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.
Patent No.:
Date of Patent:
Feb. 02, 1999
Filed:
Mar. 27, 1997
Arkadi Relin, Langhorne, PA (US);
Michael Valdman, Boston, MA (US);
Simon Litvin, Brighton, MA (US);
Yury Fedosov, Pushkin, Saint Petersburg, RU;
Vladimir Vasiliev, Saint Petersburg, RU;
Victor Vasiliev, deceased, late of Saint Petersburg, RU;
by Nataly Vasliev, legal representative, Saint Petersburg, RU;
Oleg Gerasimov, Saint Petersburg 192102, RU;
Other;
Abstract
In a method of and a device for suction transporting a material from an object surface, the suction transporting device has a suction unit and a unit for modulating the suction. A suction is applied to a transporting line by the suction unit so that a material is transported through the transporting line from an inlet to an outlet. A suction force of the suction produced in the transporting line is modulated by communicating an interior of the transporting line with atmosphere through a passage and periodically changing the area and the shape of the passage during the transporting. The frequency of the modulation is changed in dependence on the distance between the inlet of the transporting line and the object surface.