The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 24, 1990

Filed:

Oct. 25, 1988
Applicant:
Inventors:

Osamu Shishido, Shizuoka, JP;

Satoru Noguchi, Shizuoka, JP;

Seiji Seino, Shizuoka, JP;

Assignee:

Amano Corporation, Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01H / ;
U.S. Cl.
CPC ...
15 83 ; 15 4 / ;
Abstract

A bulky dust sweeper has side brushes for brushing and gathering bulky dust, and a main brush mounted on a bottom portion of its vehicle body and adapted to sweep the bulky dust into a hopper. The bulky dust sweeper also has a scrape-in device disposed within the hopper for scraping the bulky dust which has been swept into the hopper by the main brush, into a dust connected to the inside of the hopper, a push-in device disposed at an inlet port of the duct and adapted to push the bulky duct, which has been scraped into the duct by the scrape-in device, toward the uppermost end of the duct, and a dust collecting bag removably attached to a top opening of the duct and adapted to collect the dust therein.


Find Patent Forward Citations

Shishido, Osamu. (1990). Bulky dust sweeper (U.S. Patent No. 4942639). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4942639

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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