GB1251880A - - Google Patents

Info

Publication number
GB1251880A
GB1251880A GB1251880DA GB1251880A GB 1251880 A GB1251880 A GB 1251880A GB 1251880D A GB1251880D A GB 1251880DA GB 1251880 A GB1251880 A GB 1251880A
Authority
GB
United Kingdom
Prior art keywords
grille
clutch
motor
vanes
oct
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
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
Family has litigation
Priority to AU4538468A priority Critical patent/AU459701B2/xx
Application filed filed Critical
Publication of GB1251880A publication Critical patent/GB1251880A/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3732544&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB1251880(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application status is Expired legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/10Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air

Abstract

1,251,880. Centrifugal and axial-flow fans. KEMPTHORNE MISTRAL MFG PTY Ltd. Oct. 24, 1969 [Oct.25, 1968], No. 52315/69. Heading F1C. A centrifugal or, as shown, an axial-flow fan F driven by an electric motor M discharges air through flow straightening vanes 11 and a circular grille 17 which can be rotated by the motor through a reduction gear-box G and a clutch. The clutch comprises three leaf-springs 22 which when located as shown in notches in a ring 16 fixed to shaft O, cause the grille to be rotated. The clutch merely slips if the grille is restrained against rotation. Disengagement of the clutch is achieved by axially moving the grille towards the motor so that the ends 23 of the leaf-springs ride up over an adjacent part of the motor casing. The grille may comprise three groups of parallel louvres 20 with the louvres of the respective groups arranged at 0, 15 and 30 degrees to the direction of the airflow leaving the vanes 11. The grille, vanes 11, fan casing 1 and inlet cage 5 are all of plastics material.
GB1251880D 1968-10-25 1969-10-24 Expired GB1251880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU4538468A AU459701B2 (en) 1968-10-25 1968-10-25

Publications (1)

Publication Number Publication Date
GB1251880A true GB1251880A (en) 1971-11-03

Family

ID=3732544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251880D Expired GB1251880A (en) 1968-10-25 1969-10-24

Country Status (4)

Country Link
AU (1) AU459701B2 (en)
BE (1) BE817736A (en)
GB (1) GB1251880A (en)
MY (1) MY7400277A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561416A (en) * 1983-04-13 1985-12-31 The Associates Group Partners Self-contained portable oven air circulator
US4642441A (en) * 1981-08-17 1987-02-10 Allware Agencies Limited Portable fan for winter and summer use
US4884314A (en) * 1987-11-12 1989-12-05 Black & Decker Inc. Portable blower
EP3273173A1 (en) * 2004-03-15 2018-01-24 Airius IP Holdings, LLC Columnar air moving devices, systems and methods
US10024531B2 (en) 2013-12-19 2018-07-17 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US10184489B2 (en) 2011-06-15 2019-01-22 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US10221861B2 (en) 2014-06-06 2019-03-05 Airius Ip Holdings Llc Columnar air moving devices, systems and methods
US10487852B2 (en) 2016-06-24 2019-11-26 Airius Ip Holdings, Llc Air moving device
US10487840B2 (en) 2004-03-15 2019-11-26 Airius Ip Holdings, Llc Temperature destratification systems

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120615A (en) * 1977-02-04 1978-10-17 Allware Agencies Limited Box fans
US4123197A (en) * 1977-02-04 1978-10-31 Allware Agencies Limited Fan with air directing grille
US4142844A (en) * 1977-05-31 1979-03-06 Allware Agencies Ltd. Fan blade assemblies for box fans
US4189284A (en) * 1978-01-26 1980-02-19 Zardana Corporation N.V. Slipping clutch mechanism
US4350472A (en) * 1978-11-14 1982-09-21 Sanyo Electric Co., Ltd. Electric fan apparatus
US4548548A (en) * 1984-05-23 1985-10-22 Airflow Research And Manufacturing Corp. Fan and housing

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642441A (en) * 1981-08-17 1987-02-10 Allware Agencies Limited Portable fan for winter and summer use
US4561416A (en) * 1983-04-13 1985-12-31 The Associates Group Partners Self-contained portable oven air circulator
US4884314A (en) * 1987-11-12 1989-12-05 Black & Decker Inc. Portable blower
EP3273173A1 (en) * 2004-03-15 2018-01-24 Airius IP Holdings, LLC Columnar air moving devices, systems and methods
US10487840B2 (en) 2004-03-15 2019-11-26 Airius Ip Holdings, Llc Temperature destratification systems
US10184489B2 (en) 2011-06-15 2019-01-22 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US10024531B2 (en) 2013-12-19 2018-07-17 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US10221861B2 (en) 2014-06-06 2019-03-05 Airius Ip Holdings Llc Columnar air moving devices, systems and methods
US10487852B2 (en) 2016-06-24 2019-11-26 Airius Ip Holdings, Llc Air moving device

Also Published As

Publication number Publication date
MY7400277A (en) 1974-12-31
AU4538468A (en) 1971-04-22
BE817736A1 (en)
BE817736A (en) 1974-11-18
AU459701B2 (en) 1975-03-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years