Patent US3992773A successfully refreshed from Google Patents.
US4799722A
Expired / Lapsed
US
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Apparatus for transporting perforated objects
Assignee: Ha Whitten & Co
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Filing: 1987-11-10
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Granted: 1989-01-24
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Expires: 2007-11-10
Abstract
Abstract A vacuum-operated gripper head for transporting perforated objects. The gripper head includes a plurality of naps which penetrate into the perforations of the object to be moved in order to seal the perforations. Thus, only the topmost perforated object of a stack of such objects is removed by the gripper head.
Inventors
- 👤 Francesco Marzinotto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 21:07
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/90; B65G47/91; B65G59/00; B65G59/02; B65G59/04; H; H05; H05K; H05K13/00; H05K13/0061
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
115 words
A transport device for transporting perforated objects, comprising: a gripper head having a housing and including a sealing device having a base and a plurality of naps which extend from said base; suction means connected with said gripper head for providing a reduced pressure in said housing; means for adjusting the position of said gripper head; and means for controlling the operation of said suction means and said positioning means, said control means operable to place said gripper head against a perforated object and to actuate said suction means to hold said perforated object against said gripper head; said naps being sized to penetrate into perforations of said perforated object and effectively seal said perforations.
Claim 2
Dependent Claim
115 words
A transport device for transporting perforated objects, comprising: a gripper head having a housing and including a sealing device having a base and a plurality of naps which extend from said base; suction means connected with said gripper head for providing a reduced pressure in said housing; means for adjusting the position of said gripper head; and means for controlling the operation of said suction means and said positioning means, said control means operable to place said gripper head against a perforated object and to actuate said suction means to hold said perforated object against said gripper head; said naps being sized to penetrate into perforations of said perforated object and effectively seal said perforations.
Claim 3
Dependent Claim
27 words
The transport device of claim 1, wherein said housing has a generally U-shaped cross-section and said sealing device is positioned across an open side of said housing.
Claim 4
Dependent Claim
17 words
The transport device of claim 2, wherein said naps extend beyond the open side of said housing.
Claim 5
Dependent Claim
16 words
The apparatus of claim 1, wherein the diameter of said naps tapers away from said base.
Claim 6
Dependent Claim
22 words
The transport device of claim 4, wherein the mean diameter of said tapered naps is between approximately 0.4 millimeters and 1.5 millimeters.
Claim 7
Dependent Claim
20 words
The transport device of claim 5, wherein said tapered naps have a length between approximately 3 millimeters and 8 millimeters.
Claim 8
Dependent Claim
20 words
The transport device of claim 5, wherein said tapered naps have a length between approximately 4 millimeters and 6 millimeters.
Claim 9
Dependent Claim
22 words
The transport device of claim 4, wherein the mean diameter of said tapered naps is between approximately 0.8 millimeters and 1.2 millimeters.
Claim 10
Dependent Claim
20 words
The transport device of claim 8, wherein said tapered naps have a length between approximately 3 millimeters and 8 millimeters.
Claim 11
Dependent Claim
20 words
The transport device of claim 8, wherein said tapered naps have a length between approximately 4 millimeters and 6 millimeters.
Claim 12
Dependent Claim
20 words
The transport device of claim 3, wherein said tapered naps have a length between approximately 3 millimeters and 8 millimeters.
Claim 13
Dependent Claim
20 words
The transport device of claim 3, wherein said tapered naps have a length between approximately 4 millimeters and 6 millimeters.
Claim 14
Dependent Claim
19 words
The transport device of claim 2, wherein the open side of said housing is provided with a sealing lip.
Claim 15
Dependent Claim
28 words
The transport device of claim 1, wherein said sealing device includes a plurality of naps formed on an elastic mat, said elastic mat being secured to a support.
Claim 16
Dependent Claim
20 words
The transport device of claim 14, wherein a plurality of air passages are provided between said support and said housing.
Claim 17
Dependent Claim
20 words
The apparatus of claim 1, wherein approximately 20 to 150 naps per square centimeter are provided on said sealing device.
Claim 18
Dependent Claim
21 words
The apparatus of claim 16, wherein the mean diameter of said tapered naps is between approximately 0.8 millimeters and 1.2 millimeters.
Claim 19
Dependent Claim
19 words
The apparatus of claim 17, wherein said tapered naps have a length between approximately 4 millimeters and 6 millimeters.
Claim 20
Dependent Claim
76 words
A gripper head used in a vacuum operated transport device for transporting perforated objects, comprising: a base plate; a plurality of side walls attached to said base plate to define a housing having a generally U-shaped cross-section; a sealing device mounted in said housing and including a base and a plurality of naps which extend from said base, said naps being sized to penetrate into the perforations of said perforated object and effectively sell said perforations.
Claim 21
Dependent Claim
76 words
A gripper head used in a vacuum operated transport device for transporting perforated objects, comprising: a base plate; a plurality of side walls attached to said base plate to define a housing having a generally U-shaped cross-section; a sealing device mounted in said housing and including a base and a plurality of naps which extend from said base, said naps being sized to penetrate into the perforations of said perforated object and effectively sell said perforations.
Claim 22
Dependent Claim
17 words
The gripper head of claim 19, wherein said naps extend beyond an open side of said housing.
Claim 23
Dependent Claim
17 words
The gripper head of claim 19, wherein the diameter of said naps tapers away from said base.
Claim 24
Dependent Claim
20 words
The gripper head of claim 21, wherein said tapered naps have a length between approximately 4 millimeters and 6 millimeters.
Claim 25
Dependent Claim
22 words
The gripper head of claim 22, wherein the mean diameter of said tapered naps is between approximately 0.8 millimeters and 1.2 millimeters.
Claim 26
Dependent Claim
21 words
The gripper head of claim 16, wherein approximately 20 to 150 naps per square centimeter are provided on said sealing device.
Claim 27
Dependent Claim
22 words
The gripper head of claim 21, wherein the mean diameter of said tapered naps is between approximately 0.8 millimeters and 1.2 millimeters.
Claim 28
Dependent Claim
21 words
The gripper head of claim 25, wherein approximately 20 to 150 naps per square centimeter are provided on said sealing device.
Claim 29
Dependent Claim
21 words
The gripper head of claim 21, wherein approximately 20 to 150 naps per square centimeter are provided on said sealing device.
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) | 1992-01-24 | 1992-07-25 | 1993-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-24 | 1996-07-25 | 1997-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-24 | 2000-07-25 | 2001-01-24 | $7700.00 | Window Closed / Lapsed |