Electricity: electrical systems and devices – Discharging or preventing accumulation of electric charge – Structurally combined with building or vehicle
Patent
1985-12-16
1986-12-16
Hix, L. T.
Electricity: electrical systems and devices
Discharging or preventing accumulation of electric charge
Structurally combined with building or vehicle
244 1A, 411373, H05F 102
Patent
active
046301682
ABSTRACT:
A fastener (36,58) attaches a composite material external skin (2) of an aircraft structure to another structure (4). Fastener (36,58) has a metallic head (44,62) and shaft (38,60) and a dielectric cap (50,70) covering a top portion of head (44,62). Head (44,62) and cap (50,70) are received into a countersink hole (6) in skin (2). Cap (50,70) is resilient and fills gap (16) between the top portion of head (44,62) and the inner sidewalls of hole (6). Cap (50,70) forms, with skin (2), an aerodynamic surface which is sufficiently continuous to receive and maintain a crack-free coat of paint having a uniform thickness. The top (52) of cap (50) of internally wrenching fastener (36) is an integral layer of uniform thickness. The top (72) of cap (70) of fastener (58) includes a uniform layer covering the head's top surface around a tool receiving recess (66) and a body of material (74) filling recess (66) and positioned therein after structures (2,4) are attached.
REFERENCES:
patent: 2253264 (1941-08-01), Burleson
patent: 3122051 (1964-02-01), Greene
patent: 3425313 (1969-02-01), Villo
patent: 3470787 (1969-10-01), Mackie
patent: 3494243 (1970-02-01), Kleinhenn
patent: 3557654 (1971-01-01), Weidner, Jr.
patent: 3592100 (1971-07-01), Mackiewicz et al.
patent: 3618444 (1971-11-01), Kay et al.
patent: 3620119 (1971-11-01), King, Jr. et al.
patent: 3693495 (1972-09-01), Wagner
patent: 3885492 (1975-05-01), Gutshall
patent: 3897712 (1975-08-01), Black
patent: 3906308 (1975-09-01), Amason et al.
patent: 3989984 (1976-11-01), Amason et al.
patent: 4154138 (1979-05-01), Melone
patent: 4316690 (1982-02-01), Voller
patent: 4373842 (1983-02-01), Bettini et al.
patent: 4382049 (1983-05-01), Hofmeister et al.
patent: 4502092 (1985-02-01), Bannink, Jr. et al.
Hix L. T,.
Lee Douglas S.
Pauly Joan H.
The Boeing Company
LandOfFree
Lightning protection fastener does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lightning protection fastener, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lightning protection fastener will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-249231