Ross Robert Ingwersen
Engineers at 41 St, Des Moines, IA

License number
Colorado 49246
Issued Date
Oct 6, 2014
Renew Date
Oct 6, 2014
Expiration Date
Oct 31, 2015
Type
Professional Engineer
Address
Address
919 41St St, Des Moines, IA 50312

Professional information

Ross Ingwersen Photo 1

Structural Tube

US Patent:
2013021, Aug 22, 2013
Filed:
Feb 20, 2012
Appl. No.:
13/400266
Inventors:
Derek Jay Hemphill - Ankeny IA, US
Jake Bigelow - Winterset IA, US
Jason Hoffman - Ankeny IA, US
Ross Robert Ingwersen - Des Moines IA, US
Christopher Alan Jacob - Ankeny IA, US
Ryan Oliver - Grimes IA, US
Brandon Lee Schafer - Newton IL, US
International Classification:
E04C 3/30, E04B 1/38, E04C 3/00
US Classification:
52843, 52848, 52844
Abstract:
Provided is a structure that may include a structural tube having at least one slot extending from an end thereof, an end plate attached to the end of the structural tube, and at least one cross member extending through the at least one slot, the at least one cross member including a first region outside of the structural tube and a second region inside the structural tube.