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:
Jan. 16, 1996
Filed:
Apr. 06, 1994
Hachiro Ikeda, Tagajo, JP;
Noriaki Miyamoto, Tagajo, JP;
Ryoei Umeda, Tokyo, JP;
Hidenori Yasu, Kadoma, JP;
Mitsuo Fukukawa, Tokyo, JP;
Yukiei Masuyama, Tokyo, JP;
Shoji Kinoshita, Kounosu, JP;
Yukio Takagi, Tokyo, JP;
Tomohiro Gocho, Omiya, JP;
Fumio Goto, Gunma, JP;
Akio Ishii, Gunma, JP;
Tetsuo Ogawa, Gunma, JP;
Yoshun Hasegawa, Yokohama, JP;
Keitaro Hironaka, Yokohama, JP;
Yasuhiro Ogoshi, Yokohama, JP;
Niigata Engineering Co., Ltd., Tokyo, JP;
The Nippon Road Co., Ltd., Tokyo, JP;
Abstract
Efficient paving operation requires that the levelling operation of asphalt be carried out accurately along a reference line which follows a given direction along a roadside. A simple and effective automatic control device for controlling the steering direction in conjunction with adjustments of the screed for an asphalt finisher (shortened to finisher) is presented. The control device automatically regulates the extension or retraction of the screeds on both sides of the finisher in reference to a visual display of the reference line following some objects along the roadside. The visual detection system of control is simple and economical and provides an accurate control over the direction of paving.