Fuel cartridge for fuel cells

Title: Fuel cartridge for fuel cells

Related Patent Categories: Dispensing, With Wick Or Absorbent Material Feed

Brief Patent Description - Full Patent Description - Patent Claims

The Patent Description & Claims data below is from USPTO Patent Application 20070095860, Fuel cartridge for fuel cells.

1-76. (canceled)

77. A fuel cartridge containing fuel suitable for use with a fuel cell comprising a plurality of chambers, wherein each chamber has a predetermined concentration of fuel and wherein each chamber comprises a filler insert made from an absorbent material capable of wicking fuel contained within the chamber by capillary action, and wherein the filler insert is substantially in contact with the fuel at any orientation of the chamber and at any fuel level.

78. The fuel cartridge of claim 77, wherein the concentrations of fuel in the chambers are different from each other.

79. The fuel cartridge of claim 78, wherein the concentration of fuel range from about 100% fuel and 0% water to about 0% fuel and 100% water.

80. The fuel cartridge of claim 77, wherein the chambers are either arranged side-by-side, or end-to-end.

81. (canceled)

82. The fuel cartridge of claim 77, wherein at least one chamber comprises a first free space portion and a second space portion, wherein the filler insert occupies the second space portion.

83-85. (canceled)

86. The fuel cartridge of claim 77, wherein each chamber comprises an outlet port.

87. The fuel cartridge of claim 82, wherein the filler insert of said at least one chamber comprises a connecting column and at least two disks.

88. The fuel cartridge of claim 82, wherein the filler insert of said at least one chamber comprises a shell covering at least a portion of the inner surface of the cartridge.

89. The fuel cartridge of claim 82, wherein the filler insert of said at least one chamber comprises a connecting column and a plurality of spokes, and optionally comprises a plurality of rings wherein the spokes connect the connecting column to the rings.

90. (canceled)

91. The fuel cartridge of claim 77, wherein the absorbent material is made from either polymeric fibers or plant-based fibers.

92. (canceled)

93. The fuel cartridge of claim 77 further comprising at least one air vent.

94. The fuel cartridge of claim 77 further comprising at least one refillable valve.

95. The fuel cartridge of claim 77, wherein the fuel cartridge is connectable to a microelectromechanical pump to control the flow of fuel.

96. The fuel cartridge of claim 95, wherein the fuel in at least one chamber is pumped out of the chamber by the microelectromechanical pump.

97. The fuel cartridge of claim 96, wherein the fuel in each chamber is pumped at a different rate.

98. The fuel cartridge of claim 96, wherein the fuels from the chambers are mixed after being pumped from the chambers.

99. The fuel cartridge of claim 95, wherein the microelectromechanical pump is a field-induced pump.

100. The fuel cartridge of claim 99, wherein the microelectromechanical pump comprises an electrical field applied to the fuel to pump the fuel.

101. The fuel cartridge of claim 95, wherein the microelectromechanical pump comprises an electrohydrodynamic pump and an electro-osmotic pump

102. The fuel cartridge of claim 95, wherein the microelectromechanical pump is an electro-osmotic pump.

103. The fuel cartridge of claim 95, wherein the microelectromechanical pump is a membrane-displacement pump.

104. The fuel cartridge of claim 77, wherein the fuel cartridge is connectable to a pump to control the flow of fuel.

105. The fuel cartridge of claim 77, wherein at least a portion of one filler insert is covered by a fluid impermeable film.

106-110. (canceled)

111. The fuel cartridge of claim 77 further comprising at least one shut-off valve.

112. The fuel cartridge of claim 82 wherein the at least one chamber comprises a shut-off valve.

113. (canceled)

Brief Patent Description - Full Patent Description - Patent Claims

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