Outlet socket fitting for central vacuum-cleaning systems
United States Patent 3088484
US Patent References:
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Inventors:
Marsh, George W.
Publication Date:
05/07/1963
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Assignee:
Marsh, George W.
Primary Class:
137/360
Other Classes:
15/301, 55/DIG.008, 4/252.200, 285/368, 251/299, 55/DIG.003, 285/7
International Classes:
A47L5/38; F16K31/528; A47L5/22; F16K31/52
US Patent References:
1557509Sanitary tee
1717471Outlet fixture for pneumatic systems
1741899Combined eighth bend and clean-out pipe fitting
1853203Outlet box support
2481018Relief valve
2505376Vacuum relief valve
2725113Combined air conditioning and vacuum cleaning apparatus for buildings
2825921Central vacuum cleaning system
2851286Inlet valve assembly for central vacuum systems
2861586Connector for vacuum cleaners
3036814Inlet valve assembly