Fluid reaction surfaces (i.e. – impellers) – Protective screen or guard – Water or marine propellers
Patent
1996-10-17
1998-11-10
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Protective screen or guard
Water or marine propellers
F04D 2970
Patent
active
058334360
ABSTRACT:
A slot structure for positioning fans in computers, office machines or electrical products. The slot structure includes a positioning slot with an elastic hook members at either side and a plurality of suspended elastic stop blocks at the corners. After the fan is inserted into the positioning slot and hooked by the hook members, the elastic stop blocks will urge upwardly against the fan to eliminate any clearance and secure the fan firmly in place.
REFERENCES:
patent: 2620127 (1952-12-01), Radcliffe
patent: 5391056 (1995-02-01), Wang
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