(19)
(11) EP 0 128 680 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.03.1986 Bulletin 1986/12

(43) Date of publication A2:
19.12.1984 Bulletin 1984/51

(21) Application number: 84303403

(22) Date of filing: 18.05.1984
(84) Designated Contracting States:
CH DE FR GB IT LI NL

(30) Priority: 14.06.1983 US 504275

(71) Applicant: HOOVER UNIVERSAL, INC (a Michigan corporation)
 ()

(72) Inventor:
  • Hancock, William L.
     ()

   


(54) Welded wire grid unit for box spring assemblies


(57) A welded wire grid unit for use in a box spring assembly, the grid unit comprising a rectangular border wire formed of spring steel and a criss-cross network of straight wires encircled by the border wire and arranged in a supporting relation with the border wire. The wire components in the grid are proportional to improve the edge support for the border wire.






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