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:
Jun. 25, 1991
Filed:
Mar. 30, 1990
Patrick L O'Connor, Dryden, MI (US);
Other;
Abstract
A method and apparatus for repairing a utility cut in a section of pavement is provided. The method includes the steps of transferring broken pavement and underlying base material from the utility cut, mixing the transferred material with predetermined quantities of water and binder material to form a fluid, unshrinkable, settable filler mixture which is then reapplied to the utility cut. The filler mixture hardens to a set state in a short period of time. All of the operative elements of the apparatus for performing the method are arranged for use directly at the utility cut site. An optional crusher for reducing larger excavated particles to a smaller size and a heater for heating the filler material reapplied to the utility cut may also be employed. Further, the removed material may be separated according to size to exclude particles above a predetermined size. Finally, a suction pump may be employed to remove water from, below or above the filler material after the filler material has been applied to the utility cut.