|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||267/111 ; 297/452 ; 29/460|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 22 인용 특허 : 1|
The seating spring assembly includes a series of elongate sinuous spring wires with each of the wires touching each of the adjacent spring wires at frequent intervals along their length. Frangible welds, in the form of spot welding, are provided at spaced apart touching locations along the lengths of the wires to temporarily secure the adjacent spring wires together. A sleevelike plastic coating surrounds the wires and the frangible welds are broken when the seat is occupied by a person so that the plastic coating then constitutes the sole element holdin...
A seating spring assembly comprising (A) a series of elongate sinuous spring wires, each of said spring wires touching each of its adjacent spring wires at frequent intervals along their lengths, (B) frangible weld means provided at substantially the middle and at spaced apart additional touching locations intermediate opposite ends of adjacent spring wires, said frangible weld means temporarily securing together the touching locations of adjacent spring wires, and (C) a sleevelike plastic coating surrounding said spring wires and said frangible weld mea...