US3864207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Papermaking Machine Suction Box with Vibratory Movement having both Longitudinal and Vertical Components
Assignee: Individual
•
Filing: 1973-06-18
•
Granted: 1975-02-04
•
Expires: 1993-06-18
Abstract
Abstract Suction boxes located beneath an endless forming wire in a papermaking machine are mounted on resilient supports, and are coupled to vibrators which impart movement to the suction boxes with components in the longitudinal direction of the forming wire and in the vertical direction, and of such resultant direction and amplitude that the suction-boxes at least in their highest position contact the underside of, and move in the same direction as, the forming wire.
Inventors
- 👤 Frans Hugo Ekberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:12
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/52; D21F1/18; D21F1/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
105 words
Apparatus for dehydrating wet fibrous materials carried on a travelling endless screen, comprising a suction-box having a top plate, resilient means supporting the suction-box under the upper run of said screen with said top plate disposed adjacent the underside of said upper run, and means coupled to the suction-box for imparting vibratory movement thereto having components in the longitudinal direction of said screen and in the vertical direction and of such resultant direction and amplitude that the top plate of the suction-box at least in its highest position contacts the underside of, and moves in the same direction as, said upper run of the screen.
Claim 2
Dependent Claim
105 words
Apparatus for dehydrating wet fibrous materials carried on a travelling endless screen, comprising a suction-box having a top plate, resilient means supporting the suction-box under the upper run of said screen with said top plate disposed adjacent the underside of said upper run, and means coupled to the suction-box for imparting vibratory movement thereto having components in the longitudinal direction of said screen and in the vertical direction and of such resultant direction and amplitude that the top plate of the suction-box at least in its highest position contacts the underside of, and moves in the same direction as, said upper run of the screen.
Claim 3
Dependent Claim
13 words
Apparatus as claimed in claim 1, in which said top plate is foraminous.
Claim 4
Dependent Claim
118 words
Apparatus for dehydrating wet fibrous materials carried on a travelling endless screen, comprising a suction-box having a top plate, resilient means supporting the suction-box under the upper run of said screen with said top plate disposed adjacent the underside of said upper run, and vibrator means disposed on and coupled to lateral extensions of the suction-box beyond each side of said screen for imparting vibratory movement thereto having components in the longitudinal direction of said screen and in the vertical direction and of such resultant direction and amplitude that the top plate of the suction-box at least in its highest position contacts the underside of, and moves in the same direction as, said upper run of the screen.
Claim 5
Dependent Claim
118 words
Apparatus for dehydrating wet fibrous materials carried on a travelling endless screen, comprising a suction-box having a top plate, resilient means supporting the suction-box under the upper run of said screen with said top plate disposed adjacent the underside of said upper run, and vibrator means disposed on and coupled to lateral extensions of the suction-box beyond each side of said screen for imparting vibratory movement thereto having components in the longitudinal direction of said screen and in the vertical direction and of such resultant direction and amplitude that the top plate of the suction-box at least in its highest position contacts the underside of, and moves in the same direction as, said upper run of the screen.
Claim 6
Dependent Claim
13 words
Apparatus as claimed in claim 3, in which said top plate is foraminous.
Claim 7
Dependent Claim
139 words
Apparatus for dehydrating wet fibrous materials carried on a travelling endless screen, comprising a suction-box having a top plate, resilient means supporting the suction-box under the upper run of said screen with said top plate disposed adjacent the underside of said upper run, bracket means fixed on lateral extensions of the suction-box beyond each side of said screen with top planes sloping downwards in the travelling direction of the upper run of said screen, and vibrator means mounted on said sloping top planes for imparting vibratory movement thereto having components in the longitudinal direction of said screen and in the vertical direction and of such resultant direction and amplitude that the top plate of the suction-box at least in its highest position contacts the underside of, and moves in the same direction as, said upper run of the screen.
Claim 8
Dependent Claim
139 words
Apparatus for dehydrating wet fibrous materials carried on a travelling endless screen, comprising a suction-box having a top plate, resilient means supporting the suction-box under the upper run of said screen with said top plate disposed adjacent the underside of said upper run, bracket means fixed on lateral extensions of the suction-box beyond each side of said screen with top planes sloping downwards in the travelling direction of the upper run of said screen, and vibrator means mounted on said sloping top planes for imparting vibratory movement thereto having components in the longitudinal direction of said screen and in the vertical direction and of such resultant direction and amplitude that the top plate of the suction-box at least in its highest position contacts the underside of, and moves in the same direction as, said upper run of the screen.
Claim 9
Dependent Claim
13 words
Apparatus as claimed in claim 5, in which said top plate is foraminous.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |