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US 12,491,694 B2Granted
Presser assembly with magnetic biasing
AssigneeBlanking Systems, Inc.
InventorRussell A. Kempka, Jr.
Life of this patent
Estimating the term…
Abstract
A presser assembly is provided for supporting a carton blank. The presser assembly includes a housing having a cavity formed therein. A presser plunger is telescopically received in the housing. The presser plunger is slidable between a first retracted position wherein the presser plunger is at least substantially received with the cavity in the housing and an extended position wherein the presser plunger projects from the open end of the housing. A magnetic biasing structure urges the presser plunger toward the extended position.
Claims7
A presser assembly supporting a carton blank, comprising:
- a housing;
- a presser plunger telescopically received in the housing, the presser plunger movable along a path between a retracted position and an extended position;
- a first biasing structure biasing the presser plunger toward the extended position;
- and
- a second biasing structure acting on the presser plunger during a first portion of the path to urge the presser plunger towards the extended position.
2 more elements
Dependencies are inferred from the claim text.