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:
Aug. 15, 1978
Filed:
Jun. 25, 1976
Roy D Marangoni, Pittsburgh, PA (US);
Harry W Austin, Monroeville, PA (US);
Mine Safety Appliances Company, Pittsburgh, PA (US);
Abstract
A suspension element for suspending a load and absorbing energy if the load is increased suddenly above a predetermined minimum includes a normally rigid ring that is permanently deformable under an applied load above said minimum. Diametrically opposite areas of the ring are connected to a support and a load, but the opposite sides of the ring between those areas are free of the connecting means and subject to being pulled toward each other if the load suspended by the ring suddenly increases beyond the predetermined miminum and elongates the ring in the direction of the movement of the load. The energy required to thus deform the ring is absorbed by the ring.