US 8,291,544 C1 (12,489th)
Mop with the function of dewatering the yarns by twisting in a single direction via an up-and-down linear motion
Yung-Hua Chen, Lujhou (TW); and Chin-Yang Shin, Gueishan Township, Taoyuan County (TW)
Filed by Yung-Hua Chen, Lujhou (TW); and Chin-Yang Shin, Gueishan Township, Taoyuan County (TW)
Assigned to TUO SHEN INTERNATIONAL CORPORATION LIMITED, Guishan Township, Taoyuan County (TW)
Reexamination Request No. 90/019,125, Oct. 19, 2022.
Reexamination Certificate for Patent 8,291,544, issued Oct. 23, 2012, Appl. No. 12/458,130, Jul. 1, 2009.
Ex Parte Reexamination Certificate issued on Jan. 25, 2024.
Int. Cl. A47L 13/142 (2006.01); A47L 13/58 (2006.01)
CPC A47L 13/142 (2013.01) [A47L 13/58 (2013.01)]
OG exemplary drawing
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
Claims 1 and 3 are determined to be patentable as amended.
Claims 2 and 5, dependent on an amended claim, are determined to be patentable.
Claims 4 and 6 were not reexamined.
1. A mop with the function of dewatering mop yarns by twisting in a single direction via an up-and-down linear motion, comprising:
a) an internal rod;
b) an external rod having a bottom portion in a telescopic connection with a top portion of the internal rod;
c) an engaging element positioned within the opening at the top of the internal rod [ rod, fixed by a fixing cap] ;
d) a driving element formed in an elongated shape and positioned within the external rod in such a way that the driving element is moved up and down synchronically with the external rod;
e) an actuating element positioned within the engaging element for accommodating the driving element, the engaging element being driven in a single direction [ includes a plurality of upward engaging teeth at the internal rim of the bottom of the engaging element while the bottom of the actuating element is provided with downward engaging teeth corresponding thereto, the actuating element is used to endure the driving element, ] when the actuating element is rotated by the driving element [ the rotation of the actuating element may cause a one-way rotation of the engaging element] ;
f) a disc body secured to the bottom thereof and having the mop yarns secured to the disc body;
g) a locking mechanism mounted on the external rod for locking the internal rod and the external rod in place or for unlocking them in a telescopic state,
wherein the actuating element is rotated by a linear motion of the driving element when the external rod is moved up-and-down; moreover, the engaging element is driven in rotation in a single direction, thereby creating a continuous rotation of the internal rod and the disc body in the same direction by the inertia force; as a result, a centrifugal force is produced to throw away the water absorbed in the mop yarns; and
the disc body cooperates with a dewatering basket rotatable within a bucket body, and wherein the dewatering basket is synchronically driven in rotation when the disc body is rotated by the internal rod; the mop yarns of the disc body are subject to the centrifugal force for dewatering, and the water removed is received within the bucket body.
3. The mop with the function of dewatering the yarns by twisting in a single direction via an up-and-down linear motion as recited in claim 1 wherein the engaging element is positioned at the top of the internal rod and fixed by an annular element and a fixing cap in place , and wherein the engaging element includes a plurality of upward engaging teeth at the internal rim of the bottom of the engaging element while the bottom of the actuating element is provided with downward engaging teeth corresponding thereto such that the rotation of the actuating element may cause a one-way rotation of the engaging element.