Device for counting objects
AssigneeFerag AG
InventorPeter Hausmann
Life of this patent
Estimating the term…
Abstract
A ring-jet sensor (24) which is operated with air and is connected to an air-carrying line (23) is directed at the objects (27). The ring-jet sensor (24) is also coupled to a pressure sensor (37), the signal of which passes to a counter (40). In order to avoid connecting two lines to the ring-jet sensor (24), the said ring-jet sensor and also the pressure sensor (37), are each connected, in parallel, to one branch line (23, 35). The branch lines (23, 35) can carry either compressed air or suction air.
Claims7
An apparatus for counting articles being conveyed along a path of travel, and comprising
- air delivery line means (21,34),
- means for delivering air through said air delivery line means,
- a ring-jet sensor (24) mounted adjacent said path of travel and having an outlet directed toward the conveyed articles, and with said sensor being coupled to a first branch line (23),
- pressure sensor means (36) coupled to a second branch line (35) for sensing and counting pressure changes in said second branch line, and with said first and second branch lines being coupled in parallel to said air delivery line means, and
- whereby pressure changes are induced in said air delivery line means by an article being conveyed past said ring-jet sensor and such pressure changes are adapted to be sensed and counted by said pressure sensor means.
An apparatus for counting articles being conveyed along a path of travel, and comprising
- air delivery line means including a first air delivery line (21), and a second air delivery line (34), with said first and second lines being coupled together at an interconnection (22),
- means for selectively delivering pressurized air through said first air delivery line, or drawing suctioned air through said second air delivery line,
- a ring-jet sensor (24) mounted adjacent said path of travel and having an outlet directed toward the conveyed articles, and with said sensor being coupled to a first branch line (23),
- pressure sensor means (36) coupled to a second branch line (35) for sensing and counting pressure changes in said second branch line, and with said first and second branch lines being coupled in parallel to said air delivery line means at said interconnection, and
- whereby pressure changes are induced in said air delivery line means by an article being conveyed past said ring-jet sensor and such pressure changes are adapted to be sensed and counted by said pressure sensor means.
Dependencies are inferred from the claim text.