Insulation presence sensing probe
Patent 4183246 Issued on January 15, 1980. Estimated Expiration Date: 
June 8, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 8, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2696606 2774324 2788552 3049920 3290938 3385095 3673856 3927569 Material depth measurement and indicator Tool for blowing insulation into an existing wall structure InventorApplicationNo. 05/913664 filed on 06/08/1978US Classes:73/290RLIQUID LEVEL OR DEPTH GAUGEExaminersPrimary: Watkins, DonaldAttorney, Agent or FirmInternational ClassG01F 23/14 (20060101)AbstractA probe for use when filling the hollow walls of an existing building with insulation. The probe in the present invention detects, by a pressure responsive means, when the insulation being distributed between the walls of a building has reached the level of the probe. | |
