Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
1999-08-27
2001-07-03
Hofsass, Jeffery (Department: 2632)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S573100, C340S573700, C340S626000, C340S573300, C340S666000
Reexamination Certificate
active
06255956
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates generally to the field of warning devices, and more particularly to a seat operated switch and warning system.
In recent years the number of people who are diagnosed with Alzheimers Disease has increased considerably. This is due in part because there are a greater number of elderly people living today than ever before. The care of Alzheimer patients can be difficult in that there short term memory is impaired and therefore patients can easily forget instructions given to them. If left unattended, an Alzheimer patient may wander away and then find him or herself in a state of panic and confusion when they fail to recognize where they are. For this reason Alzheimer care givers need to keep a constant eye on their pateints. Unfortunately, care givers frequently have other chores to do or have a number of patients to care for making it difficult to keep a constant watch on each patient. One way to solve this problem is to restrain the patient in some way, however this is obviously an unsatisfactory solution in that the lack of freedom of movement is regarded as inhumane. There is therefore a need to alert Alzheimer care givers as to if and when an Alzheimer patient leaves his or her seat or bed. To this end it would be helpful to have a device that creates a warning sound when a person leaves his or her seat or bed.
Various types of seat operated switches are known including those found in current model vehicles that alert a person to attach his or her seat belt. However these mechanical switch based warning devices are built into the underside of the seat and are not removable or replaceable. They also do not transmit a signal to a remote location where a person some distance away can be alerted to the fact that someone is or is not in a seat.
Additionally, the mechanical switch based warning system can be defeated if the person in the seat sits on one edge of the seat and might not activate the switch. Finally, existing seat operated warning systems do not have the option of having a custom recorded message play when a person leaves the seat.
SUMMARY OF THE INVENTION
The primary object of the invention is a seat operated switch and warning system that monitors whether or not a person is sitting on a chair or the like.
Another object of the invention is a seat operated switch and warning system that operates by changes in air pressure.
Another object of the invention is a seat operated switch and warning system that transmits an audible alert to an attendant if a person leaves his or her seat.
A further object of the invention is a seat operated switch and warning system that emits a recordable message when a person leaves his or her seat.
Other objects and advantages of the present invention will become apparent from the following descriptions, taken in connection with the accompanying drawings, wherein, by way of illustration and example, an embodiment of the present invention is disclosed.
A seat operated switch and warning system comprising: an inflatable air cushion, an air tube leading from said air cushion to an air pressure switch, an electronic circuit to activate devices when a reduction in air pressure is sensed, a digital recordable message device, a radio frequency transmitting device, a housing to contain said pressure switch, digital message device and transmitting device, a matching radio frequency receiving device, and a housing to contain said receiving device said housing also containing an audio transducer that creates an audible warning sound activated by said receiving device.
The drawings constitute a part of this specification and include exemplary embodiments to the invention, which may be embodied in various forms. It is to be understood that in some instances various aspects of the invention may be shown exaggerated or enlarged to facilitate an understanding of the invention.
REFERENCES:
patent: 4242672 (1980-12-01), Gault
patent: 5140309 (1992-08-01), Gusakov
patent: 5473313 (1995-12-01), Graebe, Jr.
patent: 5600305 (1997-02-01), Stafford et al.
patent: 5808552 (1998-09-01), Wiley et al.
patent: 5945914 (1999-08-01), Holmes et al.
patent: 5990799 (1999-11-01), Boon et al.
patent: 6043747 (2000-03-01), Altenhofen
patent: 6049281 (2000-04-01), Osterweil
Secondo Arlyne A
Tingley Gloria J.
Hofsass Jeffery
Nguyen Huang
Rinne, Jr. Risto A.
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