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US 5,921,176 AGranted
Screen printing registration system
AssigneeM&R Printing Equipment, Inc.
InventorAndrew L. Oleson
Life of this patent
Estimating the term…
Abstract
An exposure frame (30) and a registration printing pallet (130) are disclosed for registering a printing screen frame (10) holding a screen (12) first to the artwork (4) and next to the pallet (19) supporting the product (T) to be screened.
Claims12
An exposure frame for use with a printing screen frame having an outer frame perimeter and holding a screen and a carrier sheet having a first mating mechanism associated therewith, comprising:
- an exposure frame member adapted to cooperate with the printing screen frame and the carrier sheet and having opposed side members and opposed end members defining an opening therein;
- a second mating mechanism associated with the exposure frame member adapted for cooperating with the first mating mechanism of the carrier sheet for maintaining the carrier sheet in a set position;
- said second mating mechanism including a plurality of spaced-apart registration pins disposed on one of the opposed end members so as to be mated with the first mating mechanism of the carrier sheet;
- a first projection projecting outwardly from and rigidly connected to the exposure frame member, the first projection having a substantially planar, stationary contact surface for directly contacting the screen frame;
- a second projection projecting outwardly from and rigidly connected to the exposure frame member, the second projection having a substantially planar, stationary contact surface for directly contacting the screen frame and being spaced apart from and positioned a first predetermined horizontal distance and a first predetermined vertical distance from the first projection;
- and,
- a third projection projecting outwardly from and rigidly connected to the exposure frame member, the third projection having a substantially planar, stationary contact surface for directly contacting the screen frame and being spaced apart from and positioned a second predetermined horizontal distance and a second predetermined vertical distance from the first projection,
- the first, second and third projections forming a right angle and cooperating with the outer frame perimeter of the printing screen frame while simultaneously aligning the screen with the opening in the exposure frame member to register the printing screen frame relative to the exposure frame member;
- and
- said exposure frame member further comprising means for simultaneously urging the printing screen frame against said first, second and third projections.
7 more elements
An exposure frame for use with a printing screen frame and a carrier sheet having a first mating mechanism associated therewith, comprising:
- an exposure frame member having two side members, two integral end members and an opening between the side and end members;
- a second mating mechanism associated with the exposure frame member adapted for cooperating with the first mating mechanism of the carrier sheet for maintaining the carrier sheet in a set position;
- said second mating mechanism including a plurality of spaced-apart registration pins disposed on one of the integral end members so as to be mated with the first mating mechanism of the carrier sheet;
- a first stop block rigidly connected to one side member having at least one substantially planar first stationary contact surface for directly contacting the screen frame facing the opening;
- a second stop block rigidly connected to the one side member and spaced apart from the first stop block and having at least one substantially planar second stationary contact surface for directly contacting the screen frame facing the opening;
- a third stop block rigidly connected to the one end member and having at least one substantially planar third stationary contact surface for directly contacting the screen frame facing the opening, the first, second and third stop blocks forming a right angle and cooperating with the outer frame perimeter of the printing screen frame while simultaneously aligning the screen with the opening in the exposure frame member to register the printing screen frame relative to the exposure frame member;
- and said exposure frame member further comprising means for simultaneously urging the printing screen frame against said first, second and third stop blocks.
4 more elements
Dependencies are inferred from the claim text.