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MD8C2 - Cigar filter - Google Patents

Cigar filter

Info

Publication number
MD8C2
MD8C2 MD94-0014A MD940014A MD8C2 MD 8 C2 MD8 C2 MD 8C2 MD 940014 A MD940014 A MD 940014A MD 8 C2 MD8 C2 MD 8C2
Authority
MD
Moldova
Prior art keywords
filter
holes
grooves
air
rod
Prior art date
Application number
MD94-0014A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD8B1 (en
Inventor
Charles G. Lamb
Andrrrew McMURTRIE
Original Assignee
Brown & Williamson Tobacco Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/899,590 external-priority patent/US4708150A/en
Application filed by Brown & Williamson Tobacco Corporation filed Critical Brown & Williamson Tobacco Corporation
Publication of MD8B1 publication Critical patent/MD8B1/en
Publication of MD8C2 publication Critical patent/MD8C2/en

Links

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

1. The invention relates to the cigar filter that contains a porous filter rod with a cylindrical shape, settled in an airproof cover at air, placed along the filter rod from one end to another, releasing its front ends for passing the stream of gases with a great number of longitudinal grooves implemented in the filter rod, their length being shorter than the length of the filter rod with one opened end of the packing material that covers the filter rod and the airproof cover at air and connects the filter with the tobacco rod placed along them that have above the grooves holes for air supply. It is characterized by the fact that in the zone between the grooves and the end of the filter connected with the tobacco rod a circular row of holes are done in the packing material and a cover for pumping the air into the filter that corresponds after location and size.In the zone of each groove or cover additional holes are made for pumping the air into the filter rod, the diameter of these holes being smaller then the diameter of the holes from the circular row.2. Filter according to claim 1, is characterized by the fact that the holes in the packing material in the zone of grooves are placed nearer on the closed ends of the grooves then the opened ones.3. Filter according to claim 1, is characterized by the fact that the holes in the cover made in the zone of grooves are placed nearer the opened ends than the closed ones.Drawings: 3 Drawing:2.
MD94-0014A 1986-08-25 1993-12-14 Cigar filter MD8C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/899,590 US4708150A (en) 1986-08-25 1986-08-25 Cigarette filter
SU874203258A SU1547692A3 (en) 1986-08-25 1987-08-24 Cigarette filter

Publications (2)

Publication Number Publication Date
MD8B1 MD8B1 (en) 1994-03-31
MD8C2 true MD8C2 (en) 1994-08-31

Family

ID=26666106

Family Applications (1)

Application Number Title Priority Date Filing Date
MD94-0014A MD8C2 (en) 1986-08-25 1993-12-14 Cigar filter

Country Status (3)

Country Link
LT (1) LT2009B (en)
LV (1) LV5032A3 (en)
MD (1) MD8C2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256122A (en) * 1979-04-11 1981-03-17 Brown & Williamson Tobacco Corporation Cigarette filter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256122A (en) * 1979-04-11 1981-03-17 Brown & Williamson Tobacco Corporation Cigarette filter

Also Published As

Publication number Publication date
LT2009B (en) 1993-02-15
MD8B1 (en) 1994-03-31
LV5032A3 (en) 1993-06-10

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Legal Events

Date Code Title Description
FG4A Patent for invention issued
IF99 Valid patent on 19990615

Free format text: EXPIRES: 20030213