Resumes
Resumes
Thomas Krech Phones & Addresses
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7429 Ivystone Ave, Cottage Grove, MN 55016 (651) 458-3893
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St Paul Park, MN
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St Paul Park, MN
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7429 Ivystone Ave S, Cottage Grove, MN 55016
Publications
Us Patents
Wear Resistant Pavement Marking
View pageUS Patent:
6431788, Aug 13, 2002
Filed:
Nov 13, 1998
Appl. No.:
09/191330
Inventors:
Thomas P. Hedblom - Eagan MN
Eric E. Rice - Woodbury MN
Curtis W. Meverden - White Bear Township MN
Gregory E. Gilligan - Hastings MN
Thomas D. Krech - Cottage Grove MN
Eric E. Rice - Woodbury MN
Curtis W. Meverden - White Bear Township MN
Gregory E. Gilligan - Hastings MN
Thomas D. Krech - Cottage Grove MN
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
E01F 906
US Classification:
404 14, 404 12, 404 17
Abstract:
A pavement marking and methods of making pavement markings are disclosed in which the pavement markings exhibit enhanced wear resistance to, e. g. , snowplow blades. The pavement markings include elongated protuberances in which successive elongated protuberances overlap along at least the longitudinal direction and may also overlap in a direction transverse to the longitudinal axis. Other protuberances are interspersed between the elongated protuberances to improve retroreflectivity. The elongated protuberances are provided to support, e. g. , a snowplow blade moving over the pavement marking.
Elastomeric Pavement Marker Having Improved Configuration
View pageUS Patent:
45211299, Jun 4, 1985
Filed:
Jun 17, 1983
Appl. No.:
6/505382
Inventors:
Thomas D. Krech - Cottage Grove MN
David C. May - Stillwater MN
David C. May - Stillwater MN
Assignee:
Minnesota Mining and Manufacturing Company - Saint Paul MN
International Classification:
E01F 906
US Classification:
404 10
Abstract:
Flexible, raised pavement markers having improved shapes which take advantage of relief cuts and ribs to increase the durability and retention of reflectivity. One embodiment of such a marker comprises: a flexible body made of sponge rubber and having a raised surface connected to a base portion through a connecting portion, a reflective film attached to the raised portion, and a pressure-sensitive adhesive on the base. Relief cuts along the back of the connecting portion provide a bending or folding action whereby the reflective film is made to lie flat when a tire passes over the marker, thus protecting the reflective sheeting from scuffing.