Pier lifting for elevating building footings
Description
FIG. 1 is a perspective view of a pier lifter for elevating building footings showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a left side elevational view thereof with the right side being a mirror image;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a front elevational view thereof; and,
FIG. 6 is a rear elevational view thereof.
The broken line showing of a pipe shaft is for illustrative purposes only and forms no part of the claimed design.
Referenced Cited
U.S. Patent Documents
Other references
570370 | October 1896 | Breuchaud |
598418 | February 1898 | Gillespie |
2982103 | May 1961 | Revesz |
3685301 | August 1972 | Heacox |
3796055 | March 1974 | Mahony |
3902326 | September 1975 | Langenbach, Jr. |
4634319 | January 6, 1987 | May |
4673315 | June 16, 1987 | Shaw et al. |
4678373 | July 7, 1987 | Langebach, Jr. |
4765777 | August 23, 1988 | Gregory |
4854782 | August 8, 1989 | May |
- Brochure-Haynes Construction Co., Ballwin, MO. "Permament Piering System" No date. Brochure-The Perma Jack System-#4 Perma-Jack System being Installed.-No date, (See above-U.S. Pat. No. 3,902,326). Brochure-Atlas Piers-Copyright 1986-Specifications List.
Patent History
Patent number: D329728
Type: Grant
Filed: Feb 28, 1990
Date of Patent: Sep 22, 1992
Assignee: Central States Waterproofing of Missouri, Inc. (St. Louis, MO)
Inventor: Francis P. Ladek (St. Louis, MO)
Primary Examiner: Wallace R. Burke
Assistant Examiner: H. Baynham
Attorney: Paul M. Denk
Application Number: 7/486,718
Type: Grant
Filed: Feb 28, 1990
Date of Patent: Sep 22, 1992
Assignee: Central States Waterproofing of Missouri, Inc. (St. Louis, MO)
Inventor: Francis P. Ladek (St. Louis, MO)
Primary Examiner: Wallace R. Burke
Assistant Examiner: H. Baynham
Attorney: Paul M. Denk
Application Number: 7/486,718
Classifications
Current U.S. Class:
Conveying, Lifting, Or Transferring Article (D34/28)