Patents by Inventor Daniel J. Dowd
Daniel J. Dowd has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 4242293Abstract: Machinery for three dimensionally forming register cut paper articles such as plates, bowls and saucers is operated with a single, register controlled material supply web and a 2:1 cyclic speed differential between the blank cutting station and the hot forming press. Rotational drive speed of the machine is set and limited by the cycle rate of the hot forming press but two or more, register cut product units are cut and stacked from a single ply, registered controlled web supply within a single cycle interim of the forming press. Consequently, the speed limiting step of the entire machine continues, with a single ply web supply to operate with a high percentage of maximum productivity.Type: GrantFiled: October 2, 1979Date of Patent: December 30, 1980Assignee: Westvaco CorporationInventor: Daniel J. Dowd
-
Patent number: 4177410Abstract: Web tension in a creped paper rewinder is controlled at two stations along the web route by respective counter-weighted dancer rolls which also serve as sensors for a drive speed control mechanism. Primary drive speed is under programmed control whereby a first, length percentage of a rewind reel length determines the high speed drive duration whereupon the drive speed is reduced to a lower rate for rewind reel length completion. Rewind reels are self-started on vacuum mandrels which are magazine supplied to the reel starting position. The supply web is longitudinally slit into a multiplicity of strips, each strip being wound about the vacuum mandrel in a reel laterally distinct from adjacent reels but with all reels built upon a common axis mandrel. Tails of the several strips are severed from the web supply by traversing cutter-gluer apparatus which simultaneously spots the end of each cut tail with a portion of adhesive to prevent unreeling following strip reel removal from the mandrel.Type: GrantFiled: January 6, 1978Date of Patent: December 4, 1979Assignee: Westvaco CorporationInventor: Daniel J. Dowd
-
Patent number: 4163180Abstract: Web tension in a creped paper rewinder is controlled at two stations along the web route by respective counter-weighted dancer rolls which also serve as sensors for a drive speed control mechanism. Primary drive speed is under programmed control whereby a first, length percentage of a rewind reel length determines the high speed drive duration whereupon the drive speed is reduced to a lower rate for rewind reel length completion. Rewind reels are self-started on vacuum mandrels which are magazine supplied to the reel starting position. The supply web is longitudinally slit into a multiplicity of strips, each strip being wound about the vacuum mandrel in a reel laterally distinct from adjacent reels but with all reels built upon a common axis mandrel. Tails of the several strips are severed from the web supply by traversing cutter-gluer apparatus which simultaneously spots the end of each cut tail with a portion of adhesive to prevent unreeling following strip reel removal from the mandrel.Type: GrantFiled: January 6, 1978Date of Patent: July 31, 1979Assignee: Westvaco CorporationInventor: Daniel J. Dowd
-
Patent number: 4138073Abstract: A continuous web converting machine is supplied with web material from a spider wheel unwind stand having a shiftable wheel axis. Movement of the spider wheel axis is regulated by a double acting fluid cylinder for controlled force application of the working web supply reel against a closed circuit pulling belt. Depletion of the working reel is detected by a limit switch actuated by contact with the shift carriage. upon working reel depletion, the pressure bias on the fluid cylinder is reversed and the shift carriage retracted to free the working reel from contact with the pulling belt. Thereafter, the spider wheel is rotatively indexed 120.degree. to align a full reel in the working position. Said full reel is prepared with a strip of double faced adhesive tape secured across the full reel web leading edge to facilitate web continuity and splice from a depleted reel to a full one.Type: GrantFiled: April 24, 1978Date of Patent: February 6, 1979Assignee: Westvaco CorporationInventor: Daniel J. Dowd
-
Patent number: 4133495Abstract: Web tension in a creped paper rewinder is controlled at two stations along the web route by respective counterweighted dancer rolls which also serve as sensors for a drive speed control mechanism. Primary drive speed is under programmed control whereby a first, length percentage of a rewind reel length determines the high speed drive duration whereupon the drive speed is reduced to a lower rate for rewind reel length completion. Rewind reels are self-started on vacuum mandrels which are magazine supplied to the reel starting position. The supply web is longitudinally slit into a multiplicity of strips, each strip being wound about the vacuum mandrel in a reel laterally distinct from adjacent reels but with all reels built upon a common axis mandrel. Tails of the several strips are severed from the web supply by traversing cutter-gluer apparatus which simultaneously spots the end of each cut tail with a portion of adhesive to prevent unreeling following strip reel removal from the mandrel.Type: GrantFiled: January 6, 1978Date of Patent: January 9, 1979Assignee: Westvaco CorporationInventor: Daniel J. Dowd
-
Patent number: 4103840Abstract: Web tension in a creped paper rewinder is controlled at two stations along the web route by respective counterweighted dancer rolls which also serve as sensors for a drive speed control mechanism. Primary drive speed is under programmed control whereby a first, length percentage of a rewind reel length determines the high speed drive duration whereupon the drive speed is reduced to a lower rate for rewind reel length completion. Rewind reels are self-started on vacuum mandrels which are magazine supplied to the reel starting position. The supply web is longitudinally slit into a multiplicity of strips, each strip being wound about the vacuum mandrel in a reel laterally distinct from adjacent reels but with all reels built upon a common axis mandrel. Tails of the several strips are severed from the web supply by traversing cutter-gluer apparatus which simultaneously spots the end of each cut tail with a portion of adhesive to prevent unreeling following strip reel removal from the mandrel.Type: GrantFiled: December 14, 1976Date of Patent: August 1, 1978Assignee: Westvaco CorporationInventor: Daniel J. Dowd
-
Patent number: 3963902Abstract: Each print cylinder in a multi-color printing press is provided a numerical address for each registration tolerance increment around the print cylinder circumference. An electrically determined reference point common to all print cylinders determines the address origin for each cylinder. Once aligned in operative registration for a particular printing job format, the registered alignment address for each cylinder is recorded. The address record is used to reset the several cylinders of the same machine without need of a web therein when it is desired to print the same job format on a recurrent occasion.Type: GrantFiled: April 29, 1975Date of Patent: June 15, 1976Assignee: Westvaco CorporationInventor: Daniel J. Dowd