Observed arrival · 2026-11-10
Jetspray: one operator, one hose, the whole roof
A family tribute documents a patented, now-defunct machine for mixing, pumping and spraying roof coatings.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Roofing equipment and industrial design enthusiasts
- Worth noticing
- The patent’s central idea is a self-cleaning outlet screen, swept by agitator wipers to help keep the line from clogging.
Field notes
The page lays out the machine’s workflow from loading coating ingredients into the tank to controlling flow at the nozzle. Its listed features include a friction-clutch drive powered by a 5 HP Briggs & Stratton engine and a pressure-relief valve that returns material to the tank when the gun is released. The interactive reconstruction is described as based on the patent, brochures, and original shop notes.
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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