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)
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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
Application granted granted Critical
Publication of US3540070A publication Critical patent/US3540070A/en
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

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)
  • Refuse Collection And Transfer (AREA)
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 (enrdf_load_stackoverflow) 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 (enrdf_load_stackoverflow)
JP (1) JPS505497B1 (enrdf_load_stackoverflow)
DE (1) DE1918139A1 (enrdf_load_stackoverflow)
FR (1) FR2006091A1 (enrdf_load_stackoverflow)
GB (1) GB1251145A (enrdf_load_stackoverflow)
NL (1) NL6905578A (enrdf_load_stackoverflow)
SE (1) SE349740B (enrdf_load_stackoverflow)

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 (2)

* 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
DE102023126063A1 (de) * 2023-09-26 2025-03-27 Alfred Kärcher SE & Co. KG Kehrmaschine und Verfahren zum Betreiben einer Kehrmaschine

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

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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