Chairs and seats – Armrest – Attachable to diverse chairs or seats; i.e. – portable
Patent
1990-07-02
1991-09-24
Cranmer, Laurie K.
Chairs and seats
Armrest
Attachable to diverse chairs or seats; i.e., portable
297115, 2481183, A47G 754
Patent
active
050509330
ABSTRACT:
A lightweight chair capable of stacking for storage purposes is provided with collapsible, adjustable arms. The arms can be raised to a desired height where they automatically lock in place for use. The lock assembly can be manually released in order to adjust the height of the arms and coil springs prevent the arms from inadvertently collapsing against the seat frame and possibly injuring the hand of the user.
REFERENCES:
patent: 388076 (1888-08-01), Schmidt
patent: 560547 (1896-05-01), Shotwell
patent: 2215758 (1940-09-01), Knight et al.
patent: 2552720 (1951-05-01), Keough
patent: 3854773 (1974-12-01), Thomas
patent: 3993351 (1976-11-01), Rodway
patent: 4186456 (1980-02-01), Huemphner
patent: 4489980 (1984-12-01), Friedrich
patent: 4489981 (1984-12-01), Goletski
Adams Bruce
Tornero Marta
Cranmer Laurie K.
Hope Cassandra L.
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