公开(公告)号：US3541192A

公开(公告)日：1970-11-17

申请号：US3541192D

申请日：1967-05-02

Applicant: MATTEL INC

Inventor： SHAPERO WALLACE H ,  NUTTALL FLEET E

IPC: A63H9/00 ,  B29C35/02 ,  B29C44/04 ,  B29D27/04

CPC classification number: B29C44/04 ,  A63H9/00 ,  B29C35/02 ,  B29K2105/043 ,  B29L2031/5218 ,  Y10S264/14 ,  Y10S264/60 ,  Y10T428/249961

公开(公告)号：US3667763A

公开(公告)日：1972-06-06

申请号：US3667763D

申请日：1970-10-01

Applicant: MATTEL INC

Inventor： SUMMERFIELD WILLIAM F ,  NUTTALL FLEET E

IPC: G11B33/06 ,  G11B3/00 ,  G11B3/10 ,  G11B17/06

CPC classification number: G11B33/06

Abstract: A TOY PHONOGRAPH WHICH INCLUDES A SPEAKER DIAPHRAGM THAT HAS A RECORD GROOVE FORMED IN IT SO THAT A FIRMLY SUPPORTED STYLUS MOVING ALONG THE GROOVE CAUSES THE DIAPHRAGM TO VIBRATE AND PRODUCE SOUNDS OF SUBSTANTIAL VOLUME. THE GROOVE IS FORMED IN A SPIRAL AND CAN BE PLAYED BY ANY ONE OF SEVERAL STYLUSES LOCATED ALONG A CIRCLE ON A ROTATABLE HEAD. THE HEAD SLOWLY ROTATES AS THE STYLUSES MOVE ALONG THE GROOVE, AND THE STYLUSES ARE SPACED SO THAT AS OEN STYLUS IS LEAVING THE END OF THE SPIRAL GROOVE, WHICH LIES NEAR THE CENTER OF THE RECORD, THE NEXT SUCCESSIVE STYLUS IS ENTERING THE BEGINNING OF THE GROOVE AT THE PERIPHERY OF THE RECORD. THE DIAPHRAGM IS CONTAINED IN A WHEEL-SHAPED HOUSING WHICH IS PIVOTALLY MOUNTED ON A HANDLE THAT A CHILD CAN USE TO PUSH THE WHEEL ALONG THE GROUND. THE DIAPHRAGM IS FIXED TO THE INSIDE OF THE WHEEL HOUSING, AND THE STYLUS-HOLDING HEAD IS FIXED TO AND END OF THE HANDLE WHICH PROTRUDES INTO THE HOUSING.

公开(公告)号：US3642965A

公开(公告)日：1972-02-15

申请号：US3642965D

申请日：1968-12-23

Applicant: MATTEL INC

Inventor： NUTTALL FLEET E ,  RYAN JOHN W

IPC: B29C33/50 ,  B29C37/00 ,  B29C44/00 ,  B29C44/04 ,  B29C44/58 ,  B29C7/00 ,  B29D27/04

CPC classification number: B29C67/20 ,  B29C33/50 ,  B29C37/0003 ,  B29C44/04 ,  B29C44/582 ,  B29K2105/04 ,  B29L2031/5218 ,  Y10S264/14 ,  Y10S264/50 ,  Y10S264/60 ,  Y10T428/249976 ,  Y10T428/249988

Abstract: A method for removing foamed plastic bodies from the molds in which they are formed comprising opening a portion of the mold to allow the product therein to be affected by external pressure, either placing the mold in a closed chamber or attaching it externally to such chamber, pressurizing said chamber to the point where the foamed product in said mold is sufficiently compressed to remove it from the mold, and subsequently withdrawing the body from the mold within the pressure chamber where, upon the release of the pressure within the chamber, the body fully expands to its formed shape.