James C. Baker
Electrician in Littleton, CO
License number
Colorado 971698
Issued Date
Oct 11, 1997
Renew Date
Oct 11, 1997
Type
Electrical Apprentice
Address
Address
6705 So Santa Fe Dr LOT #60, Littleton, CO 80120
Personal information
See more information about James C. Baker at radaris.comName
Address
Phone
4930 Villa Loma Ct, Colorado Spgs, CO 80917
Professional information
Precast Reinforced Concrete Railway Crossing Slab
US Patent:
6149067, Nov 21, 2000
Filed:
Dec 14, 1999
Appl. No.:
9/460927
Inventors:
George Clinton Brookhart - Littleton CO
James A. Baker - Littleton CO
Paul B. Miller - Highlands Ranch CO
James A. Baker - Littleton CO
Paul B. Miller - Highlands Ranch CO
Assignee:
Oldcastle Precast, Inc. - Littleton CO
International Classification:
E01B 100
US Classification:
238 8
Abstract:
The present invention discloses a precast railway crossing slab adapted to extend transversely across the surface of conventional railway ties, with slots or gaps dimensioned and disposed to receive a pair of railway rails therethrough. The crossing slab includes a post-tensioning system in which metal cable strands or tendons are sheathed within plastic tubes and are positioned in the slab mold frame prior, to pouring of concrete. Tendon anchors are also disposed in the slab mold frame prior to pouring. After the concrete hardens, a hydraulic jack is used to tension and anchor the tendons in a stressed condition, thus providing reinforcement to the slab. The railway crossing slab of the present invention may be utilized with or without surface or edge metal plating. Flange way fillers which typically comprise rubber strips extending between the sidewalls of the metal rail and the concrete slab may optionally be employed. The slab may be formed integrally with grooves to receive the rails, or alternatively may take the form of three separate slabs provided with screw holes for securement to conventional wooden or concrete railway ties.
Precast Reinforced Concrete Railway Crossing Slab
US Patent:
5924630, Jul 20, 1999
Filed:
Jul 21, 1997
Appl. No.:
8/897391
Inventors:
George Clinton Brookhart - Littleton CO
James A. Baker - Littleton CO
Paul B. Miller - Highlands Ranch CO
James A. Baker - Littleton CO
Paul B. Miller - Highlands Ranch CO
Assignee:
Oldcastle Precast, Inc. - Littleton CO
International Classification:
E01C 904
US Classification:
238 8
Abstract:
The present invention discloses a precast railway crossing slab adapted to extend transversely across the surface of conventional railway ties, with slots or gaps dimensioned and disposed to receive a pair of railway rails therethrough. The crossing slab includes a post-tensioning system in which metal cable strands or tendons are sheathed within plastic tubes and are positioned in the slab mold frame prior to pouring of concrete. Tendon anchors are also disposed in the slab mold frame prior to pouring. After the concrete hardens, a hydraulic jack is used to tension and anchor the tendons in a stressed condition, thus providing reinforcement to the slab. The railway crossing slab of the present invention may be utilized with or without surface or edge metal plating. Flange way fillers which typically comprise rubber strips extending between the sidewalls of the metal rail and the concrete slab may optionally be employed. The slab may be formed integrally with grooves to receive the rails, or alternatively may take the form of three separate slabs provided with screw holes for securement to conventional wooden or concrete railway ties.
Method Of Making A Railway Crossing
US Patent:
6016968, Jan 25, 2000
Filed:
Apr 15, 1999
Appl. No.:
9/292551
Inventors:
George Clinton Brookhart - Littleton CO
James A. Baker - Littleton CO
Paul B. Miller - Highlands Ranch CO
James A. Baker - Littleton CO
Paul B. Miller - Highlands Ranch CO
Assignee:
Oldcastle Precast, Inc. - Littleton CA
International Classification:
E01B 100
US Classification:
238 2
Abstract:
The present invention discloses a precast railway crossing slab adapted to extend transversely across the surface of conventional railway ties, with slots or gaps dimensioned and disposed to receive a pair of railway rails therethrough. The crossing slab includes a post-tensioning system in which metal cable strands or tendons are sheathed within plastic tubes and are positioned in the slab mold frame prior to pouring of concrete. Tendon anchors are also disposed in the slab mold frame prior to pouring. After the concrete hardens, a hydraulic jack is used to tension and anchor the tendons in a stressed condition, thus providing reinforcement to the slab. The railway crossing slab of the present invention may be utilized with or without surface or edge metal plating. Flange way fillers which typically comprise rubber strips extending between the sidewalls of the metal rail and the concrete slab may optionally be employed. The slab may be formed integrally with grooves to receive the rails, or alternatively may take the form of three separate slabs provided with screw holes for securement to conventional wooden or concrete railway ties.
Prefabricated Concrete Support Mechanism For A Railroad Track With Integral Rubber Boot And Method Of Manufacture
US Patent:
2004022, Nov 11, 2004
Filed:
May 5, 2003
Appl. No.:
10/430690
Inventors:
Tom Shillington - Snellville GA, US
Clint Brookhart - Littleton CO, US
James Baker - Littleton CO, US
Clint Brookhart - Littleton CO, US
James Baker - Littleton CO, US
International Classification:
E04D001/36
US Classification:
052/461000, 052/459000
Abstract:
A precast, concrete slab rail system is provided which includes a resilient boot positioned around at least one rail, and which can be reversibly installed or removed from the concrete slab without the use of attachment hardware or destruction of the concrete slab.