MD7C2 - Cigar filter - Google Patents

Cigar filter

Info

Publication number
MD7C2
MD7C2 MD94-0011A MD940011A MD7C2 MD 7 C2 MD7 C2 MD 7C2 MD 940011 A MD940011 A MD 940011A MD 7 C2 MD7 C2 MD 7C2
Authority
MD
Moldova
Prior art keywords
grooves
filter
section
cigar
cover
Prior art date
Application number
MD94-0011A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD7B1 (en
Inventor
Robert R. Johnson
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 US06/243,168 external-priority patent/US4365641A/en
Application filed by Brown & Williamson Tobacco Corporation filed Critical Brown & Williamson Tobacco Corporation
Publication of MD7B1 publication Critical patent/MD7B1/en
Publication of MD7C2 publication Critical patent/MD7C2/en

Links

Landscapes

  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The invention relates to the cigar filter contains a porous stopper settled in an impermeable cover for smoke with longitudinal grooves with semicircle section and opened from one side that is placed symmetrical on its surface. It is characterized by the fact that the grooves on the surface of the cover are situated in such a way that their open section are placed at the end of the filter oriented to the smoker mouth, the surface of the transversal section of the grooves being of 0,12-1% from the total surface of the transversal section of the filter and the number of the grooves are from 3 to 7.Drawings: 3, Drawing 1.
MD94-0011A 1981-03-12 1993-12-08 Cigar filter MD7C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/243,168 US4365641A (en) 1979-04-11 1981-03-12 Cigarette filter
SU823411652A SU1145909A3 (en) 1981-03-12 1982-03-11 Cigarette filter

Publications (2)

Publication Number Publication Date
MD7B1 MD7B1 (en) 1994-03-31
MD7C2 true MD7C2 (en) 1994-08-31

Family

ID=26665933

Family Applications (1)

Application Number Title Priority Date Filing Date
MD94-0011A MD7C2 (en) 1981-03-12 1993-12-08 Cigar filter

Country Status (3)

Country Link
LT (1) LT2011B (en)
LV (1) LV5033A3 (en)
MD (1) MD7C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD470Z (en) * 2010-09-10 2012-08-31 Общественное Учреждение Научно-Практический Институт Садоводства И Пищевых Технологий Distillation plant for the production of crude alcohol, wine distillate and rectified ethyl alcohol

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773883A (en) * 1970-07-17 1973-11-20 Molins Ltd Preparing cigarette filters
US3910288A (en) * 1973-02-27 1975-10-07 Brown & Williamson Tobacco Corp Programmed filter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773883A (en) * 1970-07-17 1973-11-20 Molins Ltd Preparing cigarette filters
US3910288A (en) * 1973-02-27 1975-10-07 Brown & Williamson Tobacco Corp Programmed filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD470Z (en) * 2010-09-10 2012-08-31 Общественное Учреждение Научно-Практический Институт Садоводства И Пищевых Технологий Distillation plant for the production of crude alcohol, wine distillate and rectified ethyl alcohol

Also Published As

Publication number Publication date
LV5033A3 (en) 1993-06-10
MD7B1 (en) 1994-03-31
LT2011B (en) 1993-02-15

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Legal Events

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

Free format text: EXPIRES: 20020310