GB1163349A - Improvements relating to Tobacco-Smoke Filters - Google Patents

Improvements relating to Tobacco-Smoke Filters

Info

Publication number
GB1163349A
GB1163349A GB36520/67A GB3652067A GB1163349A GB 1163349 A GB1163349 A GB 1163349A GB 36520/67 A GB36520/67 A GB 36520/67A GB 3652067 A GB3652067 A GB 3652067A GB 1163349 A GB1163349 A GB 1163349A
Authority
GB
United Kingdom
Prior art keywords
tobacco
zinc
aug
powder produced
smoke filters
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB36520/67A
Inventor
Thomas William Charles Tolman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British American Tobacco Investments Ltd
Original Assignee
British American Tobacco Co Ltd
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
Application filed by British American Tobacco Co Ltd filed Critical British American Tobacco Co Ltd
Priority to GB36520/67A priority Critical patent/GB1163349A/en
Priority to US750656A priority patent/US3560697A/en
Priority to DE19681792226 priority patent/DE1792226A1/en
Publication of GB1163349A publication Critical patent/GB1163349A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials

Abstract

1,163,349. Tobacco-smoke filters. BRITISH-AMERICAN TOBACCO CO. Ltd. 2 Aug., 1968 [9 Aug., 1967], No. 36520/67. Heading A2C. [Also in Division C7] The filtration properties of fibrous, filamentary or sheet tobacco-smoke filtering material with respect to hydrogen sulphide and hydrogen cyanide are improved by treating the material with a finely divided zinc-containing powder produced by a high-energy comminution process carried out under water. Creped paper and a cellulose acetate tow are each sprayed with an aqueous suspension of a zinc powder produced by electric-spark erosion between two zinc electrodes submerged in water, dried and converted into filter rods.
GB36520/67A 1967-08-09 1967-08-09 Improvements relating to Tobacco-Smoke Filters Expired GB1163349A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB36520/67A GB1163349A (en) 1967-08-09 1967-08-09 Improvements relating to Tobacco-Smoke Filters
US750656A US3560697A (en) 1967-08-09 1968-08-06 Adding spark-comminuted zinc to tobacco-smoke filters
DE19681792226 DE1792226A1 (en) 1967-08-09 1968-08-07 Process for the treatment of filter material for tobacco smoke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36520/67A GB1163349A (en) 1967-08-09 1967-08-09 Improvements relating to Tobacco-Smoke Filters

Publications (1)

Publication Number Publication Date
GB1163349A true GB1163349A (en) 1969-09-04

Family

ID=10388907

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36520/67A Expired GB1163349A (en) 1967-08-09 1967-08-09 Improvements relating to Tobacco-Smoke Filters

Country Status (3)

Country Link
US (1) US3560697A (en)
DE (1) DE1792226A1 (en)
GB (1) GB1163349A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005020723A1 (en) * 2003-09-03 2005-03-10 Resys Ab Tobacco smoke filter
CN101147624B (en) * 2007-10-13 2010-09-15 程志强 Cigar shape water filtering smoking net

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR505978A (en) * 1919-04-08 1920-08-11 Eugene Van De Voorde Smoking pipe refinements

Also Published As

Publication number Publication date
DE1792226A1 (en) 1971-11-04
US3560697A (en) 1971-02-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee