Patent US4622123A successfully refreshed from Google Patents.
US4622123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for compressing a pair of plates
Assignee: Veolia WTS Systems USA Inc
•
Filing: 1985-06-17
•
Granted: 1986-11-11
•
Expires: 2005-06-17
Abstract
Abstract A device for compressing a pair of plates composed of a slotted post extending upright from one of the plates, arranged to pass through a port in the second of the plates, and a circular ramp member rotatably attached to the second of said plates, which ramp is positioned to engage the post slot. Upon rotation of the ramp, the post is drawn through the port resulting in a closing of the distance between or compression of the plates.
Inventors
- 👤 Samuel Nejame, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:03
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/16; B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D61/46; B01D61/50; B01D63/00; B01D63/08; B01D63/082; B30; B30B; B30B1/00; B30B1/40; F16B21/02; F16B5/00; F16B5/06; F16B5/0607; F16B5/0621; F16B5/065; F16B5/0664; B01D2313/00; B01D2313/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
Means for compressing a pair of plates comprising in combination: a. A post attached to and extending upright from the upper surface of the first of said plates and further extending through the second of said plates; and b. A circular ramp member rotatably attached to the upper surface of the second of said plates, said ramp having an axis of rotation parallel to and offset from the axis of said post, said post having a slot for engaging said ramp whereby said post and said first plate are drawn toward said second plate upon rotation of said ramp.
Claim 2
Dependent Claim
99 words
Means for compressing a pair of plates comprising in combination: a. A post attached to and extending upright from the upper surface of the first of said plates and further extending through the second of said plates; and b. A circular ramp member rotatably attached to the upper surface of the second of said plates, said ramp having an axis of rotation parallel to and offset from the axis of said post, said post having a slot for engaging said ramp whereby said post and said first plate are drawn toward said second plate upon rotation of said ramp.
Claim 3
Dependent Claim
17 words
The apparatus of claim 1 wherein said ramp has gripping means attached thereto to facilitate said rotation.
Claim 4
Dependent Claim
14 words
The apparatus of claim 2 wherein said gripping means comprises an allen nut head.
Claim 5
Dependent Claim
14 words
The apparatus of claim 2 wherein said gripping means comprises a multifaceted nut assembly.
Claim 6
Dependent Claim
19 words
The apparatus of claim 1 wherein an electrodialysis membrane stack is positioned and compressed between said pair of plates.
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) | 1989-11-10 | 1990-05-12 | 1990-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-10 | 1994-05-12 | 1994-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-10 | 1998-05-12 | 1998-11-11 | $7700.00 | Window Closed / Lapsed |