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:
Dec. 05, 1989
Filed:
Mar. 27, 1989
Applicant:
Inventor:
Dominique Lesquir, Buckland, CA;
Assignee:
IPL Inc., Quebec, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01G / ;
U.S. Cl.
CPC ...
47 52 ;
Abstract
The disclosure herein describes a device for collecting sap from trees which has a sap-collecting section adapted to be inserted into the outer layers of a tree; this section displays thereon an annular recess in which is received an expansible sealing element. A second member is partially mounted over the sap-collecting section of the first member and is adapted to be moved against the sealing element so as to expand the element when the device is inserted into a tree cavity to thereby prevent air infiltration in the device when the sap-collecting system is operating under vacuum conditions.