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Patent No. 6637447

Beerbrella

A small umbrella which may be removably attached to a beverage container in order to shade the beverage container from the direct rays of the sun.

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Class 81/30 - Straight crank arm


Subclass of Class 81 - Tools
Definition: Device wherein the driving element consists of a lever arm
No. of patents: 10
Last issue date: 05/13/2008


NumberTitleIssue Date
7371955Drum tuning key
A drum tuning key comprises a handle portion, a barrel portion defining an axis connected to the handle portion, the barrel portion having internal walls defining a cavity extending inwardly along the axis from an end of the barrel portion, the cavity being square i...
05/13/2008
7267034Telescopic driving tool
A telescopic driving tool comprises a handle having an axial hole at a front end thereof for receiving an engaging portion; an interior of an engaging portion being formed with a receiving space; a periphery of the engaging portion being formed with at least one sli...
09/11/2007
7107877Ratchet screwdriver
A ratchet screwdriver includes a main rod, a driven shaft, a ratchet mechanism, a socket connector, a control member, and a handle. Thus, the pawl member of the ratchet mechanism is pivoted to engage the ratchet teeth of the socket connector by rotation of the rotat...
09/19/2006
7089828Ratchet screwdriver with a quick retractable positioning joint
A ratchet screwdriver apparatus has a main body, a tubular member connected into the hole of the grip of the main body, a retractable element having an end extending through a through hole of the tubular member, and a positioning mechanism cooperatively connecting t...
08/15/2006
7069823Auxilary handle device for use with conventional handheld screwdrivers
An auxilary handle device for use with conventional handheld screwdrivers for applying additional torque and reducing muscle strain. The device includes a handle portion designed for being grasped by a human hand, and a coupling portion. The coupling portion selecti...
07/04/2006
7040197Opener providing large arm of force
An opener comprises a holding portion; a front end of the holding portion being installed with a screwing portion; a rear end of the holding portion being installed with a rotation portion; a front end of the screwing portion being installed with an opener head; a r...
05/09/2006
6427560Screwdriver device
A screwdriver device comprises a handle; a shank being rotatably mounted within the handle; a gear provided at the middle part on the shank; an operating lever extending from an upper plate and a lower plate formed therewith; a claw member provided at a s...
08/06/2002
4285375T-Bar ratcheting screwdriver
A screwdriver assembly includes a detachable handle, a fixed non-rotatable socket and a dual ratcheting socket extending transverse to the axis of the handle to the screwdriver with the dual sockets to obtain reversal of the screwdriver rotation....
08/25/1981
4206794Ratchet driver
A ratcheting screwdriver is provided having an integral handle, shank and blade with a receiver body intermediate the handle and blade removably receiving a ratchet drive handle....
06/10/1980
4102375Variable-length tool holder
A variable-length tool holder having a shank assembly including a hollow shank into which a shaft is adjustably inserted. Mounted on the shaft is a bit holder for retaining a tool bit on the shank assembly. The hollow shank forms a hole having a non-circu...
07/25/1978
 
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