US5157601A
Expired / Lapsed
US
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Method for estimating body alcohol concentration
Assignee: CMI Inc
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Filing: 1990-01-05
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Granted: 1992-10-20
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Expires: 2010-01-05
Abstract
Abstract This invention relates to apparatus for estimating body alcohol concentration from personal body characteristics. For example, a calculator 10 has a keyboard 12 through which the user can input information concerning his sex, body weight, degree of fat, food consumption, alcohol consumption and the timing of these last two events. Depending on the mode into which the apparatus is set, the user can be told his maximum body alcohol concentration, how much more he may drink before reaching a legal limit, or when he may achieve the legal limit if he drinks no more.
Inventors
- 👤 Thomas P. Jones
- 👤 Paul M. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:18
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/483; G01N33/497; G01N33/4972; G16; G16H; G16H40/00; G16H40/60; G16H40/63
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
143 words
A method for limiting body alcohol concentration of a consumer, comprising the steps of: (a) determining the body characteristics of the consumer; (b) measuring the weight of the alcohol consumed (Ac) by the consumer; (c) measuring the time elapsed (T) during alcohol consumption; (d) calculating the estimated body alcohol concentration (C) as a function of the body characteristics, weight of alcohol consumed, time of consumption and (e) correcting said calculated concentration (C) according to whether food consumption (F) comprises (1) none, (2) a snack, or (3) a full meal, so as to obtain a corrected body alcohol concentration (Cc) by multiplying C by 1.0 if no food is consumed, by about 0.9 for a snack and by about 0.7 for a full meal; and (f) the consumer altering at least one of (Ac), (T) and (F) to maintain (Cc) below a predetermined maximum.
Claim 2
Independent Claim
143 words
A method for limiting body alcohol concentration of a consumer, comprising the steps of: (a) determining the body characteristics of the consumer; (b) measuring the weight of the alcohol consumed (Ac) by the consumer; (c) measuring the time elapsed (T) during alcohol consumption; (d) calculating the estimated body alcohol concentration (C) as a function of the body characteristics, weight of alcohol consumed, time of consumption and (e) correcting said calculated concentration (C) according to whether food consumption (F) comprises (1) none, (2) a snack, or (3) a full meal, so as to obtain a corrected body alcohol concentration (Cc) by multiplying C by 1.0 if no food is consumed, by about 0.9 for a snack and by about 0.7 for a full meal; and (f) the consumer altering at least one of (Ac), (T) and (F) to maintain (Cc) below a predetermined maximum.
Claim 3
Dependent Claim
18 words
A method as defined in claim 1, wherein said body characteristics include weight (W), sex (S) and height.
Claim 4
Dependent Claim
22 words
A method as defined in claim 1, wherein said body characteristics include body weight (W), sex (S) and a build factor (B).
Claim 5
Dependent Claim
47 words
A method as defined in claim 1, and further comprising the step of calculating the weight of the alcohol present (Ap) in the consumer's body at any particular time in accordance with the equation Ap=Ac-Al where (Al) is the weight of alcohol burnt up in the liver.
Claim 6
Dependent Claim
41 words
A method as defined in claim 4, wherein the estimated body alcohol concentration (C) is calculated in accordance with the equation ##EQU2## where (W) is the consumer's body weight, (S) is the consumer's sex, and (B) is the consumer's build factor.
Claim 7
Dependent Claim
38 words
A method as defined in claim 5, and further comprising the step of calculating an estimate of the current concentration (Cc) of blood alcohol of the consumer as a function of the food (F) consumed by the consumer.
Claim 8
Dependent Claim
30 words
A method as defined in claim 1, and further comprising the steps of setting a maximum level of body alcohol concentration and sounding an alarm when the maximum is exceeded.
Claim 9
Dependent Claim
32 words
A method as defined in claim 7, and further comprising the step of calculating the quantity of alcohol that may be consumed prior to reaching said maximum level of body alcohol concentration.
Claim 10
Dependent Claim
24 words
A method as defined in claim 1, and further comprising the step of calculating a future body alcohol concentration as a function of time.
Claim 11
Dependent Claim
27 words
A method as defined in claim 1, and further comprising the step of calculating the time at which the body will reach a predetermined body alcohol concentration.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-20 | 1996-04-20 | 1996-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-20 | 2000-04-20 | 2000-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-20 | 2004-04-20 | 2004-10-20 | $7700.00 | Window Closed / Lapsed |