Tire inflation system
First Claim
1. A tire inflation system for inflating a tire inner tube through a tire inflation valve comprising:
- a cartridge having an end with a seal and containing a volume of pressed gas;
a conduit having an inlet port for connection to the cartridge and an outlet port for connection to a tire inflation valve and a flow passage interconnecting said ports;
said inlet port and the end of the cartridge having connection means for connection to one another and for allowing movement of the end of the cartridge in said inlet port;
puncture means contained within the inlet port having a projection for contacting and puncturing the cartridge seal to permit the gas to enter the flow passage;
said puncture means having an outer sealing ring for contacting said sealed opening around the point of puncturing for controlling the flow of gas from said cartridge through the space between said sealing ring and said sealed opening to said flow passage; and
said puncture means having at least one outer channel for conducting the flow from said inlet port to said flow passage.
1 Assignment
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Accused Products
Abstract
The invention relates to a system for inflating tire tubes, more specifically the inflation of bicycle tire tubes either a SCHRADER or PRESTA type inflation valve. In one embodiment, a conduit having an internal gas passage threadably connects the tire tube inflation valve to a sealed cartridge containing a requisite volume of pressurized gas to inflate a mounted tire. A pointed puncture tube mounted at the inlet end of the conduit and forming a portion of the internal passage, ruptures the cartridge seal when the cartridge is connected to the conduit. The gas flow through this ruptured seal is controllable by a seal around the puncture tube that contacts the cartridge seal. Attachment means and seal elements contained within the conduit prevent loss of the pressurized gas during tube inflation. A gas-tight connection to the tube inflation valve is created by a resilient coupling member mounted at the outlet end of the conduit. The resilient coupling member is selectively adaptable for use with either a SCHRADER or PRESTA tube inflation valve.
78 Citations
8 Claims
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1. A tire inflation system for inflating a tire inner tube through a tire inflation valve comprising:
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a cartridge having an end with a seal and containing a volume of pressed gas; a conduit having an inlet port for connection to the cartridge and an outlet port for connection to a tire inflation valve and a flow passage interconnecting said ports; said inlet port and the end of the cartridge having connection means for connection to one another and for allowing movement of the end of the cartridge in said inlet port; puncture means contained within the inlet port having a projection for contacting and puncturing the cartridge seal to permit the gas to enter the flow passage; said puncture means having an outer sealing ring for contacting said sealed opening around the point of puncturing for controlling the flow of gas from said cartridge through the space between said sealing ring and said sealed opening to said flow passage; and said puncture means having at least one outer channel for conducting the flow from said inlet port to said flow passage. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A tire inflation system for inflating a tire inner tube, through a tire inflation valve comprising:
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a cartridge having a threaded end with a sealed opening and containing a volume of compressed gas; a conduit having an inlet port for connection to the cartridge and an outlet port for connection to a tire inflation valve; said inlet port having internal threads for receiving the threaded end of the cartridge having the sealed opening; puncture means contained within the inlet port having a projection for puncturing the cartridge seal to permit the gas to enter the flow passage; said puncture means having an outer sealing ring for contacting said sealed opening, around the point of puncturing, for controlling the flow of gas from said cartridge to said flow passage; said puncture means having an outer channel for conducting the flow from said inlet port to said flow passage. - View Dependent Claims (8)
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Specification