Drain auger
AssigneeNanjing Chervon Industry Co., Ltd.
InventorTongle Huo
Life of this patent
Estimating the term…
Abstract
A drain auger includes a drum, a motor, and a cable. The drum forms an accommodation space. The motor drives the drum to rotate. The cable is at least partially stored in the accommodation space. The total length of the extended cable has a cable length L, the drum has an inner bottom surface forming the accommodation space, the diameter of the inner bottom surface is the first diameter D, and, when the cable length L and the first diameter D are both measured in centimeters, the ratio L/D2 of the cable length L to the square of the first diameter D is greater than or equal to 3.5.
Claims20
A drain auger, comprising:
- a drum forming an accommodation space;
- a motor that drives the drum to rotate;
- and
- a cable at least partially stored in the accommodation space;
- wherein a total length of the extended cable has a cable length L, the drum has an inner bottom surface forming the accommodation space, a diameter of the inner bottom surface is a first diameter D, and when the cable length L and the first diameter D are both measured in centimeters, a ratio L/D2 of the cable length L to a square of the first diameter D is greater than or equal to 3.5.
A drain auger, comprising:
- a drum forming an accommodation space;
- a motor that drives the drum to rotate;
- a cable at least partially stored in the accommodation space;
- a handle connected to the drum and used for a user to hold;
- a feeding mechanism connected to a front of the drum and used for feeding or retracting the cable;
- and
- an operating member connected to the feeding mechanism and used for changing a state in which the feeding mechanism clamps the cable;
- wherein a total length of the extended cable has a cable length L, the drum has an inner bottom surface forming the accommodation space, an area of the inner bottom surface is S, and, when the cable length L is measured in centimeters and the area S of the inner bottom surface is measured in square centimeters, a ratio L/S of the total length to the area of the inner bottom surface is greater than or equal to 4.4.
Dependencies are inferred from the claim text.