Hydraulic and earth engineering – Foundation – Columnar structure
Patent
1995-01-25
1996-09-10
Bagnell, David J.
Hydraulic and earth engineering
Foundation
Columnar structure
166 931, 254 29R, F02D 900, F21B 1900
Patent
active
055539793
ABSTRACT:
A pull cap is positioned about the exposed end of a probe rod and engages a pulling device to remove the probe rod from the ground. The pull cap has a first body section with a first concave surface disposed adjacent one end of the first section and for engaging the exposed end of the rod. The first body section also has a first channel on its outer surface adjacent the other end of the first section. A second body section has a second concave surface disposed adjacent one end of the second section and for engaging the exposed end of the rod. The second body section also has a second channel on its outer surface adjacent the other end of the second section. A hinge arrangement is disposed on both the first and second sections adjacent the other ends of the first and second sections. The hinge arrangement hinges the first and second sections together so that the pull cap has an open position and a closed position. The first and second concave surfaces engage the exposed end of the probe rod when the pull cap is in its closed position so that the pull cap can be used to remove the probe rod from the ground. An elastic member is positioned in the first and second channels and biases the pull cap into its closed position.
REFERENCES:
patent: 836065 (1906-11-01), Coates
patent: 5154537 (1992-10-01), McCown, Sr. et al.
patent: 5375664 (1994-12-01), McDowell et al.
patent: 5377768 (1995-01-01), Smith
Pages 2.3 and 2.4 of "Geoprobe Systems, 1993-1994 Equipment and Tools Catalog," and the pull caps depicted therein which were published, in public use or on sale in the United States prior to Jan. 25, 1994.
Kejr Melvin P.
Wittig Volker
Bagnell David J.
Kejr Engineering, Inc.
Laoman Frederick L.
LandOfFree
Pull cap for attachment to a probe rod does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pull cap for attachment to a probe rod, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pull cap for attachment to a probe rod will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1315752