Back to results
US 4,532,642 AGranted
Counting stamper apparatus
AssigneeSpectrum Manufacturing Inc.
InventorsJames A. Morris, Curtis L. Hancock, John L. Wiley
Life of this patent
Estimating the term…
Abstract
A pressure-actuated switch mounted in the handle of a self-inking stamper is actuated by a stationary plunger assembly which extends into the handle and pressures the switch when the stamp element is moved into contact with a surface being marked. Actuation of the switch advances a counting circuit remotely located inside the lid of a lockable box. A circuit times the stamp element in the stamping position to avoid multiple markings on a single count.
Claims22
Marking and counting apparatus comprising
- a base having a distal end for resting upon a surface to be marked a proximal portion spaced therefrom,
- a marking element mounted on the base and moveable with respect thereto,
- means for moving the marking element,
- switch actuator means having a portion stationary with respect to the base when the marking element approaches the distal end of the base,
- a switch mounted for movement with said marking element, said switch being actuated by the actuator means whenever the marking element is moved into the distal end of the base, and
- counter means connected to the switch for counting the number of times the switch is actuated, and
- timer means connected to the switch means for timing the duration of the marking element in the distal end of the base and for producing a signal when the duration exceeds a predetermined limit.
4 more elements
Marking and counting apparatus comprising
- a base having an open distal end and a proximal portion extending longitudinally therefrom,
- a marking element mounted for reciprocal movement within the base, the base being arranged about the marking element to permit the marking element to mark a surface larger than the base only when the marking element is positioned in the distal end of the base,
- spring means mounted on the base for biasing the marking element into the proximal portion of the base,
- means for moving the marking element in opposition to the bias of said spring means to position the marking element in the distal end of the base, and
- means for automatically counting the number of times the marking element is moved into the distal end of the base comprising switch means which are actuated whenever the marking element moves into the distal end of the base, a counter circuit comprising display elements and a source of power, and conduit means for electrically connecting the switch means to the counter circuit.
2 more elements
Dependencies are inferred from the claim text.