GB473979A - Improvements in or relating to germicidal filters - Google Patents

Improvements in or relating to germicidal filters

Info

Publication number
GB473979A
GB473979A GB1159336A GB1159336A GB473979A GB 473979 A GB473979 A GB 473979A GB 1159336 A GB1159336 A GB 1159336A GB 1159336 A GB1159336 A GB 1159336A GB 473979 A GB473979 A GB 473979A
Authority
GB
United Kingdom
Prior art keywords
metal
layers
charcoal
clay
deposited
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
GB1159336A
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.)
JOSEPH PETER WELKER
Original Assignee
JOSEPH PETER WELKER
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 JOSEPH PETER WELKER filed Critical JOSEPH PETER WELKER
Priority to GB1159336A priority Critical patent/GB473979A/en
Publication of GB473979A publication Critical patent/GB473979A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2055—Carbonaceous material
    • B01D39/2058—Carbonaceous material the material being particulate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/10—Filter screens essentially made of metal
    • B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2027—Metallic material
    • B01D39/2031—Metallic material the material being particulate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B01D2239/0478—Surface coating material on a layer of the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filtering Materials (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

473,979. Sterilizing liquids; filters. WELKER, J. P. April 23, 1936, No. 11593. [Class 46] [Also in Group VI] A sterilizing-metal is deposited within the foremost layers of a filtering element of clay, infusorial earth, charcoal, &c., the other layers being free from metal. The metals may be used alone, in alloys or amalgamated with mercury. The surface of the element may be covered with the metal. Fig. 2 shows a hollow element of infusorial earth and charcoal to which clay has been added as cement. The element is surrounded by one or more layers 3 of wire netting made of active metal. Active metal is also deposited on the surface of the element by electroplating. The outer layer 4 is impregnated with active metal which may be incorporated therein during manufacture either as powdered metal or as a salt, which is reduced during burning of the element or by treatment with a reducing element such as hydrochinone. Or the layer 4 may be treated with a solution of metallic salt after manufacture. The inner layer 5 of the filtering element is free from metal. As shown in Fig. 1, the element is arranged to close the mouth of a bottle or rubber bag which contains the liquid to be treated. The element when not in use may be protected by a metal tube which will serve as a drinking cup.
GB1159336A 1936-04-23 1936-04-23 Improvements in or relating to germicidal filters Expired GB473979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1159336A GB473979A (en) 1936-04-23 1936-04-23 Improvements in or relating to germicidal filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1159336A GB473979A (en) 1936-04-23 1936-04-23 Improvements in or relating to germicidal filters

Publications (1)

Publication Number Publication Date
GB473979A true GB473979A (en) 1937-10-25

Family

ID=9989094

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1159336A Expired GB473979A (en) 1936-04-23 1936-04-23 Improvements in or relating to germicidal filters

Country Status (1)

Country Link
GB (1) GB473979A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3372808A (en) * 1966-06-09 1968-03-12 Joseph F. Sabo Apparatus for removing radioactive materials from water
US4851163A (en) * 1988-11-04 1989-07-25 The Refraction Corporation Biofouling resistant apparatus for wastewater treatment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3372808A (en) * 1966-06-09 1968-03-12 Joseph F. Sabo Apparatus for removing radioactive materials from water
US4851163A (en) * 1988-11-04 1989-07-25 The Refraction Corporation Biofouling resistant apparatus for wastewater treatment

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