Office
Prior art keywords
fire hydrant
water outlet
locking
assembly according
locking assembly
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.)
Withdrawn
Application number
EP15749888.2A
Other languages
German (de)
French (fr)
Inventor
Leon Notkin
Ehud DINERMAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mul T Lock Technologies Ltd
Original Assignee
Mul T Lock Technologies Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mul T Lock Technologies Ltd filed Critical Mul T Lock Technologies Ltd
Publication of EP3167126A1 publication Critical patent/EP3167126A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B9/00—Methods or installations for drawing-off water
    • E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
    • E03B9/04—Column hydrants
    • E03B9/06—Covers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/20—Hydrants, e.g. wall-hoses, wall units, plug-in cabinets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/12—Covers for housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • F16K35/10—Means to prevent accidental or unauthorised actuation with locking caps or locking bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L35/00—Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices

Definitions

  • the present invention relates generally to locks for fire hydrants and particularly to a locking assembly for locking or blocking a water outlet of a fire hydrant.
  • Firefighters need quick and reliable access to water to fight fires safely and effectively. Unfortunately, it is relatively easy for unauthorized users to gain access to currently installed fire hydrants. Unauthorized use of fire hydrants is problematic for several reasons. First, unauthorized use of fire hydrants wastes water. Second, unauthorized use of fire hydrants can lower the water pressure to the point that water cannot be moved from the fire hydrant to the engine pumper, which endangers firefighters and the communities they serve. Third, in the process of gaining access to a fire hydrant, unauthorized users can damage the fire hydrant to the point that it must be either repaired or replaced. Thus, to ensure that water is readily available when needed, communities must expend significant amounts of labor and financial resources to repair and replace fire hydrants damaged by unauthorized users.
  • the present invention seeks to provide an improved locking assembly for locking or blocking a water outlet of a fire hydrant, as described more in detail hereinbelow.
  • a locking assembly for a fire hydrant including a water outlet cover securable to a water outlet of a fire hydrant, the water outlet cover including a first portion and a second portion, and a locking device including a locking member engageable with the first and second portions, the locking member having a locked position and an unlocked position, wherein in the locked position, the locking member is disengageable from the first and second portions and the first portion is freely rotatable with respect to the water outlet of the fire hydrant, and wherein in the unlocked position, the locking member engages the first and second portions such that the water outlet cover is removable from the water outlet.
  • the locking device may be mechanical, electromechanical and/or operable from a control center distanced from the fire hydrant.
  • an override device such that in the locked position, the water outlet cover is removable from the water outlet by application of the override device.
  • the override device may include a breakable element which is broken to gain access to the water outlet.
  • a sensor that senses water pressure in a portion of the fire hydrant. The sensor may alert of a difference in water pressure in the portion of the fire hydrant. A sensor may sense and transmit an operating parameter of the fire hydrant to a control center. The water outlet cover seals the fire hydrant from ingress of dangerous materials.
  • Fig. 1 is a simplified pictorial illustration of a lock assembly for a fire hydrant, constructed and operative in accordance with an embodiment of the present invention, with a mechanical locking device;
  • Figs. 2A and 2B are simplified sectional illustrations of the lock assembly of Fig. 1 with a locking member in respective locked and unlocked positions;
  • Fig. 3 is a simplified pictorial illustration of a lock assembly for a fire hydrant, constructed and operative in accordance with another embodiment of the present invention, with an electromechanical locking device;
  • Fig. 4 is a simplified sectional illustration of the lock assembly of Fig. 3 with a locking member in an unlocked position;
  • Fig. 5 is a simplified pictorial illustration of a lock assembly for a fire hydrant, constructed and operative in accordance with another embodiment of the present invention, with a remotely operable electromechanical locking device;
  • Fig. 6 is a simplified pictorial illustration of an override device for the lock assembly for a fire hydrant, constructed and operative in accordance with an embodiment of the present invention.
  • FIGs. 1-2B illustrate a lock assembly 10 for a fire hydrant 12, constructed and operative in accordance with a non-limiting embodiment of the present invention.
  • Locking assembly 10 includes a water outlet cover (14A, 14B) securable to a water outlet 16 of fire hydrant 12.
  • the water outlet cover includes a first portion 14A and a second portion 14B.
  • the first portion 14 A without limitation, includes a cylindrical cap member 18 with a hollow open chamber 20.
  • a lock mounting member 22 is secured to the center of cap member 18, such as by threaded engagement or welding or any other means of attachment.
  • the lock mounting member 22 is formed with apertures 23.
  • a locking device is mounted in lock mounting member 22.
  • the locking device includes a cylinder lock 24, which is key- operated. Cylinder lock 24 is secured to lock mounting member 22 with a nut 26. Cylinder lock 24 has a plug 28 which is rotatable by means of an authorized key (not shown), as is well known in the art. The end of the plug 28 opposite to the key-entrance end is attached to an actuator 30. Actuator 30 is cylindrical in shape and is formed with a longitudinal open groove 32 (Fig. 1). A locking member 34, such as a ball, is arranged to be received in groove 32 of actuator 30, as will be explained more in detail below.
  • Second portion 14B includes a central hub 36 (Figs. 2A and 2B) which extends from a circular flange 38 in which are formed a plurality of apertures 40 (which may be spaced circumferentially about the center of second portion 14B).
  • Central hub 36 is formed with one or more ridges 42 (two are shown in the illustrated embodiment in Fig. 1).
  • Second portion 14B is sealingly mounted on the water outlet 16 of fire hydrant 12 with seals 44, such as O-rings. Second portion 14B is secured to the water outlet 16, such as by a bayonet connection 46.
  • second portion 14B and a portion of the water outlet 16 are received in the hollow open chamber 20 of first portion 14A.
  • the locked position i.e., cylinder lock 24 is locked
  • the first portion 14A freely rotates about the second portion 14B.
  • locking member 34 is trapped in actuator 30 and does not protrude from apertures 23 of lock mounting member 22.
  • locking member 34 is disengageable from the first and second portions 14A and 14B and the first portion 14A is freely rotatable with respect to water outlet 16. This prevents unauthorized access to the water outlet 16.
  • the water outlet cover seals the fire hydrant from ingress of dangerous materials.
  • Figs. 3-4 illustrate a lock assembly for a fire hydrant, constructed and operative in accordance with another embodiment of the present invention.
  • This embodiment is basically the same as that of Fig. 1, except that the embodiment of Figs. 3 and 4 includes an electromechanical locking device 50, such as a motor (e.g., step motor or gear motor).
  • Control electronics 52 including one or more batteries 54, may be provided on a printed circuit board 56 for operating electromechanical locking device 50.
  • a cover 58 may be used to cover the electronics and may be secured to first portion 14A with screws 59.
  • the electromechanical locking device 50 may be operated by a transponder (not shown), as known in the art.
  • Fig. 5 illustrates a lock assembly for a fire hydrant, constructed and operative in accordance with yet another embodiment of the present invention.
  • This embodiment is basically the same as that of Fig. 3, except that the electromechanical locking device 50 is operable from a control center 62 distanced from the fire hydrant by means of control electronics 60, such as a transceiver and other electronics that work with wireless communication, such as but not limited to, infrared, BLUETOOTH, RF, cellular telephone communication, internet communication and so forth.
  • control electronics 60 such as a transceiver and other electronics that work with wireless communication, such as but not limited to, infrared, BLUETOOTH, RF, cellular telephone communication, internet communication and so forth.
  • the lock assembly can be opened by remote communication from command (control) center 62.
  • a different cover 58A may be used to cover the electronics.
  • the override device 70 may include an interface to gain access to a breakable element in first portion 14A (such as a mechanical fuse) which is broken to gain access to the water outlet. For example, breaking of the fuse gains access to one of the apertures 40 of second portion 14B. Thus, even in the locked position, the override device 70 may be used to gain access to turn the second portion 14B, thereby allowing the water outlet cover to be removed from the water outlet. This may be useful if the fire department has lost the keys to the lock.
  • a breakable element in first portion 14A such as a mechanical fuse
  • a sensor 72 (Fig. 2 A) may be provided that senses water pressure in a portion of the fire hydrant.
  • the sensor 72 may be a pressure sensor that can alert of a difference in water pressure in the portion of the fire hydrant.
  • the sensor may sense and transmit an operating parameter of the fire hydrant to control center 62.
  • an end user can be provided with the option of selecting which locking device to use: either a mechanical locking device, an electromechanical locking device, or a locking device that is operable from a control center distanced from the fire hydrant.
  • the invention may advantageously be provided as a kit.
  • the locking assembly kit for the fire hydrant includes a set of locking devices, each locking device including a locking member engageable with the first and second portions, as described above.
  • One of the locking devices is mechanical, another one of the locking devices is electromechanical and another one of the locking devices is operable from a control center distanced from the fire hydrant. The end user selects which locking device to use for the particular application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

A locking assembly (10) for a fire hydrant (12) includes a water outlet cover securable to a water outlet (16) of a fire hydrant (12). The water outlet cover includes a first portion (14A) and a second portion (14B). A locking device includes a locking member (34) engageable with the first and second portions (14A, 14B). The locking member (34) has a locked position and an unlocked position. In the locked position, the locking member (34) is disengageable from the first and second portions (14A, 14B) and the first portion (14A) is freely rotatable with respect to the water outlet (16) of the fire hydrant (12). In the unlocked position, the locking member (34) engages the first and second portions (14A, 14B) such that the water outlet cover is removable from the water outlet (16). The locking device may be mechanical, electromechanical and/or operable from a control center distanced from the fire hydrant (12).

Description

LOCKING ASSEMBLY FOR FIRE HYDRANT
FIELD OF THE INVENTION
The present invention relates generally to locks for fire hydrants and particularly to a locking assembly for locking or blocking a water outlet of a fire hydrant.
BACKGROUND OF THE INVENTION
Firefighters need quick and reliable access to water to fight fires safely and effectively. Unfortunately, it is relatively easy for unauthorized users to gain access to currently installed fire hydrants. Unauthorized use of fire hydrants is problematic for several reasons. First, unauthorized use of fire hydrants wastes water. Second, unauthorized use of fire hydrants can lower the water pressure to the point that water cannot be moved from the fire hydrant to the engine pumper, which endangers firefighters and the communities they serve. Third, in the process of gaining access to a fire hydrant, unauthorized users can damage the fire hydrant to the point that it must be either repaired or replaced. Thus, to ensure that water is readily available when needed, communities must expend significant amounts of labor and financial resources to repair and replace fire hydrants damaged by unauthorized users.
SUMMARY OF THE INVENTION
The present invention seeks to provide an improved locking assembly for locking or blocking a water outlet of a fire hydrant, as described more in detail hereinbelow.
There is thus provided in accordance with an embodiment of the present invention a locking assembly for a fire hydrant including a water outlet cover securable to a water outlet of a fire hydrant, the water outlet cover including a first portion and a second portion, and a locking device including a locking member engageable with the first and second portions, the locking member having a locked position and an unlocked position, wherein in the locked position, the locking member is disengageable from the first and second portions and the first portion is freely rotatable with respect to the water outlet of the fire hydrant, and wherein in the unlocked position, the locking member engages the first and second portions such that the water outlet cover is removable from the water outlet. The locking device may be mechanical, electromechanical and/or operable from a control center distanced from the fire hydrant.
In accordance with an embodiment of the present invention there is provided an override device, such that in the locked position, the water outlet cover is removable from the water outlet by application of the override device. For example, the override device may include a breakable element which is broken to gain access to the water outlet. In accordance with an embodiment of the present invention there is provided a sensor that senses water pressure in a portion of the fire hydrant. The sensor may alert of a difference in water pressure in the portion of the fire hydrant. A sensor may sense and transmit an operating parameter of the fire hydrant to a control center. The water outlet cover seals the fire hydrant from ingress of dangerous materials.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be understood and appreciated more fully from the following detailed description taken in conjunction with the drawings in which:
Fig. 1 is a simplified pictorial illustration of a lock assembly for a fire hydrant, constructed and operative in accordance with an embodiment of the present invention, with a mechanical locking device;
Figs. 2A and 2B are simplified sectional illustrations of the lock assembly of Fig. 1 with a locking member in respective locked and unlocked positions;
Fig. 3 is a simplified pictorial illustration of a lock assembly for a fire hydrant, constructed and operative in accordance with another embodiment of the present invention, with an electromechanical locking device;
Fig. 4 is a simplified sectional illustration of the lock assembly of Fig. 3 with a locking member in an unlocked position;
Fig. 5 is a simplified pictorial illustration of a lock assembly for a fire hydrant, constructed and operative in accordance with another embodiment of the present invention, with a remotely operable electromechanical locking device;
Fig. 6 is a simplified pictorial illustration of an override device for the lock assembly for a fire hydrant, constructed and operative in accordance with an embodiment of the present invention.
DETAILED DESCRIPTION OF EMBODIMENTS
Reference is now made to Figs. 1-2B, which illustrate a lock assembly 10 for a fire hydrant 12, constructed and operative in accordance with a non-limiting embodiment of the present invention.
Locking assembly 10 includes a water outlet cover (14A, 14B) securable to a water outlet 16 of fire hydrant 12. The water outlet cover includes a first portion 14A and a second portion 14B. Referring to Figs. 2A-2B, the first portion 14 A, without limitation, includes a cylindrical cap member 18 with a hollow open chamber 20. A lock mounting member 22 is secured to the center of cap member 18, such as by threaded engagement or welding or any other means of attachment. The lock mounting member 22 is formed with apertures 23.
A locking device is mounted in lock mounting member 22. In the illustrated embodiment of Fig. 1, the locking device includes a cylinder lock 24, which is key- operated. Cylinder lock 24 is secured to lock mounting member 22 with a nut 26. Cylinder lock 24 has a plug 28 which is rotatable by means of an authorized key (not shown), as is well known in the art. The end of the plug 28 opposite to the key-entrance end is attached to an actuator 30. Actuator 30 is cylindrical in shape and is formed with a longitudinal open groove 32 (Fig. 1). A locking member 34, such as a ball, is arranged to be received in groove 32 of actuator 30, as will be explained more in detail below.
Second portion 14B, without limitation, includes a central hub 36 (Figs. 2A and 2B) which extends from a circular flange 38 in which are formed a plurality of apertures 40 (which may be spaced circumferentially about the center of second portion 14B). Central hub 36 is formed with one or more ridges 42 (two are shown in the illustrated embodiment in Fig. 1).
Second portion 14B is sealingly mounted on the water outlet 16 of fire hydrant 12 with seals 44, such as O-rings. Second portion 14B is secured to the water outlet 16, such as by a bayonet connection 46.
As seen in Figs. 2A and 2B, second portion 14B and a portion of the water outlet 16 are received in the hollow open chamber 20 of first portion 14A. In the locked position (i.e., cylinder lock 24 is locked), which is shown in Fig. 2A, the first portion 14A freely rotates about the second portion 14B. In this locked position, locking member 34 is trapped in actuator 30 and does not protrude from apertures 23 of lock mounting member 22. In other words, in the locked position, locking member 34 is disengageable from the first and second portions 14A and 14B and the first portion 14A is freely rotatable with respect to water outlet 16. This prevents unauthorized access to the water outlet 16. The water outlet cover seals the fire hydrant from ingress of dangerous materials.
In the unlocked position (i.e., cylinder lock 24 is unlocked), which is shown in Fig. 2B, actuator 30 has been rotated such that the locking member 34 protrudes out of actuator 30 and apertures 23. Pins 48 (such as roll pins) may be inserted in first and second portions 14A and 14B so that the two portions can rotate relative to each other but are restrained from moving axially relative to each other. In this unlocked position, locking member 34 can now press against splines 42 of second portion 14B so that rotation of first portion 14A causes rotation of second portion 14B to enable removing second portion 14B from the water outlet 16. In other words, in the unlocked position, locking member 34 engages the first and second portions 14A and 14B such that the water outlet cover is removable from the water outlet 16 to gain access to the water.
In the embodiment of Fig. 1, the locking device is mechanical. Reference is now made to Figs. 3-4, which illustrate a lock assembly for a fire hydrant, constructed and operative in accordance with another embodiment of the present invention. This embodiment is basically the same as that of Fig. 1, except that the embodiment of Figs. 3 and 4 includes an electromechanical locking device 50, such as a motor (e.g., step motor or gear motor). Control electronics 52, including one or more batteries 54, may be provided on a printed circuit board 56 for operating electromechanical locking device 50. A cover 58 may be used to cover the electronics and may be secured to first portion 14A with screws 59. The electromechanical locking device 50 may be operated by a transponder (not shown), as known in the art.
Reference is now made to Fig. 5, which illustrates a lock assembly for a fire hydrant, constructed and operative in accordance with yet another embodiment of the present invention. This embodiment is basically the same as that of Fig. 3, except that the electromechanical locking device 50 is operable from a control center 62 distanced from the fire hydrant by means of control electronics 60, such as a transceiver and other electronics that work with wireless communication, such as but not limited to, infrared, BLUETOOTH, RF, cellular telephone communication, internet communication and so forth. In this manner, the lock assembly can be opened by remote communication from command (control) center 62. A different cover 58A may be used to cover the electronics.
Reference is now made to Fig. 6, which illustrates an override device 70 for the lock assembly. The override device 70 may include an interface to gain access to a breakable element in first portion 14A (such as a mechanical fuse) which is broken to gain access to the water outlet. For example, breaking of the fuse gains access to one of the apertures 40 of second portion 14B. Thus, even in the locked position, the override device 70 may be used to gain access to turn the second portion 14B, thereby allowing the water outlet cover to be removed from the water outlet. This may be useful if the fire department has lost the keys to the lock.
In accordance with an embodiment of the present invention, a sensor 72 (Fig. 2 A) may be provided that senses water pressure in a portion of the fire hydrant. The sensor 72 may be a pressure sensor that can alert of a difference in water pressure in the portion of the fire hydrant. The sensor may sense and transmit an operating parameter of the fire hydrant to control center 62.
In contrast with all the known prior art, an end user can be provided with the option of selecting which locking device to use: either a mechanical locking device, an electromechanical locking device, or a locking device that is operable from a control center distanced from the fire hydrant. As another alternative, the invention may advantageously be provided as a kit. The locking assembly kit for the fire hydrant includes a set of locking devices, each locking device including a locking member engageable with the first and second portions, as described above. One of the locking devices is mechanical, another one of the locking devices is electromechanical and another one of the locking devices is operable from a control center distanced from the fire hydrant. The end user selects which locking device to use for the particular application.

Claims

CLAIMS What is claimed is:
1. A locking assembly for a fire hydrant comprising:
a water outlet cover securable to a water outlet of a fire hydrant, said water outlet cover comprising a first portion and a second portion; and
a locking device comprising a locking member engageable with said first and second portions, said locking member having a locked position and an unlocked position, wherein in the locked position, said locking member is disengageable from said first and second portions and said first portion is freely rotatable with respect to the water outlet of the fire hydrant, and wherein in the unlocked position, said locking member engages said first and second portions such that said water outlet cover is removable from the water outlet.
2. The locking assembly according to claim 1, further comprising an override device, such that in the locked position, said water outlet cover is removable from the water outlet by application of said override device.
3. The locking assembly according to claim 1, wherein said locking device is mechanical.
4. The locking assembly according to claim 1, wherein said locking device is electromechanical.
5. The locking assembly according to claim 1, wherein said locking device is operable from a control center distanced from the fire hydrant.
6. The locking assembly according to claim 2, wherein said override device comprises a breakable element which is broken to gain access to the water outlet.
7. The locking assembly according to claim 1, further comprising a sensor that senses water pressure in a portion of the fire hydrant.
8. The locking assembly according to claim 7, wherein said sensor is operable to alert of a difference in water pressure in said portion of the fire hydrant.
9. The locking assembly according to claim 1, further comprising a sensor operable to sense and transmit an operating parameter of the fire hydrant to a control center.
10. The locking assembly according to claim 1, wherein said water outlet cover seals said fire hydrant from ingress of dangerous materials.
11. A method for protecting a fire hydrant comprising:
providing a locking assembly according to claim 1, and providing a selection of locking devices for an end user to select, wherein the end user selects either a mechanical locking device, an electromechanical locking device, or a locking device that is operable from a control center distanced from the fire hydrant.
EP15749888.2A 2014-07-10 2015-07-05 Locking assembly for fire hydrant Withdrawn EP3167126A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL23360614 2014-07-10
PCT/IB2015/055068 WO2016005869A1 (en) 2014-07-10 2015-07-05 Locking assembly for fire hydrant

Publications (1)

Publication Number Publication Date
EP3167126A1 true EP3167126A1 (en) 2017-05-17

Family

ID=53835485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15749888.2A Withdrawn EP3167126A1 (en) 2014-07-10 2015-07-05 Locking assembly for fire hydrant

Country Status (6)

Country Link
EP (1) EP3167126A1 (en)
CN (1) CN106573160B (en)
AR (1) AR101128A1 (en)
TW (1) TWI653072B (en)
UY (1) UY36205A (en)
WO (1) WO2016005869A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108458205A (en) * 2018-04-23 2018-08-28 浙江省建材集团建筑产业化有限公司 A kind of fire_fighting pipe network connector protection device
CN114134977B (en) * 2021-12-22 2023-12-05 岳峰 Fire-fighting water supply and drainage equipment and application method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL91016A (en) * 1989-07-18 1992-12-01 Ariah Poms Fire hydrant closures
US8991434B2 (en) * 2006-09-14 2015-03-31 The Knox Company Locking cap system
US9315973B2 (en) * 2011-09-12 2016-04-19 Miltel Communication Ltd. Fire hydrant cover including a controller coupled with a transceiver and a lock mechanism
CN203160326U (en) * 2013-03-26 2013-08-28 无锡市崇安区科技创业服务中心 Fire hydrant

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2016005869A1 *

Also Published As

Publication number Publication date
AR101128A1 (en) 2016-11-23
TWI653072B (en) 2019-03-11
WO2016005869A1 (en) 2016-01-14
CN106573160A (en) 2017-04-19
CN106573160B (en) 2019-08-30
UY36205A (en) 2016-01-29
TW201607582A (en) 2016-03-01

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