U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Portable leaf cleaner

Patent 4263745 Issued on April 28, 1981. Estimated Expiration Date: Icon_subject September 17, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3128492

3505701

3512202

3551932

3892004

Plant care device Patent #: 4126962
Issued on: 11/28/1978
Inventor: Polcaro

Inventor

Application

No. 06/075850 filed on 09/17/1979

US Classes:

47/1.5, PLANT SURFACE CONTACT MATERIAL APPLICATOR15/102, Sheet, bar, and plate cleaners15/23Rotary cylinder

Examiners

Primary: Bagwill, Robert E.

Attorney, Agent or Firm

International Classes

A01M 21/00 (20060101)
A01M 21/04 (20060101)
B08B 1/04 (20060101)

Abstract

A portable leaf cleaner is disclosed into which plant leaves to be cleaned or otherwise treated are introduced between rolls which apply a cleaning fluid to the leaves. Means are provided for controlling the flow of fluid to the rolls. One of the rolls is driven by a reversing motor while the other is frictionally driven by the first roll. The other roll is resiliently urged against the first roll, so as to be movable relatively to the first roll, to thereby prevent breakage or damage to the leaves as they pass between the rolls. The reversing motor is energized by a battery or cell, and the device is supported by a handle which is adapted to be grasped in one hand and has means associated therewith for controlling an electrical circuit which energizes the motor.

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