Method and apparatus for producing a ground covering from individual paving stones

Patent 4194853 Issued on March 25, 1980. Estimated Expiration Date:

April 4, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

568147

1543214

1710096

2184906

2292605

3427936

3825293

Tire manipulating apparatus Patent #: 4051966
Issued on: 10/04/1977
Inventor: Cotton

Inventors

Application

No. 05/893520 filed on 04/04/1978

US Classes:

404/73, Handling or treating preformed modular unit404/84.05, Automatic control404/99, Block laying414/429, Opposed horizontally reciprocable engaging elements414/452, Toggle-type operator52/749.13Masonry

Examiners

Primary: Byers, Nile C. Jr.

Attorney, Agent or Firm

Spencer & Kaye

International Classes

E01C 19/00 (20060101)
E01C 19/52 (20060101)

Foreign Application Priority Data

1977-04-06 DE

Abstract

A method of producing a ground covering from individual paving stones by arranging a group of individual paving stones in the form of a section of the ground covering to be produced, grasping the group by means of a lateral compressive force from two opposed sides leaving out the lower range of the paving stones in laid condition, hoisting and moving the group thus grasped to the place of laying, and depositing the group there. The vertical distribution of the compressive force is so selected that it is greater in the lower range of grasp than in the upper range of grasp.An apparatus for carrying out this method includes a laying vehicle which carries a gripping tongs, the gripping faces of which are movable at least vertically by a means of the laying vehicle and are formed by linings diverging from the bottom to the top.