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US 5,435,679 AGranted
Piercing grommet having detachable tool for installation
AssigneeThe Boeing Company
InventorDavid M. Barry
Life of this patent
Estimating the term…
Abstract
A piercing grommet which pierces an insulation blanket. A snap-on retainer slides over a spiked portion of the piercing grommet and snaps in place adjacent the bottom of the spike. The spike can then be removed. A seal is created by contact adhesive between the insulation blanket and the grommet in order to prevent moisture ingress.
Claims2
A piercing grommet assembly comprising in combination:
- a clamp-on mounting bracket for aircraft stringer said clamp-on bracket having a projection portion;
- a standoff disk support member having a blanket piercing portion;
- said standoff disk support member seated on said projection portion of said clamp-on mounting bracket;
- and,
- an apertured disk member coaxially disposed about said tool piercing portion and snap-fitted down onto said standoff disk support member.
2 more elements
A piercing grommet assembly for supporting an insulation blanket in standoff relationship with respect to an aircraft structure, said piercing grommet assembly comprising:
- a standoff disk support member having a blanket piercing portion, said standoff disk support member attached to said aircraft structure;
- said standoff disk support member having a surface coating of a pressure sensitive adhesive;
- said insulation blanket having a major surface area disposed against said surface coating of a pressure sensitive adhesive;
- an apertured disk member coaxially disposed about said tool piercing portion;
- said apertured disk member having a surface coating of a pressure sensitive adhesive;
- and,
- said insulation blanket having a further major surface area disposed against said surface coating of a pressure sensitive adhesive of said apertured disk member.
4 more elements
Dependencies are inferred from the claim text.