Apparel – Guard or protector – For wearer's head
Patent
1977-08-12
1979-10-16
Nerbun, Peter
Apparel
Guard or protector
For wearer's head
2 6, A42B 300, A61F 904
Patent
active
041707923
ABSTRACT:
A positioning device, particularly applicable to positioning a visor on a helmet comprising a clutch output member, a datum member, and a clutch input member, the output member constrained to move along a particular path with respect to the datum member, usually an arcuate path, and the output member containing the input member and detent members at either side of the input member which lock the output member to the datum member until released only by movement of the input member which drives the output member to another locked position.
REFERENCES:
patent: 2583428 (1952-01-01), Houplain
patent: 2597798 (1952-05-01), Houplain
patent: 3636565 (1972-01-01), Luisada et al.
Nerbun Peter
The Secretary of State for Defence in Her Britannic Majesty's Go
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