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US 12,605,959 B2Granted
Stations for forming heat seals in envelopes
AssigneePregis LLC
InventorThomas D. Wetsch
Life of this patent
Estimating the term…
Abstract
Stations for sealing envelopes include a spacer, a positioning surface, and an envelope support surface configured to support the envelopes. A sealing mechanism is provided with sealing members configured to apply heat and pressure to a sealable member on the envelope to form a closure seal. The spacer and the positioning surface are configured to align the sealable member with the sealing members when the envelope is resting on the envelope support surface.
Claims28
A station for sealing an envelope, comprising:
- a sealing mechanism comprising a first and a second sealing member configured to apply heat and pressure to a sealable member of the envelope disposed between the first and second sealing members, the heat and pressure being sufficient to activate the sealable member to form a closure seal in the envelope;
- a spacer configured to position the first and second sealing members at a predetermined first distance from a positioning surface that corresponds to a spacing between a closed bottom of the envelope and the sealable member to align the sealable member with the first and second sealing members when the envelope is positioned against the positioning surface;
- and
- a lateral guide configured and positioned with respect to the sealing mechanism and spacer to guide and orient the envelope laterally into contact with the positioning surface.
1 more element
Dependencies are inferred from the claim text.