Fan shroud structure reinforcement to reduce or eliminate...

Details Fan shroud structure reinforcement to reduce or eliminate... Fan shroud structure reinforcement to reduce or eliminate...

2007-12-18

2007-12-18

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

C416S189000

Reexamination Certificate

active

11415294

ABSTRACT:
A fan shroud structure (10) is constructed and arranged to carry a fan and motor. The fan shroud structure includes a base (12) and an annular rim (24) extending from the base. The rim defines a generally central opening (26) sized to accommodate blades of a fan. Motor mounting structure (28) is coupled with the rim (24) and is disposed generally adjacent to the central opening (26). The motor mounting structure (28) is constructed and arranged to support a motor for driving a fan. The fan shroud structure (10) includes a first pair of opposing sides (14, 16) and a second pair of opposing sides (17, 18) coupled to the base to form a box-like configuration defining a perimeter of the fan shroud structure raised with respect to the base such that the sides are discontinuous with respect to the base (12) to shift resonance of the shroud structure.

REFERENCES:
patent: 6106228 (2000-08-01), Bartlett
patent: 6123051 (2000-09-01), Kubina et al.
patent: 6309176 (2001-10-01), Periyathamby et al.
patent: 6883589 (2005-04-01), Ozawa et al.

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