US3618929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holding and masking fixture for applying a coating of thermosetting material to selected surfaces of a part
Assignee: Honeywell Inc
•
Filing: 1969-04-03
•
Granted: 1971-11-09
•
Expires: 1989-04-03
Abstract
Abstract A holding and masking fixture for hand use in the fluidized bed method of applying a coating of thermosetting material to selected surfaces of relatively small parts. The heated part is mounted in a masking fixture configured to clamp the part by the surfaces thereof to remain uncoated thereby precisely masking those surfaces. The masked part is immersed into a powder cloud of the thermosetting material, and the coated part is baked thereby curing the adhered thermosetting material.
Inventors
- 👤 Harold R Upchurch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:35
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/32; B05B; B05B12/00; B05B12/16; B05B12/18; B05C; B05C19/00; B05C19/02; B05C9/00; B05C9/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
39 words
A fixture of the character recited in claim 1 in which said locking clamp mechanism is so constructed and arranged that said first and second masking members are substantially parallel to one another when abutting and clamping said part.
Claim 2
Dependent Claim
212 words
A fixture of the character recited in claim 2 in which said parts comprise slotted electrical motor stators having central apertures disposed therethrough whose surfaces to be masked comprise the outer peripheral rim thereof, the banking surfaces on the planar faces contiguous the outer edges thereof, the interior surfaces of said apertures and the surfaces on the planar faces thereof contiguous the edges of said aperture, said first masking member includes a recessed shoulder of diameter in accordance with the outer diameter of said stator and of width in accordance with said banking surfaces for masking said banking surfaces on one face of said stator and an inner masking ring for abutting said surfaces on said one face of said stator contiguous the edges of said apertures whereby to mask said surfaces, and said second masking member includes an outer masking ring for abutting said banking surfaces on the other face of said stator whereby to mask said banking surfaces, an inner masking ring for abutting said surfaces on said other face of said stator contiguous the edges of said apertures whereby to mask said surfaces and a sleeve adapted to fit closely over the peripheral rim of said first masking member whereby to mask said outer peripheral rim of said stator.
Claim 3
Dependent Claim
90 words
A fixture of the character recited in claim 3 in which said fixture further including a porous member fixed to said first mounting member and positioned within said apertures when said stator is clamped between said first and secOnd masking members, said porous member shaped to provide surfaces adjacent said interior surfaces of said apertures to remain uncoated, the remaining surfaces of said porous member sealed with nonporous material, and said porous member providing an inlet for injecting compressed air into the interior thereof whereby to mask said interior surfaces.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |