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公开(公告)号：US12109722B2
公开(公告)日：2024-10-08
申请号：US17664496
申请日：2022-05-23
Applicant: Thomas Henry Rice
Inventor： Thomas Henry Rice
CPC classification number: B26F1/44 , B26D5/12 , E04B1/7069
Abstract: A hole punching machine for use on wet or damp drywall improves ventilation behind the drywall for drying purposes. The machine includes a base position on the floor and against the wall. A pneumatic ram in the base can be extended and retracted to cut a hole in drywall, after any baseboard is removed. The hole can then be covered when the baseboard is reinstalled. The operator can activate the ram using a switch, while standing.
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公开(公告)号：US20220379516A1
公开(公告)日：2022-12-01
申请号：US17664496
申请日：2022-05-23
Applicant: Thomas Henry Rice
Inventor： Thomas Henry Rice
Abstract: A hole punching machine for use on wet or damp drywall improves ventilation behind the drywall for drying purposes. The machine includes a base position on the floor and against the wall. A pneumatic ram in the base can be extended and retracted to cut a hole in drywall, after any baseboard is removed. The hole can then be covered when the baseboard is reinstalled. The operator can activate the ram using a switch, while standing.
