Search results
Results from the WOW.Com Content Network
The first self-propelled sweeper vehicle patented in the US, driven by a steam engine and intended for cleaning railroad tracks, was patented in 1868, patent No. 79606. Eureka C. Bowne was the first known woman to get a patent for a street sweeper, in 1879, patent No. 222447.
A few months later, on May 12, 1896, he patented a dust-proof collection bag for the street sweeper (US Patent #560,154). [ 4 ] Although little information is available about his life, we do know that funding for the production for his sweeper was provided by George M. Hallstead and Plummer S. Page. [ 5 ] The production took place in Scranton ...
The first invention credited to Parpart is a street sweeper designed to automate the process of cleaning city streets. Parpart filed two patents for this invention (No. 649,609 [32] in 1899 and no. 762,241 [33] in 1901), both of which listed Hiram D. Layman as co-inventor despite his being only an investor.
Spangler first tested his invention in 1907. During the next year, he refined the vacuum numerous times, and on June 2, 1908, he received a patent for his sweeper. [1] [citation needed] He refined the patent several times from 1909 to 1913. [1] Spangler, with US$5,000 invested by a friend, formed the Electric Suction Sweeper Company. Ray Harned ...
By the 1970s, the company had become a notable player in the industry, selling nationally and worldwide. Drumm would obtain several more U.S. patents in the years to come, which included intellectual property for core mounting assemblies, sweeper brushes, rotary broom core assemblages, spiral brushes, and brush bristle units.
Stomach-churning emails show Planned Parenthood negotiating terms regarding the donation of aborted fetuses for medical research.. The emails discuss fetal tissue like any other commodity such as ...
The bike sweeper will clear debris from Charlotte’s bike lanes, which are out of the larger street sweepers’ reach. The event, ...
Language links are at the top of the page. Search. Search