US 9,458,859 C1 (13,063rd)
Ceiling fan system with brushless motor
Richard W. Fizer, Lexington, KY (US)
Filed by DELTA T CORPORATION, Lexington, KY (US)
Assigned to Delta T, LLC
Reexamination Request No. 90/019,370, Jan. 9, 2024.
Reexamination Certificate for Patent 9,458,859, issued Oct. 4, 2016, Appl. No. 13/942,164, Jul. 15, 2013.
Application 90/019,370 is a division of application No. 12/399,428, filed on Mar. 6, 2009, granted, now 8,672,649.
Application 90/019,370 is a division of application No. 12/249,086, filed on Oct. 10, 2008, granted, now 8,147,182.
Claims priority of provisional application 61/034,254, filed on Mar. 6, 2008.
Claims priority of provisional application 60/978,860, filed on Oct. 10, 2007.
Ex Parte Reexamination Certificate issued on Oct. 21, 2025.
Int. Cl. F04D 29/64 (2006.01); F04D 25/06 (2006.01); F04D 25/08 (2006.01); F04D 27/00 (2006.01); F04D 29/32 (2006.01); F04D 29/34 (2006.01); F04D 29/38 (2006.01); F04D 29/58 (2006.01); F04D 29/60 (2006.01); F24F 11/77 (2018.01); F24F 11/52 (2018.01)
CPC F04D 25/088 (2013.01) [F04D 25/068 (2013.01); F04D 27/004 (2013.01); F04D 27/008 (2013.01); F04D 29/329 (2013.01); F04D 29/34 (2013.01); F04D 29/384 (2013.01); F04D 29/5806 (2013.01); F04D 29/601 (2013.01); F04D 29/646 (2013.01); F24F 11/77 (2018.01); F24F 11/52 (2018.01)]
OG exemplary drawing
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
The patentability of claims 1-18 is confirmed.
New claims 19 and 20 are added and determined to be patentable.
1. A fan system, wherein the fan system comprises: (a) a hub, wherein the hub is configured to rotate about an axis, wherein the hub has a plurality of outwardly extending blade mounting members; (b) a plurality of fan blades mounted to the blade mounting members of the hub; (c) a drive system in communication with the hub, wherein the drive system is operable to rotate the hub; and (d) a plurality of fan blade retainers, wherein each of the fan blade retainers is secured to corresponding first and second blade mounting members of the hub, wherein each of the fan blade retainers is further secured to corresponding first and second fan blades associated with the corresponding first and second blade mounting members, and further includes an elongated portion extending radially along at least one of the first and second fan blades.
[ 19. The fan system of claim 1, wherein the elongated portion of each of the fan blade retainers extends only along a top of a respective one of the plurality of fan blades.]
[ 20. The fan system of claim 3, wherein at least a part of each second portion of the plurality of fan blade retainers is sandwiched between a corresponding first portion of an adjacent one of the plurality of fan blade retainers and at least one of the plurality of fan blades.]