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. 09, 1993
Filed:
Jan. 29, 1991
Erich Oppliger, Heimberg, CH;
Martin Monkewitz, Lucerne, CH;
Abstract
A testing device, especially for ignition elements, has an acceleration tube (3) with an acceleration piston (4) slidable therein. The space in the acceleration tube (3) between the piston (4) and an exit aperture (7) is connectable with a vacuum pump (10) to accelerate the acceleration piston (4). As soon as a retaining device (5) releases the acceleration piston (4), the latter is accelerated by atmospheric pressure in a direction towards the exit aperture (7). An impact body (6), releasably held in the acceleration piston (4), is adapted to release itself from the acceleration piston (4) as soon as the latter hits the end of the acceleration tube (3), and then flies out of the exit aperture (7) of the acceleration tube (3) against the test object. The invention can also be applied in the field of material testing and quality control.