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US 12,594,549 B2Granted
Plunger rod and method for producing such a plunger rod
AssigneeEppendorf AG
InventorsJens Wilmer, Jörg Sattler, Jianzhao Lue
Life of this patent
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AssigneeEppendorf AG
InventorsJens Wilmer, Jörg Sattler, Jianzhao Lue
Estimating the term…
The invention relates to a plunger rod (10) for a liquid transfer device (100), the plunger rod (10) being of two- or multipart construction. The plunger rod (10) has a first plunger rod component (12), in operative connection with an actuating device (110) of the liquid transfer device (100), and a second plunger rod component (14). The plunger rod (10) comprises a sealing seat (16) for receiving a sealing element (18) for the plunger rod (10), wherein a parting line (20) between the first plunger rod component (12) and the second plunger rod component (14) is configured so the sealing seat (16) is free of parting line flash (22). The invention includes a method for producing a plunger rod (10) and a liquid transfer device (100), in particular a pipette (102, 104, 106) and/or a multichannel bottom part (108) for a pipette (102, 104), with such a plunger rod (10).
A plunger rod (10) for a liquid transfer device (100), wherein the plunger rod (10) is of two or multipart construction and has a first plunger rod component (12), which can be brought into operative connection with an actuating device (110) of the liquid transfer device (100), and a second plunger rod component (14), as well as a sealing seat (16) for receiving a sealing element (18) for the plunger rod (10), wherein a parting line (20) between the first plunger rod component (12) and the second plunger rod component (14) is configured such that the sealing seat (16) is free of parting line flash (22), wherein the sealing seat (16) is configured to receive the sealing element (18) between the first plunger rod component (12) and the second plunger rod component (14).
Dependencies are inferred from the claim text.