Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
235 words
A printing device for printing time related information on moving objects comprising a hollow drum; a shaft mounting said drum for rotation about its axis, means on the shaft for biasing said drum to a preselected at rest position; means on the outer surface of the drum for frictionally contacting a moving object whereby said drum is rotated from said at rest position as said object moves relative to the position of the axis of the drum; a stationary printing means disposed on the drum surface; at least one movable printing means mounted on said drum surface and related to said stationary printing means; means contained in said hollow drum for moving said movable printing means and including an electric motor mounted in said drum, a gear train driven by said motor and driving said movable printing means; means for connecting said motor to a source of power; said means including an insulating disc fixed to said shaft, said disc having a pair of concentric annular electrically conductive bands carried thereon, a pair of electrically conductive brushes mounted on said drum and movable therewith in conductive contact with said conductive bands, and first electrically conductive means connecting said conductive bands to an external source of electrical power and second electrically conductive means for connecting said brushes to said electric motor whereby said motor is operative in all positions of said drum relative to said shaft.
Claim 2
Dependent Claim
235 words
A printing device for printing time related information on moving objects comprising a hollow drum; a shaft mounting said drum for rotation about its axis, means on the shaft for biasing said drum to a preselected at rest position; means on the outer surface of the drum for frictionally contacting a moving object whereby said drum is rotated from said at rest position as said object moves relative to the position of the axis of the drum; a stationary printing means disposed on the drum surface; at least one movable printing means mounted on said drum surface and related to said stationary printing means; means contained in said hollow drum for moving said movable printing means and including an electric motor mounted in said drum, a gear train driven by said motor and driving said movable printing means; means for connecting said motor to a source of power; said means including an insulating disc fixed to said shaft, said disc having a pair of concentric annular electrically conductive bands carried thereon, a pair of electrically conductive brushes mounted on said drum and movable therewith in conductive contact with said conductive bands, and first electrically conductive means connecting said conductive bands to an external source of electrical power and second electrically conductive means for connecting said brushes to said electric motor whereby said motor is operative in all positions of said drum relative to said shaft.
Claim 3
Dependent Claim
55 words
The printing device defined in claim 1, wherein the at rest positioning means comprises a cam follower mounted on said drum and a cam means mounted stationary but axially movable on said shaft and means biasing said cam means, said cam means having a low point toward which said follower is biased by said cam.
Claim 4
Dependent Claim
39 words
The printing device defined in claim 1 wherein said movable printing means is in the form of a pointer rotatable about a fixed axis and wherein said stationary printing means is concentric with said axis and surrounds said pointer.
Claim 5
Dependent Claim
43 words
A printing device as set forth in claim 1 wherein said conductive disc is mounted on said shaft at its one end and said cam is mounted on said shaft for axial movement toward and away from the opposite end of the shaft.
Claim 6
Dependent Claim
71 words
A printing device as set forth in claim 1, wherein a second electric motor is disposed within said hollow drum and conductively connected to said disc, and a second movable printing means is disposed on the surface of said drum whereby one of said printing means designates the hour and the other of said printing means designates the minute at which an object passes by and is imprinted by said device.
Claim 7
Dependent Claim
38 words
A printing device as defined in claim 1 wherein the end closure for said hollow drum is removable anD has a central aperture through which one of said flexible electrical conductors extends for connection to a power source.
Claim 8
Dependent Claim
50 words
A printing device as defined in claim 1 wherein said printing means are comprised of ink receptive resilient surfaces and further wherein an inking device is disposed adjacent the drum to ink said surfaces with each rotation of the drum and prior to contact with the object to be imprinted.