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US 5,471,193 AGranted
Tamper-resistant vehicle event recorder
AssigneePhillips Plastics Corporation
InventorsFrancis C. Peterson, James A. Weinert
Life of this patent
Estimating the term…
Abstract
A tamper-resistant vehicle event recorder having a combustible film on a polymeric substrate, an ignition mechanism for igniting the combustible coating and an activation mechanism connected to the ignition mechanism for activating the ignition mechanism in response to a vehicular event.
Claims10
A temper-resistant vehicle event recorder comprising:
- (a) a polymeric substrate;
- (b) a combustible fuel coating on said polymeric substrate;
- (c) an igniter for igniting said combustible fuel coating;
- and
- (d) activation means connected to said igniter for activating the igniter in response to a vehicular event.
2 more elements
A method for making a tamper-resistant vehicle event recorder comprising:
- (a) providing a polymeric substrate with first and second sides;
- (b) coating said first side of said polymeric substrate with an igniter for igniting a combustible film, said igniter having a first terminal portion and a second terminal portion, connected together by an igniter strip portion having a smaller cross sectional area than said first terminal portion or said second terminal portion;
- (c) coating said first side of said polymeric substrate with a combustible fuel coating such that said combustible coating is in contact with said igniter strip portion of said igniter;
- and
- (d) connecting said ignitor to an activation mechanism which is arranged and configured to send an electrical current of one ampere through said igniter upon the occurrence of a predetermined vehicular event.
2 more elements
A tamper-resistant vehicle event recorder comprising:
- (a) a polymeric substrate;
- (b) ignition means on said polymeric substrate having a first tapered terminal portion and a second tapered terminal portion, said first and second portions being connected by an igniter strip portion having a smaller cross-sectional area than either said first terminal portion or said second terminal portion;
- (c) a combustible fuel coating on said polymeric substrate overlying said igniter strip portion of said igniter;
- and
- (d) activation means connected to said igniter for activating the ignition means in response to a vehicular event.
2 more elements
A method for making a tamper-resistant vehicle event recorder comprising:
- (a) providing a polymeric substrate with first and second sides;
- (b) screen printing said first side of said polymeric substrate with a conductive ink mixture to form an igniter for igniting a combustible fuel layer, said igniter having a first terminal portion and a second terminal portion, and an igniter portion between said first terminal portion and said second terminal portion having a smaller cross-sectional area than either said first terminal portion or said second terminal portion;
- (c) screen printing said first side of said polymeric substrate with a combustible fuel coating such that said combustible coating is in contact with said igniter portion of said igniter;
- and
- (d) connecting said igniter to an activation mechanism which is arranged and configured to send an electrical current of at least one ampere through said igniter upon the occurrence of a predetermined vehicular event.
2 more elements
Dependencies are inferred from the claim text.