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. 07, 1993
Filed:
Oct. 09, 1992
Nakata Zoki Co., Ltd, , JP;
Abstract
An extrusion forming apparatus (1) has an extruder (2) which has a head main body part (6) with an extruder main body (5A, 5B) and a pair of movable heads (7) coupled to the head main body part (6), and a clamping machine (3) which clamps the head main body part (6) and the movable heads (7). The head main body part (6) is provided with a first stopping piece (41) projecting on the side surface thereof and having a first stopping surface (43) extending obliquely backward toward the side surface of the head main body part (6). The movable head (7) is also provided with a second stopping piece (42) projecting on the side surface thereof and having a second stopping surface (44). The clamping machine (3) includes a pushing piece (53) having a contact surface (54) abutting against the second stopping surface (44), and a clamp piece (55) capable of moving in and out toward the side surface of the head main body part (6) and abutting against and pressing the first stopping surface (43) by moving toward the side surface of the head main body part (6).