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:
Apr. 02, 2002
Filed:
Oct. 13, 1999
Yasushi Ochi, Osaka, JP;
Oriental Sangyo, Ltd., Osaka, JP;
Abstract
An amusement system for infants is provided which gives a player a special bodily sensation that cannot be experienced in daily life. The amusement system comprises: a main body ( ) including a mattress ( ) of a generally flat rectangular solid shape housed in a frame ( ), and pressing means ( ) for externally pressing the mattress ( ); and an enclosure ( ) surrounding the frame ( ). The mattress ( ) comprises a bag ( ) formed of a transparent flexible urethane sheet, and a liquid component including differently colored water and oil filled in the bag ( ). The pressing means ( ) includes a driver ( ) incorporating a hydraulic cylinder, and a press plate ( ) connected to a piston rod of the hydraulic cylinder. The press plate ( ) is pivoted by the operation of the hydraulic cylinder to press a side face of the mattress ( ) from the outside toward the inside, whereby the upper surface of the mattress ( ) is waved.