Solid material comminution or disintegration – Processes – Miscellaneous
Reexamination Certificate
2011-03-22
2011-03-22
Rosenbaum, Mark (Department: 3725)
Solid material comminution or disintegration
Processes
Miscellaneous
C241S031000, C241S036000, C241S236000, C241S101300
Reexamination Certificate
active
07909273
ABSTRACT:
A shredder is disclosed having a gas detection system. According to one embodiment, one or more sensors may be placed inside the housing of the shredder to detect the presence of gases, and in particular, flammable or combustible gases. If a gas is sprayed into the shredder, the sensor(s) will detect the gas and the shredder may be deactivated. In addition, an exhaust fan may also be activated to purge the gas from the housing. Further, one or more indicators may be provided to alert the user that the sensor has detected gas. For example, a visible signal and/or audible sound may be generated to alert the user that the sensor has detected a flammable or combustible gas.
REFERENCES:
patent: 5887806 (1999-03-01), Onken
patent: 6076752 (2000-06-01), Paradowski et al.
patent: 6663029 (2003-12-01), Takano et al.
patent: 7154402 (2006-12-01), Dayoub
Product Information Sheet retrieved from Internet, Fenwal Protection Systems, “Waste Shredders Explosion Protection by Application”, http://www.fenwalprotection.com/utcfs/Template/Pages./Template-540/0,8063,pageId+1164&sitl..., Dec. 16, 2008, 4 pages.
Product Information Specs from Cypress Semiconductor. Corporation, “PSoC® Mixed-Signal Array”, Models CY8C21634, CY8C21534, CY8C21434, CY8C21334, and CY8C21234, Apr. 18, 2008, pp. 1-40.
Product Information Sheet from Alphasense Ltd., for CH-D3 Combustible Gas Pellistor, Retrieved from Internet at www.alphasense.com, Dec. 16, 2008, 2 pages.
Product Information Sheet from Figaro for “TGS 832—for the detection of Chlorofluorcarbons (CFC's)”, Sep. 2002; 2 pages.
Product Information Sheet from National Semiconductor. Corporation for “LM35 Precision Centigrade Temperature Sensors”, Nov. 2000; 13 pages.
Product Information Sheet and Spec from U.S. Sensor, Orange, CA for DO-35 Standard Glass Encapsulated Thermistors, retrieved from Internet Dec. 16, 2008, 2 pages.
Preventable Fire Stories website, Archive for the ‘paper shredder’ Category, found at url: <http://exactproductsinc.com/WordPress/?cat=37>, earliest posting dated Apr. 22, 2006.
Andrews Brian A.
Jensen Michael D.
Fellowes Inc.
Pillsbury Winthrop Shaw & Pittman LLP
Rosenbaum Mark
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