FR808797A - Perfectionnements aux pulvérisateurs à dos à pression d'air - Google Patents

Perfectionnements aux pulvérisateurs à dos à pression d'air

Info

Publication number
FR808797A
FR808797A FR808797DA FR808797A FR 808797 A FR808797 A FR 808797A FR 808797D A FR808797D A FR 808797DA FR 808797 A FR808797 A FR 808797A
Authority
FR
France
Prior art keywords
enhancements
air pressure
backpack sprayer
backpack
sprayer
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
Other languages
English (en)
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.)
P PERRAS ETS
Original Assignee
P PERRAS ETS
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 P PERRAS ETS filed Critical P PERRAS ETS
Application granted granted Critical
Publication of FR808797A publication Critical patent/FR808797A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/18—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the effective cross-section of the working surface of the piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR808797D 1935-11-05 1935-11-05 Perfectionnements aux pulvérisateurs à dos à pression d'air Expired FR808797A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR808797T 1935-11-05

Publications (1)

Publication Number Publication Date
FR808797A true FR808797A (fr) 1937-02-15

Family

ID=9253161

Family Applications (1)

Application Number Title Priority Date Filing Date
FR808797D Expired FR808797A (fr) 1935-11-05 1935-11-05 Perfectionnements aux pulvérisateurs à dos à pression d'air

Country Status (1)

Country Link
FR (1) FR808797A (fr)

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