Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
Vehicle air brake system including an air compressor for compressing air, a storage reservoir communicated with the air compressor for storing air compressed by the air compressor, a governor communicated with the reservoir for generating a governing pressure signal to unload said compressor when the pressure level in the storage, reservoir attains a predetermined level, and means for communicating said air brake system to an auxiliary air supply located off of said vehicle to maintain pressure in said storage reservoir when the vehicle is parked, said communicating means including a releasable coupling for connecting with said auxiliary air supply, and control valve means for controlling communication between said coupling and said reservoir and having a supply port communicated with said coupling, a delivery port communicating with said storage reservoir, and a control port communicated with said governing pressure signal to control communication between the supply and delivery ports in response to said governing pressure signal.
Claim 2
Dependent Claim
155 words
Vehicle air brake system including an air compressor for compressing air, a storage reservoir communicated with the air compressor for storing air compressed by the air compressor, a governor communicated with the reservoir for generating a governing pressure signal to unload said compressor when the pressure level in the storage, reservoir attains a predetermined level, and means for communicating said air brake system to an auxiliary air supply located off of said vehicle to maintain pressure in said storage reservoir when the vehicle is parked, said communicating means including a releasable coupling for connecting with said auxiliary air supply, and control valve means for controlling communication between said coupling and said reservoir and having a supply port communicated with said coupling, a delivery port communicating with said storage reservoir, and a control port communicated with said governing pressure signal to control communication between the supply and delivery ports in response to said governing pressure signal.
Claim 3
Dependent Claim
67 words
Vehicle air brake system as claimed in claim 1, wherein said control valve means communicates the supply with the delivery port when the governing pressure signal is not present at said control port, but responds to said governing pressure system to close communication between the supply and delivery ports and venting the delivery port to ambient atmosphere when a pressure signal is present at said control port.
Claim 4
Dependent Claim
47 words
Vehicle air brake system as claimed in claim 2, wherein said air brake system includes an air dryer for cleaning and drying the compressed air, said air dryer including a supply port communicated with both said air compressor and the delivery port of said control valve means.
Claim 5
Dependent Claim
71 words
Vehicle air brake system as claimed in claim 3, wherein said air dryer includes a housing, a desiccant material within said housing through which said compressed air is communicated, a purge volume for storing a quantity of compressed air, a control port connected to said governing pressure signal for causing said air in said purge volume to flow through said desiccant material, and a delivery port communicated with said storage reservoir.
Claim 6
Dependent Claim
66 words
Vehicle air brake system as claimed in claim 4, wherein said communicating means includes a one-way check valve located between the delivery port of the control valve means and the supply port of the air dryer, said one-way check valve permitting communication from the delivery port of the control valve means to the supply port of the air dryer, but preventing communication in the reverse direction.
Claim 7
Dependent Claim
48 words
Vehicle air brake system as claimed in claim 2, wherein said communicating means includes a one-way check valve controlling communication through the delivery port of said control valve means to permit communication from the delivery port of the control valve means but to prevent communication into the latter.
Claim 8
Dependent Claim
31 words
Vehicle air brake system as claimed in claim 2, wherein said communicating means includes one-way check valve means preventing communication into said delivery port, but permitting communication in the reverse direction.
Claim 9
Dependent Claim
66 words
Vehicle air brake system as claimed in claim 3, wherein said communicating means includes a one-way check valve located between the delivery port of the control valve means and the supply port of the air dryer, said one-way check valve permitting communication from the delivery port of the control valve means to the supply port of the air dryer, but preventing communication in the reverse direction.