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US 4,660,794 AGranted
Ladder tray
OwnerWilliam B. Giveninventor
Life of this patent
Estimating the term…
Abstract
A work tray for mounting on hollow rung ladders. The tray has a single shaft which goes through one rung of the ladder. Lock means are provided to keep the tray from rotating or from pulling out of the rung. Angular adjustment means are provided so that the tray may be kept level when the ladder is used at different angles.
Claims1
A work tray for hollow rung ladders comprising:
- a. shaft having a longitudinally fluted portion,
- b. a tray attached to the shaft,
- c. a stabilizer block shaped to engage one of the side rails of a ladder,
- d. a fluted hole in the stabilizer block to slidably engage the fluted portion of the shaft to prevent rotation of the shaft and attached tray.
1 more element
Dependencies are inferred from the claim text.