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. 21, 1984
Filed:
Jul. 01, 1981
Applicant:
Inventors:
Esa Varkia, Espoo, FI;
Osmo Reittu, Espoo, FI;
Assignee:
Vaisala Oy, , FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
242 50 ; 242 96 ; 242118 ; 242222 ;
Abstract
Bobbin apparatus for releasing a connecting filament between a radiosonde and the sonde balloon in a controlled manner during the ascent thereof includes a longitudinally extending member adapted to be affixed to the balloon around which the filament is wound and having a transverse dimension which increases in the longitudinal direction from a narrow upper end to a wide lower end thereof. The filament will unwind from the bobbin member during ascent of the balloon causing the bobbin member to periodically oscillate in a manner such that the filament will unwind without fouling and at an appropriate rate.