Patent US3812593A successfully refreshed from Google Patents.
Patent US3620188A successfully refreshed from Google Patents.
US3620188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Applicator and gantry for use with conveyor belts in the manufacture of foam plastic section members
Assignee: Maschinenfabrik Hennecke GmbH
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Filing: 1970-05-18
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Granted: 1971-11-16
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Expires: 1990-05-18
Abstract
Abstract The gantry of a foaming machine is applied with a plug of pulleys backwards and forwards displacement of the applicator for the foam-forming mixture in order to reach a higher speed of the applicator during its movement.
Inventors
- 👤 Willi Schmitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:09
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/02; B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/46; B29C44/461
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
215 words
An applicator displaceable backwards and forwards by means of a guide rod on a gantry, for applying a foam-forming reaction mixture to a support foil traveling on a conveyor belt, wherein the gantry (3) is provided with a hydraulic cylinder (5) in which is arranged A piston (6) which can be acted upon on both sides and which is provided on both sides with piston rods (7,8), cable pulleys (9,10) being mounted on the ends of the said rods, further cable pulleys (14,17) being mounted on the gantry (3) outside their travel distance, one on each side; one end of a cable (11) is secured on a fixed part and is guided over a cable pulley (9) mounted on the associated piston rod (7), over a cable pulley (14) which is fixed on the gantry (3) on the far side of the hydraulic cylinder (5) and over the second cable pulley (17) secured on the gantry (3), and finally over the cable pulley (10) mounted on the second piston rod (8); and the second end of the cable (11) is held on a fixed part, that section of the cable (11) which extends between the two cable pulleys (14,17) fixed on the gantry (3) having fixed thereon a guide rod (20) with the applicator (22,25).
Claim 2
Dependent Claim
215 words
An applicator displaceable backwards and forwards by means of a guide rod on a gantry, for applying a foam-forming reaction mixture to a support foil traveling on a conveyor belt, wherein the gantry (3) is provided with a hydraulic cylinder (5) in which is arranged A piston (6) which can be acted upon on both sides and which is provided on both sides with piston rods (7,8), cable pulleys (9,10) being mounted on the ends of the said rods, further cable pulleys (14,17) being mounted on the gantry (3) outside their travel distance, one on each side; one end of a cable (11) is secured on a fixed part and is guided over a cable pulley (9) mounted on the associated piston rod (7), over a cable pulley (14) which is fixed on the gantry (3) on the far side of the hydraulic cylinder (5) and over the second cable pulley (17) secured on the gantry (3), and finally over the cable pulley (10) mounted on the second piston rod (8); and the second end of the cable (11) is held on a fixed part, that section of the cable (11) which extends between the two cable pulleys (14,17) fixed on the gantry (3) having fixed thereon a guide rod (20) with the applicator (22,25).
Claim 3
Dependent Claim
24 words
An applicator according to claim 1, wherein one end of the cable (11) is fixed on the piston (12) of a tensioning cylinder (13).
References Cited (Backward Citations)
CH312953A
Cited
US3200656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |