US5089808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device giving warning when undesired lifting position is assumed
Assignee: AMSAU COMPANY Inc A CORP OF CALIFORNIA
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Filing: 1990-10-26
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Granted: 1992-02-18
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Expires: 2010-10-26
Abstract
Abstract A device giving warning when an undesired lifting position is assumed by a worker preparing to lift an object has a case having a longitudinal axis. A switch is mounted in the case and has operative and inoperative positions and assumes an operative position when the switch is tilted from the vertical beyond a predetermined angle. An alarm is carried by the case and electronic circuitry is connected to the tilt switch and to the alarm for actuating the alarm when the tilt switch is moved from the vertical beyond the predetermined position.
Inventors
- 👤 Omar S. Amirdash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:48
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/02; A; A61; A61B; A61B5/00; A61B5/103; A61B5/11; A61B5/1116
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
238 words
A device adapted to be inserted into the shirt pocket of a wearer giving warning when an undesired lifting position is assumed by a worker in the bending of the worker's back in preparing to lift an object, comprising an elongate case having a longitudinal axis and having a top wall, said case being of a size so that it can be placed in the shirt pocket of the wearer, a switch mounted in the case and having operative and inoperative positions and assuming an operative position when the switch is tilted from the vertical beyond a predetermined angle, an alarm carried by the case and electronic circuitry connected to the tilt switch and to the alarm for actuating the alarm when the tilt switch is moved from the vertical beyond said predetermined position, a clip secured to the outside of the case and extending below the top wall, and adapted to be secured to the shirt pocket of the wearer to prevent the device from falling out of the shirt pocket of the wearer while the worker is bending his back and an additional switch mounted in the case and extending through the top wall so that it is readily accessible to the wearer for operation of the same while the device is in the shirt pocket of the wearer, said additional switch being connected into said electronic circuitry for turning said electronic circuitry on and off.
Claim 2
Independent Claim
238 words
A device adapted to be inserted into the shirt pocket of a wearer giving warning when an undesired lifting position is assumed by a worker in the bending of the worker's back in preparing to lift an object, comprising an elongate case having a longitudinal axis and having a top wall, said case being of a size so that it can be placed in the shirt pocket of the wearer, a switch mounted in the case and having operative and inoperative positions and assuming an operative position when the switch is tilted from the vertical beyond a predetermined angle, an alarm carried by the case and electronic circuitry connected to the tilt switch and to the alarm for actuating the alarm when the tilt switch is moved from the vertical beyond said predetermined position, a clip secured to the outside of the case and extending below the top wall, and adapted to be secured to the shirt pocket of the wearer to prevent the device from falling out of the shirt pocket of the wearer while the worker is bending his back and an additional switch mounted in the case and extending through the top wall so that it is readily accessible to the wearer for operation of the same while the device is in the shirt pocket of the wearer, said additional switch being connected into said electronic circuitry for turning said electronic circuitry on and off.
Claim 3
Dependent Claim
41 words
A device as in claim 1 wherein said circuitry includes timing means for preventing a signal from being emitted by the alarm prior to the elapse of a predetermined time, during which time the tilt switch is in an operative position.
Claim 4
Dependent Claim
17 words
A device as in claim 2 wherein said circuitry includes an oscillator for generating an audible tone.
Claim 5
Dependent Claim
18 words
A device as in claim 3 wherein said circuitry includes an additional oscillator for modulating said audible tone.
Claim 6
Dependent Claim
25 words
A device as in claim 2 wherein said timing means of said timing circuitry includes a resistive/capacitive network and means for discharging said resistive/capacitive network.
Claim 7
Dependent Claim
17 words
A device as in claim 1 wherein said circuitry includes batteries and conductors connected to said batteries.
Claim 8
Dependent Claim
17 words
A device as in claim 1 wherein said alarm is in the form of an audible speaker.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-17 | 1995-08-19 | 1996-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-17 | 1999-08-19 | 2000-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-17 | 2003-08-19 | 2004-02-18 | $7700.00 | Window Closed / Lapsed |