The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1987
Filed:
Nov. 18, 1985
Philip N Martin, Tulsa, OK (US);
Other;
Abstract
A transportable seismic energy source having a baseplate for contacting the earth, an upper master cylinder affixed at its lower end to the base plate and extending uprightly from it, a receiving cylinder of outside diameter less than the internal diameter of the master cylinder and supported coaxially within the upper portion of the master cylinder, the master cylinder and receiving cylinder being filled with liquid, a slug firing gun mounted to the master cylinder and arranged so that the gun muzzle extends coaxially and above the receiving cylinder. The internal diameter of the receiving cylinder being greater than the maximum diameter of a slug as distorted on impact with the liquid in the cylinders so that when a slug is fired from the muzzle it contacts the liquid in the cylinders and passes it downwardly through the receiving cylinder, the energy of impact of the slug gun muzzle being transmitted to the liquid within the cylinders and from the cylinder baseplate to the earth for propagation in the earth. In a preferred embodiment the internal bore of the master cylinder is provided with serrations which impede the downward flow of fluid to more effectively couple the energy from the fluid to the cylinder and thus to the base plate.