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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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Class Information
Number: 405/283
Name: Hydraulic and earth engineering > Earth treatment or control > Shoring, bracing, or cave-in prevention > Trench shoring > Shield type
Description: Method or apparatus wherein the temporary bracing moves with the work as the excavation continues.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8151463 Process for making a panel for supporting the walls of an excavation Apr. 10, 2012
7887247 Underground earth retention strut construction method using horizontal frame structure Feb. 15, 2011
7883296 Shoring beam extension and reinforcement assembly Feb. 8, 2011
7837413 Adjustable trench box and spreader bar Nov. 23, 2010
7690867 Center beam connection assembly for temporary shoring Apr. 6, 2010
7537417 Corner connection for temporary shoring May. 26, 2009
7530767 Trench box safety ladder May. 12, 2009
7402003 Trench box moving apparatus and method Jul. 22, 2008
7258511 Shoring system Aug. 21, 2007
7140808 Catwalk device and method Nov. 28, 2006
7128500 Corner connection for temporary shoring Oct. 31, 2006
7021868 Lightweight shoring system for accommodating crossing utilities Apr. 4, 2006
6984092 Corner connection for temporary shoring Jan. 10, 2006
6907957 Trench shield ladder Jun. 21, 2005
6554544 Method to build a water seal, creep-line increasing cutoff Apr. 29, 2003
6474911 Trench sheeting device Nov. 5, 2002
6443665 Trench shielding and shoring device Sep. 3, 2002
6416259 Corner connection for temporary shoring Jul. 9, 2002
6267538 Beam joining cap for trench shield Jul. 31, 2001
6224296 Sliding double panel type trench shoring system May. 1, 2001
6164874 Sheeting device Dec. 26, 2000
6164875 Trench shield directly ridable and movable on a constructing pipe Dec. 26, 2000
6155750 Trench shield having wheels simultaneously provided for protection and rolling purposes Dec. 5, 2000
5931608 Trench shoring transport device Aug. 3, 1999
5902075 Trench falsework system May. 11, 1999
5876153 Trench falsework panel Mar. 2, 1999
5868526 Trench shield Feb. 9, 1999
5865567 Movable trench shoring device Feb. 2, 1999
5829921 Trench falsework panel Nov. 3, 1998
5741091 Shoring device with load optional enhancing spreaders Apr. 21, 1998
5725330 Joining arrangement Mar. 10, 1998
5720580 Apparatus for and method of shoring a trench Feb. 24, 1998
5669738 Modular trench box sheeting Sep. 23, 1997
5527137 Knife structure for shoring assemblies used in excavations Jun. 18, 1996
5503504 Sheeting device Apr. 2, 1996
5336023 Self-propelled trench box Aug. 9, 1994
5310289 Apparatus for sheeting deep trenches May. 10, 1994
5310290 Protective structure for excavations May. 10, 1994
5306103 Wheeled carriage assembly for trench shields Apr. 26, 1994
5277522 Trench shield assembly Jan. 11, 1994
5232313 Shoring guard Aug. 3, 1993
5193938 Method and apparatus for laying pipe Mar. 16, 1993
5129763 Trench safety device Jul. 14, 1992
5123785 Trench-shoring appartus Jun. 23, 1992
5096334 Shoring shield Mar. 17, 1992
4993880 Trench-box panel Feb. 19, 1991
4900197 Process for holding up the lateral walls of deep ditches Feb. 13, 1990
4874271 Self-propelled trench shoring machine Oct. 17, 1989
4850747 Trench box Jul. 25, 1989
4842774 Pyramiding tumuli waste disposal site and method of construction thereof Jun. 27, 1989

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