US3648416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable valve facer
Assignee: Individual
•
Filing: 1970-05-22
•
Granted: 1972-03-14
•
Expires: 1990-05-22
Abstract
Abstract A portable valve facer is disclosed for grinding the seating face of a valve. The valve facer includes adjustable mounting plates having arcuate sections cooperating to rotatably support the valve stem. One of the plates further defines an extension that pivotally supports a sector having a slotted flange for receiving a grinding wheel assembly. Adjustment means are also provided for varying the angular and linear position of the grinding wheel assembly to enable the grinding wheel to engage the seating face of various diameter valve heads. The valve stem is adapted to be rotatably driven by a hand drill or the like with the rotary motion of the valve head causing the seating face to frictionally rotate the grinding wheel. During such movement, the frictional motion to the grinding wheel with the grinding action interengagement causes the grinding wheel to grind the surface of the seating face.
Inventors
- 👤 Jack Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:15
CPC Classifications
B; B24; B24B; B24B15/00; B24B15/04
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
98 words
A portable valve facer for grinding the seating face of a valve comprising: means for receiving and supporting the valve stem as it is rotatably driven by a hand drill or the like; means for adjusting the support means to enable the support means to receive various sizes of valve stems; mounting means, pivotally connected to a portion of said support means, for supporting a grinding wheel assembly; and a grinding wheel assembly having a grinding wheel rotatably supported on said mounting means and adapted to engage and be frictionally rotated by the seating face of the valve.
Claim 2
Dependent Claim
98 words
A portable valve facer for grinding the seating face of a valve comprising: means for receiving and supporting the valve stem as it is rotatably driven by a hand drill or the like; means for adjusting the support means to enable the support means to receive various sizes of valve stems; mounting means, pivotally connected to a portion of said support means, for supporting a grinding wheel assembly; and a grinding wheel assembly having a grinding wheel rotatably supported on said mounting means and adapted to engage and be frictionally rotated by the seating face of the valve.
Claim 3
Dependent Claim
30 words
The invention of claim 1 wherein said mounting means further comprises means for adjusting the angular position of said grinding wheel with respect to the seating face of the valve.
Claim 4
Dependent Claim
30 words
The invention of claim 1 wherein said mounting means further comprises means for adjusting the linear position of said grinding wheel with respect to the seating face of the valve.
Claim 5
Dependent Claim
39 words
The invention of claim 2 wherein said angular adjusting means comprises an arcuate slot formed on said mounting means with set screw means extending in said slot selectively locking said mounting means to the portion of said mounting means.
Claim 6
Dependent Claim
33 words
The invention of claim 3 wherein said linear adjusting means includes an elongated slot formed on said mounting means with the grinding wheel assembly including a grinding wheel shaft extending through said slot.
Claim 7
Dependent Claim
28 words
The invention of claim 5 wherein said grinding wheel assembly further comprises lock nut means on said grinding wheel shaft for selectively securing said shaft to mounting means.
Claim 8
Dependent Claim
19 words
The invention of claim 6 wherein said lock nut means further adjusts the compressive force on said grinding wheel.
Claim 9
Dependent Claim
29 words
The invention of claim 1 wherein said support means includes a pair of contiguous plates having a pair of cooperating arcuate sections adapted to extend around the valve stem.
Claim 10
Dependent Claim
33 words
The invention of claim 8 wherein said adjusting means comprises one of said plates having a slot formed therein and a set screw extending in said slot for selectively locking said plates together.
Claim 11
Dependent Claim
135 words
A portable valve facer for grinding the seating face of a valve comprising: means for supporting the valve stem as it is rotatably driven by a hand drill or the like; mounting means, pivotally connected to a portion of said support means, for supporting a grinding wheel assembly, said mounting means further comprises means for adjusting the angular position of the grinding wheel with respect to the seating face of the valve, said angular adjusting means comprises an arcuate slot formed on said mounting means with set screw means extending in said slot selectively locking said mounting means to the portion of said mounting means; and a grinding wheel assembly having a grinding wheel rotatably supported on said mounting means and adapted to engage and be frictionally rotated by the seating face of the valve.
Claim 12
Dependent Claim
135 words
A portable valve facer for grinding the seating face of a valve comprising: means for supporting the valve stem as it is rotatably driven by a hand drill or the like; mounting means, pivotally connected to a portion of said support means, for supporting a grinding wheel assembly, said mounting means further comprises means for adjusting the angular position of the grinding wheel with respect to the seating face of the valve, said angular adjusting means comprises an arcuate slot formed on said mounting means with set screw means extending in said slot selectively locking said mounting means to the portion of said mounting means; and a grinding wheel assembly having a grinding wheel rotatably supported on said mounting means and adapted to engage and be frictionally rotated by the seating face of the valve.
Claim 13
Dependent Claim
129 words
A portable valve facer for grinding the seating face of a valve comprising: means for supporting the valve stem as it is rotatably driven by a hand drill or the like; mounting means, pivotally connected to a portion of said support means, for supporting a grinding wheel assembly, said mounting means further comprises means for adjusting the linear position of said grinding wheel with respect to the seating face of the valve, said linear adjusting means comprises an elongated slot formed on said mounting means with the grinding wheel assembly including a grinding wheel shaft extending through said slot; and a grinding wheel assembly having a grinding wheel rotatably supported on said mounting means and adapted to engage and be frictionally rotated by the seating face of the valve.
Claim 14
Dependent Claim
129 words
A portable valve facer for grinding the seating face of a valve comprising: means for supporting the valve stem as it is rotatably driven by a hand drill or the like; mounting means, pivotally connected to a portion of said support means, for supporting a grinding wheel assembly, said mounting means further comprises means for adjusting the linear position of said grinding wheel with respect to the seating face of the valve, said linear adjusting means comprises an elongated slot formed on said mounting means with the grinding wheel assembly including a grinding wheel shaft extending through said slot; and a grinding wheel assembly having a grinding wheel rotatably supported on said mounting means and adapted to engage and be frictionally rotated by the seating face of the valve.
Claim 15
Dependent Claim
28 words
The invention of claim 11 wherein said grinding wheel assembly further comprises lock nut means on said grinding wheel shaft for selectively securing said shaft to mounting means.
Claim 16
Dependent Claim
19 words
The invention of claim 12 wherein said lock nut means further adjusts the compressive force on said grinding wheel.
Claim 17
Dependent Claim
101 words
A portable valve facer for grinding the seating face of a valve comprising: means for supporting the valve stem as it is rotatably driven by a hand drill or the like, said supporting means comprises a pair of contiguous plates having a pair of cooperating arcuate sections adapted to extend around the valve stem; mounting means, pivotally connected to a portion of said support means, for supporting a grinding wheel assembly; and a grinding wheel assembly having a grinding wheel rotatably supported on said mounting means and adapted to engage and be frictionally rotated by the seating face of the valve.
Claim 18
Dependent Claim
101 words
A portable valve facer for grinding the seating face of a valve comprising: means for supporting the valve stem as it is rotatably driven by a hand drill or the like, said supporting means comprises a pair of contiguous plates having a pair of cooperating arcuate sections adapted to extend around the valve stem; mounting means, pivotally connected to a portion of said support means, for supporting a grinding wheel assembly; and a grinding wheel assembly having a grinding wheel rotatably supported on said mounting means and adapted to engage and be frictionally rotated by the seating face of the valve.
Claim 19
Dependent Claim
28 words
The invention of claim 14 further comprising means for adjusting the position of one plate with respect to the other to vary the distance between the arcuate sections.
Claim 20
Dependent Claim
33 words
The invention of claim 15 wherein said adjusting means comprises one of said plates having a slot formed therein and a set screw extending in said slot for selectively locking said plates together.
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |