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:
Mar. 23, 1976
Filed:
Dec. 11, 1974
Applicant:
Inventors:
Masaki Miura, Katsuta, JA;
Ken Ichiryu, Mito, JA;
Masayuki Shigeta, Katsuta, JA;
Tadashi Shibata, Ibaraki, JA;
Assignee:
Hitachi, Ltd., , JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187 / ;
Abstract
A sound preventive device for use in an elevator including: a skirt extending from the lower edge of the sill of a cage of an elevator and having a length greater than the difference between the height of the floor and the height of the cage and a width substantially the same as that of the cage; and guide plates which extend upwards and downwards respectively from the rear plate of the cage, the aforesaid guide plates having widths substantially the same as that of the rear plate, whereby abrupt changes in air developing above and below the cage may be minimized by means of the skirt and guide plates.