Cleaning wiper
AssigneeMinnesota Mining and Manufacturing Company
InventorJames F. Pitzen
Life of this patent
Estimating the term…
Abstract
A cleaning wiper adapted to automatically maintain a fresh cleaning surface upon each utilization. Supply and take-up holders are mounted in a body for holding rolls of a cleaning web. The cleaning web, intermediate the supply and take-up holders, passes over a support member movably mounted within and accessible through a slot in one side of the body. Utilization of the cleaning wiper causes the support member to be moved from its resiliently biased position within the slot and activates an advance linkage. The advance linkage advances the rotation of the take-up holder a predetermined amount.
Claims8
A cleaning wiper adapted to hold a roll of cleaning web, comprising:
- a body having a slot along one side thereof;
- a support member movably mounted within said body, a portion of which is accessible through said slot;
- a supply holder mounted in said body adapted to hold said roll of said cleaning web;
- a take-up holder mounted in said body adapted to hold a take-up roll for said cleaning web;
- said cleaning web when intermediate said supply roll and said take-up roll passing over said portion of said support member forming a cleaning surface;
- said support member being resiliently biased within said slot;
- and
- an advance linkage activated by movement of said support member within said slot and coupled to said take-up holder for advancing the rotation of said take-up holder a predetermined amount;
- whereby said cleaning surface maintains a fresh portion of said cleaning web by automatically advancing said cleaning web as said cleaning wiper is utilized.
A cleaning wiper as in claim 8 wherein said support member has compressible foam contacting said cleaning web.
Dependencies are inferred from the claim text.