Title:
Damper assembly and blade construction
United States Patent 3084715
US Patent References:
Valve
- - 1834870

Deicing throttle
- - 2059687

Wiener vending machine and process
- - 2390277

Butterfly valve
- - 2488380

Damper
- - 2586997


Inventors:
Scharres, Harry J.
Publication Date:
04/09/1963
View Patent Images:
Assignee:
Scharres, Harry J.
Primary Class:
Other Classes:
D23/387, 251/306, 126/285R, 251/173, 454/336, 251/358, 251/308, 137/601.090, 415/147
International Classes:
F16K1/16
US Patent References:
2638309Coated valve member
2730326Valves for frost-proof yard hydrant
2780983Volume control for registers
2862685Flow control valves
2863630Valve construction
2884005Damper
2923523Butterfly valve
3017899Swivel units and damper assemblies using same
Foreign References:
SE83994A
AU126597B
DE656748C
DE1051444B