[특허]Security air brake locking system

Farnum, Gordon

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Security air brake locking system

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60T-007/20 B60T-013/26
출원번호	US-0439313 (2012-04-04)
등록번호	US-9108605 (2015-08-18)
발명자 / 주소	Farnum, Gordon Rogers, Brent
출원인 / 주소	Farnum, Gordon
대리인 / 주소	Montgomery, Robert C.
인용정보	피인용 횟수 : 0 인용 특허 : 11

초록
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An air brake security locking system retains semi-trailers in a fixed position to prevent theft and is connected to an air brake line of the semi-trailer. The system includes a battery-powered valve which isolates air lines within the braking system at a low-pressure condition, thereby maintaining continuous braking of the wheels. The system includes a locked control box to secure and protect a user interface used to activate the system by entry of a numeric code using a keypad or by using a bypass key lock. A wireless remote actuation device is also utilized to activate the system from a distance. In a deactivated state, the system allows the braking system of the semi-trailer operates as normal. In an activated state, the system securely applies the spring brake units of the semi-trailer preventing movement and possible theft.

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1. A security air brake locking system comprising: a valve in fluid communication between a spring brake valve of a semi-trailer and a supply of compressed air, said valve comprising a valve body and a solenoid manual valve actuation switch, comprising: a first pneumatic fitting at a valve outlet for pneumatic connection to said spring brake valve;a second pneumatic fitting at a valve inlet for pneumatic connection to said supply of compressed air; and,an electromechanical valve;a decoy handle rigidly affixed to said valve body over top of said solenoid switch and concealing said solenoid manual valve actuation switch to prevent access thereto and actuation thereof;a control circuit in electrical communication with said valve for selectably actuating said valve between an open position and a closed position; and,a battery in electrical communication with said control circuit and said valve for supplying a power source;wherein a plurality of spring brake units of said semi-trailer is disengaged in response to a high pressure condition and is engaged in response to a low pressure condition;wherein said valve selectively restricts a flow of compressed air from said supply of compressed air to said spring brake valve for maintaining said low pressure condition. 2. The system of claim 1, further comprising: a pair of rigid L-shaped brackets connected to said trailer; anda battery box connected to said brackets for securing said battery. 3. The system of claim 1, further comprising a lockable control box mountable to said frame of said semi-trailer for housing said control circuit. 4. The system of claim 3, wherein said control box further comprises: an enclosure having an hollow interior for housing electrical components of said control circuit;a door hingedly attached to said enclosure; and,a key operated latch for locking said door in a shut position covering said control circuit. 5. The system of claim 4, wherein said control box further comprises a gasket disposed around an interior perimeter of said door for providing a water resistance seal between said door and said enclosure when in said shut position. 6. The system of claim 1, wherein said control circuit further comprises a user interface for selectably controlling electrical actuation of said valve between said open position and said closed position. 7. The system of claim 6, wherein said user interface further comprises: a keypad for actuating said valve in response to entering a personal identification number;a key-operated bypass lock for actuating said valve in response to turning of a key; and,a digital display for visually displaying an actuation position of said valve. 8. The system of claim 6, wherein said control circuit further comprises a wireless receiver for receiving a wireless signal transmitted from a remote actuation device for actuating said valve in response to said wireless signal. 9. The system of claim 1, wherein said battery is rechargeable when in electrical connection with a direct current power supply. 10. The system of claim 1, further comprising a plurality of lengths of durable conduit for protecting wiring electrically interconnected between said battery and said control circuit and said valve. 11. A security air brake locking system comprising: a solenoid valve pneumatically interconnected between a spring brake valve of a semi-trailer and a supply of compressed air, said solenoid valve comprising a valve body and a solenoid manual actuation switch;a decoy handle rigidly affixed to said valve body of said solenoid valve over top of and concealing said solenoid manual actuation switch to prevent access to and actuation of said solenoid manual actuation switch;a control circuit in electrical communication with said solenoid valve for selectably actuating said valve between an open position and a closed position;a user interface in electrical communication with said control circuit for providing an open signal for actuating said solenoid valve to said open position and a close signal for actuating said solenoid valve to said closed position;a battery in electrical communication with said control circuit and said solenoid valve for supplying a power source;a lockable control box mountable to a frame of said semi-trailer for housing said control circuit and said user interface; and,a plurality of lengths of durable conduit for protecting wiring electrically interconnected between said battery and said control circuit and said valve;wherein a spring brake unit of said semi-trailer is disengaged in response to a high pressure condition and is engaged in response to a low pressure condition;wherein said solenoid valve selectively restricts a flow of compressed air from said supply of compressed air to said spring brake valve for maintaining said low pressure condition. 12. The system of claim 11, wherein said user interface further comprises: a keypad for actuating said solenoid valve in response to entering a personal identification number; and,a digital display for visually displaying an actuation position of said solenoid valve. 13. The system of claim 12, wherein said user interface further comprises a key-operated bypass lock for actuating said solenoid valve in response to turning of a key. 14. The system of claim 13, wherein said control circuit further comprises a wireless receiver for receiving a wireless signal transmitted from a remote actuation device for actuating said solenoid valve in response to said wireless signal.

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Security air brake locking system

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Security air brake locking system

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