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Class 411/528 - Having longitudinal slit coincident with element axis


Subclass of Class 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
Definition: Subject matter wherein the material is provided with a long
No. of patents: 6
Last issue date: 04/18/2006


NumberTitleIssue Date
7031112Method of processing metal plate member of disc cartridge
A magnetic disc is housed for rotation in a flat casing having a metal shell. The magnetic disc is supported for rotation in the casing by a tubular shaft formed by barring of a metal blank for forming the metal shell. A hole is formed in a part of the metal blank w...
04/18/2006
6220806Twin impression push nut
A push nut fastener has first and second gripping openings. The first gripping opening is substantially circular and the second gripping opening is substantially rectangular. The substantially circular gripping opening has a plurality of blades or finger-...
04/24/2001
4580322Quick release fastener
A fastener has a receptacle (1) and a stud (10), the receptacle (1) having a pair of clip-like legs (6) the ends of which engage in grooves (16) in the shank of the stud (10). Each of the legs (6) has a plurality of formations (8) on its inner surface, th...
04/08/1986
4325178Screw anchoring device and method
A screw anchoring device and method for preassembled aperture sealing attachment with an apertured panel to confine insulating material foamed in place between the panel and a spaced wall. The screw anchoring device includes a flat portion having a centra...
04/20/1982
4286246Heat-up/cool-down bimetal timer for electric toaster
A heat-up/cool-down bimetal timer for an electric toaster wherein a unique screw fastener is provided for holding a calibration adjustment screw without being deformed during automated adjustment of the screw. The fastener is made from a blade of spring s...
08/25/1981
4201111Sheet metal fastener and method of making
A fastener including a sheet metal plate having a central stamped and apertured portion forming a screw thread, the aperture having a mean diameter sized approximately 5% less than the root diameter of a screw to be used therewith. The stamped portion is ...
05/06/1980
 
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