EP1842642A3 - Cover - Google Patents

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Publication number
EP1842642A3
EP1842642A3 EP07251436A EP07251436A EP1842642A3 EP 1842642 A3 EP1842642 A3 EP 1842642A3 EP 07251436 A EP07251436 A EP 07251436A EP 07251436 A EP07251436 A EP 07251436A EP 1842642 A3 EP1842642 A3 EP 1842642A3
Authority
EP
European Patent Office
Prior art keywords
man
cover
access way
closure
drum
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.)
Withdrawn
Application number
EP07251436A
Other languages
German (de)
French (fr)
Other versions
EP1842642A2 (en
Inventor
Nick c/o Hymix Limited Humpish
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.)
Hymix Ltd
Original Assignee
Hymix 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 Hymix Ltd filed Critical Hymix Ltd
Publication of EP1842642A2 publication Critical patent/EP1842642A2/en
Publication of EP1842642A3 publication Critical patent/EP1842642A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4203—Details; Accessories
    • B28C5/4262—Closures; Sealing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/10—Manholes; Inspection openings; Covers therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

Concrete mixer vehicles (100) having a recessed man-access way (114) in mixer drums are known. Preferably such man-access ways (114) have a closure (118) within the profile of the drum (102). A continuing problem in that the closure (118) may still be a safety hazard as the drum (102) rotates.
A cover (124) for such a man-access way (114) is disclosed. The cover (124) may be made of a plastics, a composite or a metal. It may have engagement means (142,144;128) cooperating with corresponding portions on the man-access way or may be secured by the inherent resilience of the material. A handle (126) may be provided and may be removable.
EP07251436A 2006-04-07 2007-03-30 Cover Withdrawn EP1842642A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0606980.1A GB0606980D0 (en) 2006-04-07 2006-04-07 Cover

Publications (2)

Publication Number Publication Date
EP1842642A2 EP1842642A2 (en) 2007-10-10
EP1842642A3 true EP1842642A3 (en) 2008-05-21

Family

ID=36539487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07251436A Withdrawn EP1842642A3 (en) 2006-04-07 2007-03-30 Cover

Country Status (2)

Country Link
EP (1) EP1842642A3 (en)
GB (2) GB0606980D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202412463U (en) * 2011-12-23 2012-09-05 三一重工股份有限公司 Material sealing door and concrete mixer
GB2503218B (en) 2012-06-19 2014-07-30 Brinsley Mcfarlane Improved manhole cover for mixer drum

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264180A (en) * 1940-02-24 1941-11-25 Abbott Ball Co Tumbling barrel
US2270628A (en) * 1941-04-02 1942-01-20 James H Fitzgerald Concrete mixer
US2659514A (en) * 1950-05-31 1953-11-17 Worthington Corp Charging door for transit concrete mixers
JPH0952225A (en) * 1995-08-11 1997-02-25 Sogo Concrete Service:Kk Inner inspection port for sealed mixer and mixer drum using the same
GB2392113A (en) * 2002-07-30 2004-02-25 Hymix Ltd A latched cover for a concrete mixer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB631643A (en) * 1946-10-29 1949-11-07 Letourneau Inc Cement mixer
FR2393513A7 (en) * 1977-06-02 1978-12-29 Boucheron & Soilly Manhole cover locking bar - has latch on cover rim released by pressing locking bar mounted between rim lugs
GB0303301D0 (en) * 2003-02-13 2003-03-19 Mcphee Bros Blantyre Ltd Concrete mixer, drum and manhole cover

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264180A (en) * 1940-02-24 1941-11-25 Abbott Ball Co Tumbling barrel
US2270628A (en) * 1941-04-02 1942-01-20 James H Fitzgerald Concrete mixer
US2659514A (en) * 1950-05-31 1953-11-17 Worthington Corp Charging door for transit concrete mixers
JPH0952225A (en) * 1995-08-11 1997-02-25 Sogo Concrete Service:Kk Inner inspection port for sealed mixer and mixer drum using the same
GB2392113A (en) * 2002-07-30 2004-02-25 Hymix Ltd A latched cover for a concrete mixer

Also Published As

Publication number Publication date
EP1842642A2 (en) 2007-10-10
GB2436807A (en) 2007-10-10
GB0606980D0 (en) 2006-05-17
GB0706251D0 (en) 2007-05-09

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