Plastic screw socket Patent #: 4240323
ApplicationNo. 06/517772 filed on 07/27/1983
US Classes:411/80.1, Comprising a head and expandable portions spread by fastener (e.g., drywall anchor)411/15, HAVING SEPARATE EXPANDER MEANS411/182Nonmetallic nut, resiliently deformed during assembly
ExaminersPrimary: Dorner, Kenneth J.
Assistant: Wilson, Neill R.
Attorney, Agent or Firm
International ClassesF16B 21/08 (20060101)
F16B 21/00 (20060101)
F16B 37/04 (20060101)
F16B 5/06 (20060101)
Foreign Application Priority Data1982-10-12 JP
AbstractA plastic screw anchor having legs each formed with a recess which provides the leg with good flexibility whereby the legs can easily deform during the insertion thereof into an aperture of a supporting plate and also provides a strong grip between the screw anchor and the supporting plate. A wing integrally formed on each leg prevents the screw anchor from coming out of the aperture after having once been inserted therein.
Field of SearchHAVING SEPARATE EXPANDER MEANS
Frangibly connected expander
Including sleeve and distinct tapered expander (e.g., anchor bolt type)
Folded blank type
Means to engage extends through aperture
Means to engage grasps an edge of substructure
And has projection contacting periphery of aperture