US3540070B1 - - Google Patents

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Publication number
US3540070B1
US3540070B1 US3540070DA US3540070B1 US 3540070 B1 US3540070 B1 US 3540070B1 US 3540070D A US3540070D A US 3540070DA US 3540070 B1 US3540070 B1 US 3540070B1
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US
United States
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 - Lifetime
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English (en)
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.)
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24894227&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US3540070(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Publication of US3540070A publication Critical patent/US3540070A/en
Application granted granted Critical
Publication of US3540070B1 publication Critical patent/US3540070B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • E01H1/0854—Apparatus in which the mechanically dislodged dirt is partially sucked-off, e.g. dislodging- sweeping apparatus with dirt collector in brush housing or dirt container
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—Floor-sweeping machines, motor-driven
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
    • E01H1/04—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt taking- up the sweepings, e.g. for collecting, for loading
US720503A 1968-04-11 1968-04-11 Pivotable section for bottom of hopper on sweeping machine Expired - Lifetime US3540070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72050368A 1968-04-11 1968-04-11

Publications (2)

Publication Number Publication Date
US3540070A US3540070A (en) 1970-11-17
US3540070B1 true US3540070B1 (xx) 1987-03-31

Family

ID=24894227

Family Applications (1)

Application Number Title Priority Date Filing Date
US720503A Expired - Lifetime US3540070A (en) 1968-04-11 1968-04-11 Pivotable section for bottom of hopper on sweeping machine

Country Status (7)

Country Link
US (1) US3540070A (xx)
JP (1) JPS505497B1 (xx)
DE (1) DE1918139A1 (xx)
FR (1) FR2006091A1 (xx)
GB (1) GB1251145A (xx)
NL (1) NL6905578A (xx)
SE (1) SE349740B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2309813A1 (de) * 1972-02-24 1973-09-27 Wayne Manufacturing Co Schuettmechanik fuer strassenkehrfahrzeuge
US20050268590A1 (en) * 2004-06-03 2005-12-08 Marrell Haney Self propelled leaves sweeper machine with internal-combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303448A (en) * 1992-07-08 1994-04-19 Tennant Company Hopper and filter chamber for direct forward throw sweeper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US553029A (en) * 1896-01-14 Street-sweeper
US1238385A (en) * 1916-10-05 1917-08-28 Municipal Equipment Company Street-cleaning machine.
US1356180A (en) * 1919-07-22 1920-10-19 Pite Hawryluk Sweeping-machine
US2286245A (en) * 1939-05-10 1942-06-16 Western Austin Company Street sweeping machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2309813A1 (de) * 1972-02-24 1973-09-27 Wayne Manufacturing Co Schuettmechanik fuer strassenkehrfahrzeuge
US3761988A (en) * 1972-02-24 1973-10-02 Wayne Manufacturing Co Rear dump mechanisms for road sweepers
US20050268590A1 (en) * 2004-06-03 2005-12-08 Marrell Haney Self propelled leaves sweeper machine with internal-combustion engine

Also Published As

Publication number Publication date
DE1918139A1 (de) 1969-12-04
JPS505497B1 (xx) 1975-03-04
US3540070A (en) 1970-11-17
NL6905578A (xx) 1969-10-14
SE349740B (xx) 1972-10-09
FR2006091A1 (xx) 1969-12-19
GB1251145A (xx) 1971-10-27

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Legal Events

Date Code Title Description
RR Request for reexamination filed

Effective date: 19860627

RR Request for reexamination filed

Effective date: 19860711

B1 Reexamination certificate first reexamination