Gas separation – Combined or convertible
Reexamination Certificate
2006-07-04
2006-07-04
Greene, Jason M. (Department: 1724)
Gas separation
Combined or convertible
C055S486000, C055S498000, C055S502000, C055S512000, C055S516000, C055S527000, C055S528000, C055S499000, C096S011000, C096S108000, C096S134000, C401S208000, C401S213000, C401S241000, C401S243000, CD19S045000
Reexamination Certificate
active
07070638
ABSTRACT:
The burp filtering device has the body of a writing pen, with an intake port at the upper end of the body, a plurality of exhaust ports adjacent the writing tip, and a filter disposed within the body. The filter may be made of activated charcoal or other media for filtering eructation odors. In use, the user holds the upper end of the pen body to his lips, releases the suppressed burp, and the filtered gas is exhausted through the ports at the writing tip.
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“Purafil Chemisorbant Media For removal of toxic, odorous, and corrosive gases,” Purafil Publications Internet Website, Purafil, Inc., Doraville, GA., 2003.
Greene Jason M.
Litman Richard C.
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