US5069432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for holding a glass workpiece while shaping
Assignee: Individual
•
Filing: 1990-04-05
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Granted: 1991-12-03
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Expires: 2010-04-05
Abstract
Abstract A device for holding glass workpieces while they are shaped by a glassblower is provided. The device includes a hollow shaft handle to one end of which is affixed a clamping means. The clamping means is adjustable longitudinally along the shaft handle, and it may be rotated with respect to the long axis of the shaft handle and about the shaft handle. The clamping means is spring-loaded to provide to secure holding of the workpiece when in use.
Inventors
- 👤 William S. Reising
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:20
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/14; B25B5/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
160 words
A device for holding a glass workpiece while finishing comprising an elongate hollow shaft handle at one end of which is affixed clamping means for holding said workpiece, said clamping means comprising an externally threaded sleeve member slideably mounted over said shaft, an internally threaded annular swivel block member threadingly engaged over said sleeve, two arms rotatably affixed at their one end to said swivel block member and having affixed at their other ends a generally U-shaped retaining ring, said shaft at its end having the clamping means being threadingly engaged with a backing flange, said backing flange having a ridged head means attached thereto, the ridges of which accommodate standard glass workpieces, and a spring mechanism located between said backing flange and said swivel block member, whereby said clamping means are adjustable longitudinally along the shaft handle, are rotatable about an axis orthogonal to the long axis of the shaft handle and also are rotatable about said shaft handle.
Claim 2
Independent Claim
160 words
A device for holding a glass workpiece while finishing comprising an elongate hollow shaft handle at one end of which is affixed clamping means for holding said workpiece, said clamping means comprising an externally threaded sleeve member slideably mounted over said shaft, an internally threaded annular swivel block member threadingly engaged over said sleeve, two arms rotatably affixed at their one end to said swivel block member and having affixed at their other ends a generally U-shaped retaining ring, said shaft at its end having the clamping means being threadingly engaged with a backing flange, said backing flange having a ridged head means attached thereto, the ridges of which accommodate standard glass workpieces, and a spring mechanism located between said backing flange and said swivel block member, whereby said clamping means are adjustable longitudinally along the shaft handle, are rotatable about an axis orthogonal to the long axis of the shaft handle and also are rotatable about said shaft handle.
Claim 3
Dependent Claim
18 words
The device of claim 1 wherein said shaft handle, sleeve, arms, spring and retaining ring are stainless steel.
Claim 4
Dependent Claim
14 words
The device of claim 1 wherein said swivel block and backing flange are titanium.
Claim 5
Dependent Claim
11 words
The device of claim 1 wherein said ridged head is graphite.
Claim 6
Dependent Claim
20 words
The device of claim 1 wherein said arms are affixed to said swivel block by means of stainless steel pins
Claim 7
Dependent Claim
20 words
The device of claim 1 wherein said arms are affixed to said swivel block by means of stainless steel rivets.
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) | 1994-12-02 | 1995-06-03 | 1995-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-02 | 1999-06-03 | 1999-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-02 | 2003-06-03 | 2003-12-03 | $7700.00 | Window Closed / Lapsed |