US5754102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for alarming of tire deflation
Assignee: Sumitomo Rubber Industries Ltd
•
Filing: 1997-03-18
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Granted: 1998-05-19
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Expires: 2017-03-18
Abstract
Abstract An apparatus for alarming of tire deflation is provided in which reliability of an alarm is raised by a manner of alarming slightly when tire deflation is small and detection accuracy of a deflation detection mechanism is small, while alarming largely when tire deflation is large and deflation is detected with large accuracy. The apparatus comprises deflation detection means for detecting tire deflation; vehicle speed detection means for detecting a speed of a vehicle; and alarm means for deciding an alarm level depending on a detected tire deflation and a detected vehicle speed, and providing an alarm at the decided alarm level.
Inventors
- 👤 Minao Yanase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:21
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/02; B60C23/04; B60C23/0408; B60C23/0401
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
An apparatus for alarming of tire deflation, comprising: deflation detection means for detecting tire deflation; vehicle speed detection means for detecting speed of a vehicle; and alarm means for selecting an alarm level from a table of alarm levels having different magnitudes, said selected alarm level depending on a detected tire deflation and a detected vehicle speed, and providing an alarm having a magnitude proportional to said selected alarm level to include, under a constant level of deflation, a greater magnitude of alarm proportional to a greater magnitude of the detected vehicle speed.
Claim 2
Independent Claim
93 words
An apparatus for alarming of tire deflation, comprising: deflation detection means for detecting tire deflation; vehicle speed detection means for detecting speed of a vehicle; and alarm means for selecting an alarm level from a table of alarm levels having different magnitudes, said selected alarm level depending on a detected tire deflation and a detected vehicle speed, and providing an alarm having a magnitude proportional to said selected alarm level to include, under a constant level of deflation, a greater magnitude of alarm proportional to a greater magnitude of the detected vehicle speed.
Claim 3
Dependent Claim
34 words
The apparatus according to claim 1 wherein the alarm means includes an arithmetic processing means in which is provided the table of alarm levels showing a relationship between vehicle speed level and tire deflation.
Claim 4
Dependent Claim
61 words
The apparatus according to claim 2 wherein said arithmetic processing means selects the alarm level by calculating a tire deflation level based on a signal from the deflation detection means and a vehicle speed based on a signal from the vehicle speed detection means and comparing said calculated tire deflation level and calculated vehicle speed to the table of alarm levels.
Claim 5
Dependent Claim
24 words
The apparatus according to claim 1 wherein said alarm means includes an alarm mechanism which indicates alarm by generating signals to a sound generator.
Claim 6
Dependent Claim
24 words
The apparatus according to claim 1 wherein said alarm means includes an alarm mechanism which indicates alarm by generating signals to a light generator.
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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) | 2001-05-18 | 2001-11-17 | 2002-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-18 | 2005-11-17 | 2006-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-18 | 2009-11-17 | 2010-05-19 | $7700.00 | Window Closed / Lapsed |