You can freely build on How Early Washing Machines Moved Clothes

What this patent covers

Based on its title, 'Drive mechanism for washing-machines,' this patent likely details the mechanical system responsible for moving the washing machine's components, such as an agitator or the wash tub itself. In the early 20th century, these mechanisms typically involved a series of gears, pulleys, and linkages to convert a rotating input (from an electric motor or manual crank) into the oscillating or rotating motion needed to clean clothes. Without specific claim text, the exact configuration of these elements cannot be described, but it would aim to provide a robust and efficient way to agitate laundry.

What is now free to use

All 0 claims of US 966677 are in the public domain. Specifically:

The 0 dependent claims add narrowing limitations and are also free.

What is NOT covered

Patent expiry frees this specific invention. Separately-patented improvements made after expiry may still be protected.

• Does not cover the specific design of the washing tub or the agitator that directly touches the clothes.

• Does not cover the methods for heating water or adding soap to the washing machine.

• Does not cover any electrical control systems, as the patent focuses solely on mechanical power transfer.

• Does not cover drying functions or spin cycles, which are separate mechanisms.

Who is building on this today

While the original assignee, Hurley Machine Co., is no longer a dominant player in modern appliance manufacturing, the fundamental principles of mechanical drive systems for washing machines are still employed. Companies like Whirlpool, LG, Samsung, and Bosch continue to innovate in washing machine drive technologies, though their systems are far more advanced and electronically controlled.

Products built on expired version of this technology

How to cite this patent in your documentation

HURLEY MACHINE Co. US Patent 966677. Drive mechanism for washing-machines.. Granted 1910, expired 1929. Now in the public domain.

Note: This is a convenience citation. Consult a patent attorney for formal freedom-to-operate analysis.

PatentBrief is an educational resource and does not provide legal advice. Patent expiration information is derived from USPTO records and may not reflect continuation patents, divisional filings, or separately-patented improvements. For commercial use or production decisions, obtain a formal freedom-to-operate (FTO) opinion from a registered patent attorney.