U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

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.

Newsletter  PatentStorm News

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.

 

Class 74/51 - Crank and multiple pitmans


Subclass of Class 74 - Machine element or mechanism
Definition: Mechanisms, including a crank and more than one pitman.
No. of patents: 30
Last issue date: 07/27/2004


NumberTitleIssue Date
6766554Low acceleration symmetrical overlap wiper system
A windshield wiper drive imparts overlapping butterfly oscillation to a pair of spaced wiper shafts from a rotary drive member having a crank arm. A drive link is provided having first, second, and third connection points. The first connection point is adjacent one ...
07/27/2004
6691366Wiper system
The invention is based on a wiper system having a wiper motor, which via a motor crank, seated on a motor shaft, and two connecting rods drives a drive shaft of two windshields wipers, wherein a first connecting rod is pivotably connected directly to the ...
02/17/2004
6687947Wiper apparatus for motor vehicle
Reducing manufacturing costs and weight of the wiper apparatus for the motor vehicle. A pivot-side bracket having a pivot-side supporting surface is provided in a DR-side pivot holder, and a motor-side bracket having a motor-side supporting surface which ...
02/10/2004
6564419Wiper apparatus having four-bar linkage mechanism
A first lever is rotatably supported by a first support shaft connected to a vehicle body. The first lever has a first connection spaced away from the first support shaft. The first lever is reciprocally swung about the first support shaft by a driving fo...
05/20/2003
6334423Reciprocating piston engine and its link mechanism
A link mechanism for a reciprocating piston engine and the like is characterized in that: motions of a pair of cylinder-type pistons moving in opposite directions relative to each other are converted into an oscillating-type rotary motion through an oscil...
01/01/2002
6101664Drive device for at least two vehicle windscreen wipers
A drive mechanism for at least two windshield wipers of a vehicle, in particular of an automotive vehicle, with a driving motor (1) which includes a gear unit accommodated in a gear casing (2) which is closed by means of a cap and where, on the end of an ...
08/15/2000
5918504High torque motion converting and transmitting mechanism for an engine
A motion converting and transmitting mechanism included a reciprocal motion receiver, rotatable pinned to reciprocating arm. Rotatable pinned by a first pin to a first crank arm, and rotatable pinned by a second pin to a second crank arm. The first pin is...
07/06/1999
5706547Wiper device for vehicle
A wiper device for a vehicle includes a pair of left and right pivot brackets. The pivot brackets are pivotably attached to a vehicle body through a pair of left and right elastic members at left and right mounting points, respectively. The wiper device h...
01/13/1998
5465636Depressed park windshield wiper mechanism
A variable length crank arm in a windshield wiper system provides a depressed park position for an associated wiper blade when the direction of rotation of a drive motor is reversed. The crank arm relies on an eccentric driver to vary its length between a...
11/14/1995
5435232Multi-connecting rod reciprocating machine
A reciprocating piston (2) without any skirt is stabilized throughout its reciprocating motion by two or more connecting rods (4) connected between parallel spaced apart small ends (10) and parallel spaced apart crankshafts (5)....
07/25/1995
5359908System for reversibly transforming rotary motion into self-guided rectilinear motion
This system for reversibly transforming rotary motion into self-guided rectilinear motion has the characteristic of being achieved by symmetrically coupling at least two connecting rod-crank (108A, 108B, 107A, 107B) mechanisms, which are mutually associat...
11/01/1994
5309779Four dead centers crank mechanism
A crank mechanism for the transformation of a rotary movement of a crank supported in a crankcase into reciprocating movement of a piston in a cylinder, includes an open kinematic chain composed of three pivotally connected rods with the ends of the chain...
05/10/1994
5287728Power transmission device for press machine
A power transmission device for a press machine comprises a connection link connected to a crankshaft of the press machine and reciprocated in accordance with the rotation of the crankshaft, a first slider provided in a frame of the press machine so as to...
02/22/1994
5261286Modular-type wiper device
In connecting brackets using a frame member for a wiper device, the frame member being of linear structure providing sufficient mechanical intensity, the brackets are formed of die cast employing a general purpose die referenced to the axes of sleeves for...
11/16/1993
5253541Oil well pumping mechanism
A pumping mechanism particularly adapted for coupling a rotating prime mover to the sucker rod of an oil well lift pump is disclosed. A linkage assembly comprised of a V-shaped floating link and two grounded links provides straight line, reciprocating mot...
10/19/1993
5216927Connecting rod assembly for a dual crankshaft engine
An improved connecting rod assembly for a reciprocating internal combustion engine provides essentially simple harmonic linear motion of a piston, thereby eliminating forces and moments caused by non-simple harmonic linear motion of a piston. The connecti...
06/08/1993
5211065Apparatus for translating rotational motion to harmonic linear motion
An improved connecting rod assembly for a reciprocating internal combustion engine provides essentially simple harmonic linear motion of a piston, thereby eliminating forces and moments caused by non-simple harmonic linear motion of a piston. The connecti...
05/18/1993
5142729Windshield wiper apparatus including rise-up mechanism
A windshield wiper apparatus for a vehicle having a pivot lever, a linkage, and a rotating mechanism which is operative to move windshield wipers to and from storage and operating positions is provided. The pivot lever is secured at an end thereof to a pi...
09/01/1992
5093952Wiper device for wiping a vehicle windshield
A wiper device including a wiper motor and two wiper blades for wiping a vehicle windshield comprises a reciprocally actuating coupling rod connected to the wiper motor by a crank arm, a swinging lever which is connected to the coupling rod so as to swing...
03/10/1992
5088883Apparatus for lifting articles, especially packs, for forming dischargeable stacks
An apparatus has on each side of a conveyor (12) a rotating conveying segment (16, 17) for lifting packs from the conveyor (12) to form a stack (13) of packs (11). An oscillating holding segment (18, 19) oscillates about a common axis with each conveying ...
02/18/1992
5031265Wiper device for wiping a vehicle windshield
A wiper device including a wiper motor and two wiper blades for wiping a vehicle windshield comprises a reciprocally actuating coupling rod connected to the wiper motor by a crank arm, a swinging lever which is connected to the coupling rod so as to swing...
07/16/1991
5013175Windshield wiper anti-roll connector
A modified ball and socket connection is provided between links of a windshield wiper linkage system to resist rolling motion of the links with respect to the ball. A pin extends from the ball into sliding and rotating engagement with a slot formed adjace...
05/07/1991
5003832Motion transmitting mechanism
A motion transmitting mechanism for heat engines, refrigerating machines and heat pumps which are hermetically sealed or provided with rotary shaft seals and have reciprocating pistons connected to the motion transmitting mechanism (11) by means of connec...
04/02/1991
4843898Wiper linkage of cross arm type
A wiper linkage of the cross arm type is provided with a driving rod, an oscillation arm, two cross arms interlinking the driving rod and the oscillation arm, and restrictive alignment-free couplings connecting the cross arms between the driving rod and o...
07/04/1989
4787114Wiper driving system for vehicle
A wiper driving system for a vehicle having a wiper link reciprocated by a crank of a motor, and a lever for rotating a driving shaft of a wiper arm fixed to one end of the wiper link by rotating at a predetermined angle with the one end of the wiper link...
11/29/1988
4784347Sliding mechanism for spinning reel
The spinning reel of the present invention pertains to a sliding mechanism which allows for the reduction in size and weight of the reel and an increase in the reciprocation stroke of the spool without a decrease in the winding force of the reel on the tu...
11/15/1988
4586492Therapeutic bed
A therapeutic bed for treating medical complications of immobility oscillates in a circular rhythmic fashion, an upper frame being caused to pivot about its central longitudinal axis with respect to an intermediate frame which is caused to pivot about its...
05/06/1986
4532819Compact crank drive mechanism
A crankdrive mechanism for the two piston Stirling engine which greatly reduces engine size and weight without increasing complexity or decreasing mechanical efficiency. A single throw crankshaft is located between the cylinders and within the reciprocati...
08/06/1985
4300405Central guide means for the piston of a reciprocating piston machine
Central guide means for the piston rod of apparatus provided with a piston reciprocating in a cylinder and comprising a piston rod centrally journaled proximate its free end between two journaling points of a guide lever, the guide lever being essentially...
11/17/1981
4280367Gearless quadrophasor
A link and pivot mechanism is provided in which a pair of equal length links are connected pivotally at centers. The movement of these two links is scissor-like and is precisely controlled by the complete mechanism to produce four cycles per revolution. I...
07/28/1981
 
Sign InRegister
Username  
Password   
forgot password?