Abstract An air-smoke homogenizing filter having longitudinal channels with a mouth end and an end opposite to the mouth end with a closed central portion adapted for abutting relationship with the end of the tobacco or the mouthpiece of a cigarette. A plurality of spaced longitudinal channels is disposed around a central axis channel and may be of a smaller cross-sectional dimension than the center axis channel. A plurality of transverse channels are provided which pass through the filter with the outward extremities thereof communicating with the ambient air and the inward extremities communicating with the central and/or the longitudinal channels, the diameter of the transverse and longitudinal channels preferably being less than that of the central channel. The homogenizing filter may be positioned at the smoke discharge end of the column of tobacco making up the cigarette and may have a conventional filter placed before or after the homogenizing filter and may be used with or without a hollow mouthpiece. The filter may be integrally made or made up of interfiltering constituent elements. Likewise the filter can be positioned in a cigarette holder.
Inventors
👤 Alfred Andreas
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-06 15:19
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/04; A24D3/043
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
37 words
A filter according to claim 1 wherein some of said transverse passageways connect directly with said center axial passageway and other transverse passageways connect the ambient air with said passageways extending parallel to said center axial passageway.
Claim 2
Dependent Claim
32 words
A filter according to claim 1 wherein said longitudinal surrounding passageways are individual channels and said central axial passageway is an individual passageway of larger cross section than said individual surrounding passageways.
Claim 3
Dependent Claim
21 words
A filter according to claim 1 wherein said center axial passageway has a cross-sectional diameter ranging between 0.0410 and 0.0595 inches.
Claim 4
Dependent Claim
20 words
A filter according to claim 1 wherein said surrounding passageways have a cross-sectional diameter ranging between 0.0380 and 0.0420 inches.
Claim 5
Dependent Claim
20 words
A filter according to claim 1 wherein said transverse passageways have a cross-sectional diameter ranging between 0.0380 and 0.0420 inches.
Claim 6
Dependent Claim
42 words
A filter according to claim 1 wherein said center axial passageway has a cross-sectional diameter of approximately 0.0420 inches, the longitudinal passageways having a cross-sectional diameter of approximately 0.025 inches, and the transverse passageways having a cross-sectional diameter of approximately 0.040 inches.
Claim 7
Dependent Claim
12 words
A filter according to claim 1 in combination with a cigarette holder.
Claim 8
Dependent Claim
92 words
A filter according to claim 1 consisting of a first outer tube, a second intermediate tube in said outer tube having radial grooves on the outer periphery thereof defining some of said longitudinal passageways in conjunction with said outer tube, said second tube having also internal grooves, a central tube closed at one end fitting in said second tube, the outer periphery of said central tube defining the other of said longitudinal passageways in conjunction with said internal grooves, said central tube having an end thereof closed to form said impervious obstruction.