Ventilation – Having outlet airway – With air pump
Patent
1998-08-20
2000-04-25
Joyce, Harold
Ventilation
Having outlet airway
With air pump
F24F 7007
Patent
active
060538104
DESCRIPTION:
BRIEF SUMMARY
This invention is made up of a device combining a triple function for detecting dangerous gas leaks, warning of its presence via audio-visual alarms and extracting surplus gas detected to the outside.
In the state-of-the-art where this invention resides, referring to gas leak safety appliances, detectors fitted with alarms activated by a certain level of gas build-up are known.
However, none of such known detectors includes the function of extracting the gas from the place where build-up has been detected, as this invention does.
This invention combines such functions into a small sized appliance, particularly conceived for fitting in house kitchens and small rooms.
Manufacturing costs involved in this invention are low, meaning that it can be afforded by any consumer and the simplicity of its components makes very low cost repairs possible.
The invention is particularly recommended for houses, flats or premises which are uninhabited for long periods of time, where conventional gas leak detectors are ineffective because activation of their audio-visual alarms does not eliminate the risk of gas which is continuing to build up exploding unless someone on the outside perceives the alarms and proceeds to ventilate the room where gas has accumulated.
In the face of such risk situations, this invention proffers the functional advantage of the fact that the actual device being claimed, after detecting gas and activating its audio-visual alarms, without the user or third parties intervening, automatically extracts the accumulated gas and eliminates the risk of an explosion in the dwelling or gas poisoning of people in the vicinity who, because of some physical handicap such as deafness, or through listening to high volume music or watching the television with the sound high had not perceived the acoustic alarms or are in other rooms and cannot see the visual alarm displays.
This invention offers such functional advantages, as it embodies in its small sized casing a fan for expelling gas detected by the device itself to the outside. The fan blades are driven by the shaft of a motor hermetically encapsulated in a place separated from the duct where the gas runs when expelled. This removes the risk of fire from gas coming into contact with some spark caused by the running motor, particularly as the fan shaft point of connection with the motor's encapsulated space is also sealed.
Due to providing for the appliance's motor to be encapsulated and that the appliance has to be on the same horizontal plane centred with respect to the fan and the grill for sucking out gas accumulated inside the dwelling, this appliance's extractor duct, seen in an elevated side section, describes a curved trajectory with an inflection point until it links with the outside grill.
As an alternative, to improve the appliance's extracting function capacity, the invention provides for the gas expulsion duct to separate or branch off, after a common commencement at the inside grill, into two or more gas extraction channels, also with a curved side cross section with an inflection point.
These branched ducts run opposite to each other in diametrically opposed, equidistant trajectories, enclosing an inside space between them where the sealed encapsulated motor is housed which, in this alternative, is positioned with a 90.degree. turn or slope with respect to its position in the alternative of a single extraction duct.
A sheet of drawings where non-limiting examples of this invention's embodiment can be seen is attached for better understanding of this invention's functionality as described.
FIG. 1 shows a cross section in side elevation of the invention.
FIG. 2 shows the front of the device claimed viewed from inside the dwelling where installed.
FIG. 3 shows the alternative to this invention, with the same cross section as FIG. 1, made up of a branching off of its inside channel.
FIG. 4 gives a view of the invention alternative in FIG. 3 from inside the dwelling where the device is located.
All these figures show the encapsulated motor (1), locate
REFERENCES:
patent: 3210547 (1965-10-01), Iliot
patent: 3826180 (1974-07-01), Hayashi
patent: 3950155 (1976-04-01), Komiyama
LandOfFree
Domestic gas detection and expulsion appliance does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Domestic gas detection and expulsion appliance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Domestic gas detection and expulsion appliance will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-989390