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.

Date of Patent:
Feb. 23, 2021

Filed:

Jul. 09, 2018
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Tomoaki Kitano, Shiga, JP;

Hideji Kawarazaki, Osaka, JP;

Toshiaki Hirano, Shiga, JP;

Masayuki Miyahigashi, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 65/02 (2006.01); F16L 59/065 (2006.01); B29C 65/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 65/02 (2013.01); B29C 66/00145 (2013.01); B29C 66/474 (2013.01); F16L 59/065 (2013.01); B29L 2031/712 (2013.01); F25D 2201/14 (2013.01);
Abstract

A vacuum-sealing device includes external cylinder part (B) which includes a distal end face that is brought into airtight contact with an outer face of a container that is a vacuum-sealing target to cover an exhaust hole of the container, and includes body part (A) provided within external cylinder part (B) and movable forward and backward along an axial center of external cylinder part (B). The vacuum-sealing device further includes driver () that moves external cylinder part (B) and body part (A) forward and backward in the direction of extension of the axial center of external cylinder part (B), and heater () that heats distal end portion () of body part (A). Exhaust space () communicating with the distal end face of external cylinder part (B) is formed between an outer circumferential face of distal end portion () of body part (A) and an inner circumferential face of external cylinder part (B).


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