ROBERT R JOHNSON, DO
Psychiatric at Bristol St, Costa Mesa, CA

License number
California 20A4908
Category
Psychiatric
Type
Psychiatry
Address
Address
3150 Bristol St STE 400, Costa Mesa, CA 92626
Phone
(949) 266-3700
(949) 266-3750 (Fax)

Organization information

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ROBERT R. JOHNSON, MEDICAL CORPORATION

3151 Airway Ave, Costa Mesa, CA 92626

Status:
Inactive
Registration:
Dec 23, 1991
State ID:
C1812421
Business type:
Articles of Incorporation
President:
Robert R. Johnson President, inactive
Agent:
Robert R Johnson Do,Costa Mesa, CA 92626 (Physical)

Professional information

Robert Johnson Photo 1

Method And Apparatus To Fill & Fire Proof Holes In Concrete Floors Of Commercial Buildings Utilizing A Precast Plug

US Patent:
2013031, Nov 28, 2013
Filed:
Apr 1, 2013
Appl. No.:
13/854795
Inventors:
Robert W. Johnson - Costa Mesa CA, US
Gerald R. Gray - Costa Mesa CA, US
International Classification:
E04G 23/02
US Classification:
52514, 5274214
Abstract:
The present apparatus and method relates in general to sealing a hole in a floor with a precast plug. A precast plug is created by pouring a wet aggregate mix into a form mold and thereafter inserting a pre bent rod into the uncured mixture, positioning it such that the center of the rod rests in the center of the form mold and the ends of the rod extend outward near the top of the form mold. The mix is then cured. The precast plug may then be transported to the hole that it is destined to fix. Grooves may be carved on either side of the hole to accommodate the rod's ends. The interior of the hole and the exterior of the plug may then be covered with a sealant, after which the plug may be inserted into the hole. Once the sealant cures, the hole is fully repaired.