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:
Jan. 20, 1987
Filed:
Feb. 22, 1985
Robert Bosch GmbH, Stuttgart, DE;
Abstract
To provide for reliable explosion of an explosive pill, or the like in a passenger restraint system, for example to trigger an air belt, or a seat belt lock, an input signal derived from an impact transducer is applied to an integrator, the integrator being connected to a threshold circuit, to filter noise signals and the output signal from the threshold circuit being applied to an output terminal (8) for connection to the explosive pill or charge. To provide for reliable triggering of the explosive pill or charge, even if the input to the threshold circuit from the integrator passes the threshold level only for a very short period of time, so that the output signal from the threshold circuit (3) is below a desired minimum for triggering the explosive pill, the integrator is coupled to a threshold level circuit (1), the threshold setting of which is modified or changed upon occurrence of an output signal from the threshold circuit, by differentiating the output signal from the threshold circuit and modifying the threshold level in accordance with a differentiated signal; in the alternative, the output signal from the threshold circuit is passed through a summing circuit such as an OR gate (52) and, simultaneously used to trigger a monostable element (51), the output of which is summed in the OR gate to provide for an extended output UA at the output terminal of the system.