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:
Apr. 12, 1988
Filed:
Sep. 17, 1986
James Egan, Billerica, MA (US);
Other;
Abstract
A jet pump vacuum device for picking up debris includes an elongated tubular vacuum member having an input end and an output end and a high pressure air tube for discharging a jet of high pressure air into said elongated vacuum member at a point therein between said input and output ends, whereby said high pressure air discharged flows to said output end and draws ambient air into said input end, the flow of said ambient air into said input end being sufficient to carry said debris into said input end, through said vacuum member and out said output end is adapted with means for varying the position of said point of discharge of high pressure air within said elongated vacuum member. In a preferred embodiment an elongated opening is provided in a side of the elongated vacuum member through which the high pressure tube projects into the elongated vacuum member, means are provided for sealing between the high pressure air tube and the vacuum member opening and the high pressure air tube is moveable along the elongated vacuum member side wall opening, so that the longitudinal position of the high pressure air tube within the elongated vacuum member is variable.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile