US 12,320,076 B2
Concrete dowel placement system and method of making the same
Ronald D. Shaw, Costa Mesa, CA (US)
Assigned to SHAW & SONS, INC., Costa Mesa, CA (US)
Filed by Shaw & Sons, Inc., Costa Mesa, CA (US)
Filed on May 10, 2024, as Appl. No. 18/661,451.
Application 18/661,451 is a division of application No. 18/186,078, filed on Mar. 17, 2023, granted, now 12,059,832.
Application 18/186,078 is a division of application No. 17/469,400, filed on Sep. 8, 2021, granted, now 11,623,380, issued on Apr. 11, 2023.
Application 17/469,400 is a continuation of application No. 15/930,362, filed on May 12, 2020, abandoned.
Application 15/930,362 is a continuation of application No. 16/141,137, filed on Sep. 25, 2018, abandoned.
Application 16/141,137 is a continuation in part of application No. 15/587,141, filed on May 4, 2017, granted, now 10,858,825, issued on Dec. 8, 2020.
Application 15/587,141 is a continuation of application No. 14/874,997, filed on Oct. 5, 2015, abandoned.
Prior Publication US 2024/0308126 A1, Sep. 19, 2024
Int. Cl. E01C 11/14 (2006.01); E04B 1/41 (2006.01); E04B 1/48 (2006.01)
CPC E01C 11/14 (2013.01) [E04B 1/4114 (2013.01); E04B 1/48 (2013.01); E04B 1/483 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A concrete dowel placement system for use with a concrete form, the concrete dowel placement system comprising:
a coupler configured to be attachable to the concrete form, the coupler having a first end portion and a second end portion extending along a main axis,
the first end portion having a first end surface perpendicular to the main axis,
the second end portion having an intermediate surface adjacent the first end portion and positioned radially outward from the first end portion, the second end portion extending away from the first end portion and terminating at a second end surface spaced from the intermediate surface and perpendicular to the main axis, the intermediate surface defining an outer diameter that is equal to an outer diameter of the second end surface, the second end portion being different in configuration than the first end portion; and
an elongated, tubular dowel-receiving sheath having an outer surface, an open end portion, a closed end portion, and at least one interior opening extending within the sheath from the open end portion, the open end portion being slidably extensible over the coupler to frictionally engage one of the first end portion and the second end portion of the coupler;
the coupler and the sheath being configured such that when the sheath is frictionally engaged with the second end portion, the sheath is advanceable over the coupler to be placeable in abutting relation to the concrete form.