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:
Jul. 24, 1979
Filed:
Jan. 15, 1976
Applicant:
Inventors:
George P Nissen, Cedar Rapids, IA (US);
Harlan J Kelly, Cedar Rapids, IA (US);
Assignee:
Nissen Corporation, Cedar Rapids, IA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A63B / ; F16F / ;
U.S. Cl.
CPC ...
267 73 ; 5233 ; 5260 ; 182139 ; 267 89 ; 272 65 ;
Abstract
The typical helical springs used to support the bed within the frame of a trampoline or the like are modified to incorporate adjustable hooks threadedly anchored within the springs at one end so that their overall length, and thus the tension on the bed, can be varied and overstretching accommodated. Two principal versions are disclosed, the more preferred one including an additional inner spring biasing the adjustable hook to a retracted position.
Quick Actions:
Nissen, George. (1979). Adjustable springs for trampolines and the like (U.S. Patent No. 4162063). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4162063
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile