Tamper-resistant vehicle event recorder
First Claim
Patent Images
1. 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.
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Accused Products
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.
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Citations
10 Claims
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1. A temper-resistant vehicle event recorder comprising:
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(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. - View Dependent Claims (2, 3, 4)
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5. A method for making a tamper-resistant vehicle event recorder comprising:
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(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.
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6. A tamper-resistant vehicle event recorder comprising:
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(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. - View Dependent Claims (7, 8, 9)
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10. A method for making a tamper-resistant vehicle event recorder comprising:
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(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.
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Specification