...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4651971 | Direct acting valve assembly A direct acting valve assembly including a valve body and a guide tube attached thereto. An insert is secured within the guide tube and includes a central aperture and at least one filtering aperture. The valve body includes an annular surface between an ... | 03/24/1987 |
| 4558844 | Direct acting valve assembly A direct acting valve assembly including a valve body and a guide tube attached thereto. An insert is secured within the guide tube and includes an upraised valve seat surrounding a central aperture. The valve body includes an annular surface between an a... | 12/17/1985 |