US20060043731A1 - Locking device for an air brake hose coupling member - Google Patents

Locking device for an air brake hose coupling member Download PDF

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Publication number
US20060043731A1
US20060043731A1 US11/201,889 US20188905A US2006043731A1 US 20060043731 A1 US20060043731 A1 US 20060043731A1 US 20188905 A US20188905 A US 20188905A US 2006043731 A1 US2006043731 A1 US 2006043731A1
Authority
US
United States
Prior art keywords
air brake
brake hose
locking
hose coupling
locking device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/201,889
Other languages
English (en)
Inventor
Howard Sommerfeld
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.)
Wabtec Holding Corp
Original Assignee
Wabtec Holding Corp
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 Wabtec Holding Corp filed Critical Wabtec Holding Corp
Priority to US11/201,889 priority Critical patent/US20060043731A1/en
Assigned to WABTEC HOLDING CORP reassignment WABTEC HOLDING CORP ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SOMMERFELD, HOWARD
Priority to MX2007001702A priority patent/MX2007001702A/es
Priority to PCT/US2005/029333 priority patent/WO2006026173A1/fr
Priority to CA2576743A priority patent/CA2576743C/fr
Publication of US20060043731A1 publication Critical patent/US20060043731A1/en
Priority to US11/728,249 priority patent/US7461869B2/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/58—Auxiliary devices
    • B60D1/62—Auxiliary devices involving supply lines, electric circuits, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
    • B60T17/043—Brake line couplings, air hoses and stopcocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G5/00—Couplings for special purposes not otherwise provided for
    • B61G5/06—Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables
    • B61G5/08—Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables for fluid conduits
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
    • F16L37/256—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling not being coaxial with the pipe

Definitions

  • the present invention relates, in general, to air brake hose couplings commonly called “glad hands” which detachably connect the ends of air brake hoses and, more particularly, this invention relates to a locking device for such air brake hose couplings which prevents unintended complete rotational uncoupling thereof and, yet more particularly, the instant invention relates to a locking device for preventing unintended separation of coupled air brake hoses for railroad cars and/or trucks.
  • these air brake hose couplings are joined by a rotational movement enabling engagement of mating lugs and flanges extending from each coupling body and forming an air tight passage between two air hoses.
  • such connection is located between the opposed ends of two coupled railroad cars and is also located in close proximity to the ground surface as each hose is suspended by an adjustable hose support which is attached to the air brake hose coupling at one end and to a respective railroad car coupler at a distal end. The hose support must be adjusted for each individual air brake hose coupling connection to maintain a predetermined clearance with the ground surface.
  • the air pressure communicated through the connected air lines maintains air brakes of the individual railroad cars in the released position with any loss of the air pressure resulting in a brake application and, more importantly, if unintended may result in unwanted and undesired stopping of the entire train consist.
  • U.S. Pat. No. 5,971,442 to Kozinski et al; U.S. Pat. No. 5,388,864 and U.S. Pat. No. 3,879,066, both to Kozinski disclose a flange protruding outwardly and forwardly from a rear portion of a housing and is provided with a lip engaging a similar lip formed on the arcuate locking lug of the other housing.
  • U.S. Pat. No. 5,911,444 to Buchter et al teaches a stop assembly having a spring loaded pin disposed within a bore of a first coupling housing. Pressurization of the brake system causes movement of the stop assembly to obstruct a path of the mating coupling housing thereby preventing rotational uncoupling of the housings.
  • U.S. Pat. No. 3,892,431 to Booth; and U.S. Pat. No. 1,354,643 to Brower disclose a spring loaded pin being disposed within a bore of a coupling housing and engaging either a hole, slot or a socket.
  • U.S. Pat. No. 6,669,237 to Burch et al teaches a pivotally mounted pawl mounted to one coupling member and having a ramp for engaging the other coupling member.
  • U.S. Pat. No. 5,685,573 to Nadherny et al discloses a band assembly having a strap attached to an air hose and oriented in a predetermined relationship to the first air brake hose coupling and an anti-rotational wire attached to the strap at one end and having a second end engaging the lip of a mating air brake hose coupling to prevent rotational uncoupling.
  • U.S. Pat. No. 5,251,666 to Kimball et al discloses a fork like locking member mounted to reciprocate on the coupling body adjacent one of the flanges between release and engaged positions and a leaf spring urging such locking member into the engage position to prevent passage of a corresponding flange of the other coupling body.
  • U.S. Pat. No. 4,747,623 to Newcomb et al teaches an attachment secured to one part of the air brake hose coupling which includes a rigid blocking member having a yoke and a blocking pin installed through such yoke and being held with a releasable wire bail or tether.
  • the blocking pin prevents rotation of the coupling section.
  • the present invention provides a locking device for a pair of mating air brake hose coupling members, commonly known as glad hands.
  • such locking device is installed intermediate one air brake hose coupling and a hose support member which is adjusted to provide a predetermined clearance between the air brake hose coupling and a railway track or a road surface.
  • Such locking device includes a housing with a first aperture for attachment to the air brake hose coupling and a second aperture for attachment to the hose support member.
  • a locking pin is reciprocally disposed within the housing and is being urged by a compressible resilient member, such as a spring, in one direction for preventing undesirable complete rotational uncoupling of such pair of mating air brake hose coupling members.
  • the locking pin is manually movable in the opposite direction during coupling and uncoupling under normal operating conditions.
  • a handle is attached to one end thereof and extends outwardly from the housing. The handle may be further used to move the locking pin in both directions and eliminate the need for the compressible resilient member.
  • the housing portion is formed integral to the body of the air brake hose coupling.
  • It is therefore one of the primary objects of the present invention is to provide a locking device for a pair of mating air brake hose couplings.
  • a further object of the present invention is to provide a locking device for a pair of mating air brake hose couplings which is suitable for installation on any standard AAR air brake hose coupling.
  • Another object of the present invention is to provide a locking device for a pair of mating air brake hose couplings which prevents undesirable complete rotational uncoupling during normal operation.
  • Yet another object of the present invention is to provide a locking device for a pair of mating air brake hose couplings which does not require use of special installation tools.
  • An additional object of the present invention is to provide a locking device for a pair of mating air brake hose couplings which enables ease of manual coupling and uncoupling.
  • FIG. 1 is a side elevation view of a conventional air brake house coupling member and a suspension thereof;
  • FIG. 2 is a side elevation view of a locking device of the present invention as installed on a conventional air brake hose coupling member;
  • FIG. 3 is a plan view of a locking device of the present invention.
  • FIG. 4 is a side elevation view a locking device of the present invention as installed on a pair of conventional air brake hose coupling members in their locked position;
  • FIG. 5 is a side elevation view a locking device of the present invention as installed on a pair of conventional air brake hose coupling members moved towards their unlocked position.
  • FIG. 1 therein illustrated a prior art air brake hose assembly 10 having a first end connected to an air brake system 12 of a rail car (not shown) and having a second end terminated with an air brake hose coupling, generally designated 20 .
  • Such air brake hose assembly 10 is suspended by a hose support 14 having a first end connected to a coupler 16 of the rail car and having a second end connected to the air brake hose coupling 20 .
  • An adjustment means 15 may be provided within hose support 14 for maintaining the air brake hose coupling 20 at a predetermined distance from a rail 18 .
  • the air brake hose coupling 20 includes a generally tubular body 22 with a longitudinal axis 24 and an inner coupling face 26 at a first end that is aligned generally in a plane parallel to the longitudinal axis 24 and extending around an air passage (not shown).
  • a neck 28 extends from a second end of the tubular body 22 for connection to air brake hose assembly 10 .
  • a stop 34 is formed on tubular body 22 and extends outwardly therefrom. The stop 34 may be provided with a V-shaped notch 36 .
  • the air brake hose coupling 20 further includes an arcuate locking flange 38 projecting outwardly from the first end of tubular body 22 and an L-shaped annular flange 40 formed on the tubular body 22 which projects outwardly from a top portion thereof.
  • the arcuate locking flange 38 and the L-shaped annular flange 40 are adapted to engage with an L-shaped annular flange and an arcuate locking flange, respectively, of another air brake hose coupling member to couple the members together when inner coupling faces of the two coupling members are placed in an abutting relationship substantially along their entire inner coupling faces and rotated with respect to each other into the locked position, as best shown in FIG. 4 .
  • one end of the arcuate locking flange 38 of one air brake hose coupling member 20 generally engages the V-shaped notch 36 of the stop 34 of the second air brake hose coupling member 20 .
  • an air brake hose locking device generally designated 50 , of the present invention.
  • such air brake hose locking device 50 comprises a housing 52 with a first attachment means 56 , preferably being a first aperture 56 , for attaching the locking device 50 to an aperture 32 of flange 30 .
  • the presently preferred material for housing 52 is metal.
  • the first aperture 56 may be round, elongated or arcuately shaped.
  • a second attachment means 58 preferably being a second aperture 58 is provided for attaching the locking device 50 to the hose support member 14 .
  • a locking member 60 is disposed within a cavity 54 of the housing 52 having an open end 55 .
  • the longitudinal axis of the cavity 54 is preferably aligned substantially parallel to the longitudinal axis 24 of the tubular body 22 .
  • the locking member 60 is adapted for reciprocal longitudinal movement in a first direction and second direction.
  • the locking member 60 which is preferably a simple pin 60 formed from a metallic material, is urged in such first direction by a compressible resilient member 62 abutting one end thereof.
  • a compressible resilient member 62 is a spring means 62 disposed coaxially with the movement of the locking member 60 .
  • such compressible resilient member 62 may be a compressible elastomer (not shown).
  • the locking device 50 may further include a grip means 66 connected to the locking pin 60 .
  • grip means 66 is a handle 66 protruding through a second end 64 of the cavity 54 and extending outwardly from such housing 52 .
  • the compressible resilient member 62 may be installed externally of the housing 52 and caged between such housing 52 and the portion of the grip means 66 or caged between the grip means 66 and the locking member 60 .
  • a liner 68 formed from a material with a low coefficient of friction may be disposed within the cavity 54 intermediate a wall thereof and the outer surface of the locking pin 60 .
  • a coating containing such material with a low coefficient of friction may be applied to one of such wall of the cavity 54 , such outer surface of the locking pin 60 and a combination thereof.
  • the locking pin 60 or the housing 52 may be formed from such material with a low coefficient of friction.
  • the air brake hose locking device 50 is installed intermediate the air brake hose coupling 20 and the hose support 14 by attaching it to the aperture 32 of the mounting flange 30 with standard mounting hardware components (not shown). It will be appreciated that the hose support 14 is reattached to the aperture 56 of the locking device 50 and is readjusted by the adjustment means 15 to maintain the air brake hose coupling 20 at a predetermined distance from the rail 18 .
  • the locking pin 60 is manually moved in a first direction for enabling placement of such pair of air brake hose coupling members 20 in an abutting relationship substantially along their entire inner coupling faces 26 and for enabling their rotation with respect to each other into a locked position as shown in FIG. 4 .
  • locking pin 60 is released and moved in a second direction by spring means 62 for preventing an uncoupling of such pair of air brake hose coupling members 20 .
  • the locking device is mounted to allow for partial rotational uncoupling of such pair of air brake hose coupling members 20 without the loss of air pressure communicated through the connected air brake hoses 10 .
  • locking pin 60 will abut the end of the arcuate locking flange 38 at the end of such partial rotational uncoupling thus preventing the complete rotational uncoupling of such pair of air brake hose coupling members 20 .
  • the locking pin 60 is manually moved in the first direction enabling the rotational uncoupling of the coupling members 20 .
  • the locking member 60 may be adapted for an arcuate movement within the housing 52 .
  • the locking member 60 may be attached to an outer surface of the housing 52 .
  • housing 52 may be formed integral to the tubular body 22 of the air brake hose coupling 20 which is advantageous in newly manufactured air brake hose coupling 20 to reduce overall installation costs.
  • the grip means 66 may be utilized for moving the locking pin 60 in a second direction and eliminating the need for the compressible resilient member 62 .
  • the locking device 50 will be adapted for positively retaining such locking member 60 at the end of the movement in the second direction.
  • either the grip means 66 or the locking member 60 may be provided with a thread portion engaging a complimentary threaded cavity 54 or provided with a movement restraining means, such as a clamp, which may be attached to the housing 52 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
US11/201,889 2004-08-26 2005-08-11 Locking device for an air brake hose coupling member Abandoned US20060043731A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US11/201,889 US20060043731A1 (en) 2004-08-26 2005-08-11 Locking device for an air brake hose coupling member
MX2007001702A MX2007001702A (es) 2004-08-26 2005-08-18 Dispositivo de trabamiento para un elemento de acoplamiento de manguera de frenos de aire.
PCT/US2005/029333 WO2006026173A1 (fr) 2004-08-26 2005-08-18 Dispositif de verrouillage pour raccord de boyau de frein
CA2576743A CA2576743C (fr) 2004-08-26 2005-08-18 Dispositif de verrouillage pour raccord de boyau de frein
US11/728,249 US7461869B2 (en) 2004-08-26 2007-03-23 Air brake hose coupling with locking device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60458004P 2004-08-26 2004-08-26
US11/201,889 US20060043731A1 (en) 2004-08-26 2005-08-11 Locking device for an air brake hose coupling member

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/728,249 Division US7461869B2 (en) 2004-08-26 2007-03-23 Air brake hose coupling with locking device

Publications (1)

Publication Number Publication Date
US20060043731A1 true US20060043731A1 (en) 2006-03-02

Family

ID=35942035

Family Applications (2)

Application Number Title Priority Date Filing Date
US11/201,889 Abandoned US20060043731A1 (en) 2004-08-26 2005-08-11 Locking device for an air brake hose coupling member
US11/728,249 Expired - Fee Related US7461869B2 (en) 2004-08-26 2007-03-23 Air brake hose coupling with locking device

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/728,249 Expired - Fee Related US7461869B2 (en) 2004-08-26 2007-03-23 Air brake hose coupling with locking device

Country Status (4)

Country Link
US (2) US20060043731A1 (fr)
CA (1) CA2576743C (fr)
MX (1) MX2007001702A (fr)
WO (1) WO2006026173A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009150471A1 (fr) * 2008-06-12 2009-12-17 Colin Anthony Morris Système de connexion de frein pneumatique
US7696862B2 (en) 2006-07-03 2010-04-13 Frank Herschell Tractor-trailer tether sensor
KR101113297B1 (ko) * 2004-07-30 2012-02-20 넥쌍 분로를 구비한 초전도 저항 전류 제한기
US20150158479A1 (en) * 2013-12-10 2015-06-11 Ireco, Llc Spring-style air brake hose support
CN107618532A (zh) * 2017-09-26 2018-01-23 眉山中车制动科技股份有限公司 一种用于铁路机车车辆自动防尘装置的锁止机构
CN113365893A (zh) * 2018-11-05 2021-09-07 阿尔法/欧米茄能源解决方案有限责任公司 用于将空气软管和相关联的接头固定在一起的空气软管接头固定装置
US20220371570A1 (en) * 2021-05-20 2022-11-24 Phillips Connect Technologies Llc Smart gladhand with wireless actuation and reporting

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8052172B1 (en) * 2010-01-29 2011-11-08 Junior Kenneth D Glad hand locking device
US9366361B2 (en) * 2014-01-14 2016-06-14 A. Stucki Co. Air hose hanger for a rail way vehicle
US10647310B2 (en) 2017-07-31 2020-05-12 Ttx Company Trainline support assembly
US11865883B2 (en) * 2019-04-29 2024-01-09 Phillips Connect Technologies, LLC System and method for securing an asset

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US3969788A (en) * 1975-07-14 1976-07-20 Mccullough Richard C Door lock hinge
US3985249A (en) * 1975-04-14 1976-10-12 International Harvester Company Quick change attachment
US4085856A (en) * 1977-01-21 1978-04-25 Westendorf Neal W Quick attach means for end loaders or the like
US4330498A (en) * 1979-04-13 1982-05-18 Dayco Corporation Pedestal liner for a railway vehicle and method of making same
US4562775A (en) * 1984-03-29 1986-01-07 Lukens General Industries, Inc. Railway vehicle with end and intermediate trucks
US4635327A (en) * 1984-08-01 1987-01-13 Netznik Frederick P Quick disconnect locking coupler
US5042854A (en) * 1989-12-19 1991-08-27 Huang Yu Hwei Latch assembly
US5388864A (en) * 1994-02-22 1995-02-14 Kozinski; Richard R. Air brake hose coupling member
US5485699A (en) * 1993-04-13 1996-01-23 Product Strategies, Inc. Hospital bed guard
US5911444A (en) * 1996-01-31 1999-06-15 The Whitaker Corporation Automatic locking mechanism for air brake hose coupling members
US6102452A (en) * 1999-06-30 2000-08-15 Liau; Wan-Lai Locking device for doors or windows
US6655720B2 (en) * 2001-10-09 2003-12-02 Edmond L. Rampen Lock with plunger unit
US6669237B1 (en) * 2002-07-26 2003-12-30 New York Air Brake Corporation Air brake hose coupling member
US6979283B2 (en) * 2004-02-27 2005-12-27 Francis Pan Locking device to lock a collapsible treadmill deck in a folded position

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US1112850A (en) * 1912-08-05 1914-10-06 Henry G Sherer Hose-coupling.
US2501639A (en) * 1948-05-11 1950-03-21 Chiksan Co Zero-moment swivel nozzle
US3892431A (en) * 1973-12-13 1975-07-01 Chesapeake & Ohio Railway Air hose anti-disconnect
US3941254A (en) * 1974-08-07 1976-03-02 Illinois Railway Equipment Company Wire form locking means for detachable air hose couplings of railway cars
US4129323A (en) * 1977-07-14 1978-12-12 Westinghouse Air Brake Company Lockable hose coupling
US4747623A (en) * 1986-10-14 1988-05-31 Newcomb Bruce D Anti-disconnect attachment for air line couplings
US5842724A (en) * 1996-12-23 1998-12-01 T. C. Johnson Company Air brake hose coupling member having an extended locking lug

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985249A (en) * 1975-04-14 1976-10-12 International Harvester Company Quick change attachment
US3969788A (en) * 1975-07-14 1976-07-20 Mccullough Richard C Door lock hinge
US4085856A (en) * 1977-01-21 1978-04-25 Westendorf Neal W Quick attach means for end loaders or the like
US4330498A (en) * 1979-04-13 1982-05-18 Dayco Corporation Pedestal liner for a railway vehicle and method of making same
US4562775A (en) * 1984-03-29 1986-01-07 Lukens General Industries, Inc. Railway vehicle with end and intermediate trucks
US4635327A (en) * 1984-08-01 1987-01-13 Netznik Frederick P Quick disconnect locking coupler
US5042854A (en) * 1989-12-19 1991-08-27 Huang Yu Hwei Latch assembly
US5485699A (en) * 1993-04-13 1996-01-23 Product Strategies, Inc. Hospital bed guard
US5388864A (en) * 1994-02-22 1995-02-14 Kozinski; Richard R. Air brake hose coupling member
US5911444A (en) * 1996-01-31 1999-06-15 The Whitaker Corporation Automatic locking mechanism for air brake hose coupling members
US6102452A (en) * 1999-06-30 2000-08-15 Liau; Wan-Lai Locking device for doors or windows
US6655720B2 (en) * 2001-10-09 2003-12-02 Edmond L. Rampen Lock with plunger unit
US6669237B1 (en) * 2002-07-26 2003-12-30 New York Air Brake Corporation Air brake hose coupling member
US6979283B2 (en) * 2004-02-27 2005-12-27 Francis Pan Locking device to lock a collapsible treadmill deck in a folded position

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101113297B1 (ko) * 2004-07-30 2012-02-20 넥쌍 분로를 구비한 초전도 저항 전류 제한기
US7696862B2 (en) 2006-07-03 2010-04-13 Frank Herschell Tractor-trailer tether sensor
WO2009150471A1 (fr) * 2008-06-12 2009-12-17 Colin Anthony Morris Système de connexion de frein pneumatique
US20110133430A1 (en) * 2008-06-12 2011-06-09 Colin Anthony Morris Air brake connection system
US20150158479A1 (en) * 2013-12-10 2015-06-11 Ireco, Llc Spring-style air brake hose support
US9366362B2 (en) * 2013-12-10 2016-06-14 Ireco, Llc Spring-style air brake hose support
CN107618532A (zh) * 2017-09-26 2018-01-23 眉山中车制动科技股份有限公司 一种用于铁路机车车辆自动防尘装置的锁止机构
CN113365893A (zh) * 2018-11-05 2021-09-07 阿尔法/欧米茄能源解决方案有限责任公司 用于将空气软管和相关联的接头固定在一起的空气软管接头固定装置
US20220371570A1 (en) * 2021-05-20 2022-11-24 Phillips Connect Technologies Llc Smart gladhand with wireless actuation and reporting
US11834014B2 (en) * 2021-05-20 2023-12-05 Phillips Connect Technologies, LLC Smart gladhand with wireless actuation and reporting

Also Published As

Publication number Publication date
US20070170718A1 (en) 2007-07-26
WO2006026173A1 (fr) 2006-03-09
US7461869B2 (en) 2008-12-09
CA2576743A1 (fr) 2006-03-09
MX2007001702A (es) 2007-04-23
CA2576743C (fr) 2012-11-13

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WABTEC HOLDING CORP, PENNSYLVANIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SOMMERFELD, HOWARD;REEL/FRAME:016888/0860

Effective date: 20050811

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION