Matches 101 - 150 out of 155 < 1 2 3 4 >


Match Document Document Title
4841945 Automatic tennis ball feeding and serving apparatus  
An automatic tennis ball feeding and serving apparatus comprises a ball hopper, wheel-type tennis ball projector and conveyor for transporting tennis balls from the hopper to the ball projector. A...
4823763 Ball projecting apparatus  
A ball throwing machine which includes a pair of rotary discs supported for rotation and angularly opposed relation so as to laterally engage a ball and effect propulsion thereof is disclosed. A...
4815438 Accelerator for paired masses  
A method and apparatus has two stages of acceleration establishing levels of kinetic energy in paired bodies contributing to a total system mass that is to be accelerated in a given time profile....
4807886 Amusement game with dispensed targets  
A Gattling-gun-like amusement game provides for manual control of the rate of firing and dispensing of dislodged targets as prizes to the player. The gun fires balls at round targets supported on...
4747390 Target projector  
A target projector for projecting a disc-like target adapted for operation by electric power, the projector includes a base with a drive shaft rotatably mounted thereon, an electric motor is...
4705014 Variable speed single-wheeled ball propelling machine  
An improved apparatus for propelling balls such as softballs and baseballs with accurate and predetermined spins, speeds and placements, which includes a spinning wheel opposed by a guide having...
4664094 Apparatus for throwing objects  
In a training device for sports equipment, especially for serving tennis balls, the balls are supplied from a storage container through a laterally pivotable charging opening to a ball supply...
4632086 Rotor for centrifugal launching device  
A rotor for a centrifugal launching device supported for rotation about an axis and including a cylindrical barrel. The axis of rotation and longitudinal axis of the barrel define two straight...
4632088 Ball throwing apparatus  
A ball throwing apparatus has two opposed drive wheels, one on each side of an open-ended barrel. The peripheries of both drive wheels extend into the barrel in opposing fashion, the wheels being...
4607605 Projectile distributor for centrifugal launcher  
A distributor for feeding projectiles to the trajectory of a projectile engaging vane carried by a cylindrical gun in a centrifugal launcher of the type including a rotor having an open central...
4471746 Ball throwing apparatus  
A ball throwing apparatus for practicing baseball, tennis and the like and including a rotating body with a ball receiving port on one side and a ball projecting port on the other side, and a ball...
4463745 Device for launching a projectile  
The invention relates to a device for ejecting a projectile having a rotatably driven carrier on which at least one radially arranged guide tube is attached and into which a feed path by means of...
4445436 Projectile for centrifugal launching device  
A projectile for a gun-vane centrifugal launching device is disclosed, of the type with an ogival head, a body and a tail of decreasing section. The body is cylindrical and the weight of the tail...
4316611 Competition game machine  
A game machine which can be played by two or more players includes an elongated box-like housing in which a game ball can be inserted, the housing including elongated side members with transparent...
4264045 Despinning method and apparatus  
In a method for changing the spin of bodies released from an aggregate, the bodies are connected by straps or bars which serve as tension or compression members. Spin of the connected bodies...
4262648 Softball pitching machine  
A machine is provided for pitching one or more balls at selected intervals by selectively connecting a clutch mechanism to a pitching arm.
4201181 Trap loader safety assembly  
A trap loader safety assembly includes a trap target throwing machine positioned in a suitable pit having a predetermined safe position for a person loading the machine with targets. Normally the...
4014310 Transportable target throwing apparatus  
Apparatus for the throwing of clay pigeon type targets, including a throwing arm and an automatic target loading device therefor, is mounted on a trailer chassis so as to be transportable. The...
3995859 Competitive board game and mechanical energy-storing catch-and-propel mechanism usable therewith  
A competitive board game wherein two players propel a ball back and forth between them, each attempting to get the ball past his opponent. Each player has a mechanical energy-storing...
3992006 Competitive ball game apparatus  
A competitive game apparatus of the type resembling a table tennis game including a table having opposed playing areas divided by a transverse barrier or "net". The opposed playing areas slope...
3989206 Rotating launch device for a remotely piloted aircraft  
A method and apparatus for launching a remotely piloted aircraft is disclosed wherein the aircraft, is revolved about a fixed pivot point until a pretermined speed is reached whereupon the vehicle...
3940137 Pole vaulting game apparatus  
A pole vaulting game apparatus consisting of a carriage movable along a track by a manually operable device, a flexible pole carried pivotally by the carriage and having a piece simulating the...
3878827 TABLE TENNIS BALL SERVING APPARATUS  
A table tennis ball serving apparatus having a hopper which feeds tennis balls at any desired rate to a nozzle where the balls are deposited on a pad on the opposite side of which is a rotating...
3876201 Apparatus for projecting hockey pucks  
An apparatus for projecting hockey pucks from a puck storage chamber. A sweeper attached to the end of a rod is rotatable coupled to a support and driven by a motor or hand crank through the rod....
3870304 INFLATABLE STRIKING MEMBER AND PROJECTILE DISPENSING RECEPTACLE  
A game device formed of inflatable plastic or the like having a projectile receiving receptacle supported by an upper surface of the structure, the parts being so arranged and constructed that any...
3822688 HOCKEY PUCK SHOOTING MACHINE  
Apparatus for automatically ejecting a succession of hockey pucks in timed sequence and at considerable velocity as an aid in training players in blocking the pucks. The apparatus includes a...
3817235 HOCKEY PUCK PROJECTOR  
In practice apparatus for shooting hockey pucks the puck rides on the lower of two continuously rotating coaxial disks, whose speeds are controlled, and which are held spaced apart by a spring....
3800775 TARGET THROWING ARM WITH TARGET DETENT MECHANISM  
An eccentrically disposed target on a rotating platform is released by a mechanism which includes a detent carried by the platform and engaging a forward edge of the target whereby the target is...
3613655 CENTRIFUGAL GUN  
A centrifugal gun for discharging projectiles at very rapid velocities which gun includes a rotatable impeller having a center of rotation and a peripheral path of movement and having a continuous...
3603301 TARGET TRAP  
In the target throwing machine disclosed herein, the gate which controls the release of a target from a rotary throwing arm is normally biased towards a target releasing position and is...
3602208 DEVICE FOR PROJECTING PROJECTILES AT CYCLICALLY VARYING AZIMUTH AND ALTITUDES  
Balls are thrown from a rotating spiral-shaped guideway by the action of the centrifugal force through an outlet which is opened for the passage of an ejected ball. The speed of rotation, the...
3588110 MOVING TARGET AND ROTATING CENTRIFUGAL PROJECTOR  
3585978 CENTRIFUGALLY OPERATED BALL PROJECTING DEVICE  
Apparatus for throwing tennis balls or the like comprises a barrel rotatable about a horizontal axis which intersects the barrel axis. The barrel has an inlet whose center is located on the...
3568653 OSCILLATING MECHANISM FOR TENNIS BALL THROWING MACHINE  
A ball throwing machine having a two-section support including a fixed lower section and a movable upper section which carries the ball throwing mechanism. A motor-driven cam follower assembly is...
3566852 SPRING-TYPE END-WEIGHTED ROPE REEL CHAFF DISPENSER  
Reellike compartments stacked on a common axis. A steel spring is seated in archimedian spiral groove in the discs of each reel and forms a ramp along which a series of subassemblies is installed....
3552900 CENTRIFUGAL TRAPSHOOTING DEVICE  
3550938 PROJECTILE THROWING DEVICE  
3548801 GUN WITH VARIABLE FIRING FREQUENCY  
3410258 Centrifugal ball propelling device  
3404669 Missiles and discharge apparatus therefor  
3399660 Ball throwing machine having two rotatable discs with converging and diverging interstices  
3306613 Baseball batting practice range with ball return means  
3304928 Rotary trap magazine with two-stage target feed  
3299692 Velocity measuring and segregating device for propelled articles  
3219346 Pin elevator utilizing centrifugal force  
3216423 Apparatus for facilitating the birth of a child by centrifugal force  
3208748 Ball accelerator  
3177862 Armament and fire control system for helicopters  
3108582 Target throwing trap  
3091182 Centrifugal pumps  

Matches 101 - 150 out of 155 < 1 2 3 4 >