FR839433A - Improvements to vacuum cleaning devices - Google Patents

Improvements to vacuum cleaning devices

Info

Publication number: FR839433A
Authority: FR; France
Prior art keywords: cleaning devices; vacuum cleaning; vacuum; devices; cleaning
Prior art date: 1937-05-06
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

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.)

Hoover S A Ets

Original Assignee

Hoover S A 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.)

1937-05-06

Filing date

1938-05-04

Publication date

1939-04-04

1938-05-04 Application filed by Hoover S A Ets filed Critical Hoover S A Ets

1939-04-04 Application granted granted Critical

1939-04-04 Publication of FR839433A publication Critical patent/FR839433A/en

Status Expired legal-status Critical Current

Classifications

- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
- A47L9/0466—Rotating tools
- A47L9/0477—Rolls

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Nozzles For Electric Vacuum Cleaners (AREA)

FR839433D 1937-05-06 1938-05-04 Improvements to vacuum cleaning devices Expired FR839433A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US141088A US2271545A (en)	1937-05-06	1937-05-06	Suction cleaner

Publications (1)

Publication Number	Publication Date
FR839433A true FR839433A (en)	1939-04-04

Family

ID=22494108

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR839433D Expired FR839433A (en)	1937-05-06	1938-05-04	Improvements to vacuum cleaning devices

Country Status (4)

Country	Link
US (1)	US2271545A (en)
DE (1)	DE697917C (en)
FR (1)	FR839433A (en)
GB (1)	GB513088A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2533169A (en) *	1949-01-22	1950-12-05	Scott & Fetzer Co	Rotary vacuum cleaner brush
US3225374A (en) *	1963-08-26	1965-12-28	Singer Co	Beater-brush roller for vacuum cleaner
GB1349939A (en) *	1970-12-10	1974-04-10	Dendix Brushes Ltd	Device for removing snow
DE19728380C1 (en) *	1997-07-03	1999-01-14	Kaercher Gmbh & Co Alfred	Brush roller for cleaning unit with helix bristle strip running along roller periphery
US6574823B1 (en)	2001-02-12	2003-06-10	The Scott Fetzer Company	Brushroll
US6760952B1 (en)	2003-06-20	2004-07-13	The Scott Fetzer Company	Vacuum cleaner brushroll

1937
- 1937-05-06 US US141088A patent/US2271545A/en not_active Expired - Lifetime
1938
- 1938-03-31 GB GB9839/38A patent/GB513088A/en not_active Expired
- 1938-04-01 DE DE1938H0155338 patent/DE697917C/en not_active Expired
- 1938-05-04 FR FR839433D patent/FR839433A/en not_active Expired

Also Published As

Publication number	Publication date
GB513088A (en)	1939-10-03
DE697917C (en)	1940-10-26
US2271545A (en)	1942-02-03

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