Title: Electrothermally deformable levelling pad

Abstract: An electrothermally deformable levelling pad utilizable in padding, levelling or aligning girders, rails or any other constructional or structural elements. The levelling pad comprises at least one thermoplastic plate member and an electric heater for heating the thermoplastic plate member to soften or melt to cause the overall thickness of the pad to reduce to a value sufficient to bring an article or machine to a predetermined level. The plate member is made of a thermoplastic random-copolymerized polyester which comprises an acid component and a glycol component.

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Inventors: Furuishi, Haruhisa (Suita, JA)
Murata, Yoshihiro (Katano, JA)
Suzaki, Hidenori (Hirakata, JA)
Sumoto, Misao (Otsu, JA)
Imanaka, Hiroshi (Otsu, JA)

Application Number: 511472
Filing Date: 1974-10-01
Publication_date: 1976-02-03
Assignee: Matsushita Electric Industrial Co., Ltd. (BOTH OF, JA); Toyo Boseki Kabushiki Kaisha (BOTH OF, JA)
Primary Class(es): 219/528 219/213, 219/549, 238/283
Other Classes:
US Patent Ref:

2185692	Jan, 1940	McCleary	219/528.
2735926	Feb, 1956	Langlois	219/528.
2741692	Apr, 1956	Luke	219/528.
2938992	May, 1960	Crump	219/528.
3584198	Jun, 1971	Doi et al.	219/549.
3662951	May, 1972	Smith et al.	238/281.
3682846	Aug, 1972	Sano et al.	260/860.
3688984	Sep, 1972	Sonneville	238/349.
3745302	Jul, 1973	Bond	219/213.
3766146	Oct, 1973	Witsiepe	260/860.
3784520	Jan, 1974	Hoeschele	260/860.

Other Refs:
Primary Examiner: Mayewsky, Volodymyr Y.
Assistant Examiner:
Attorney: Wenderoth, Lind & Ponack