Patent US3638260A successfully refreshed from Google Patents.
US3638260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeder for screw blanks and serrated washers
Assignee: MOORFEED CORP
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Filing: 1970-03-25
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Granted: 1972-02-01
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Expires: 1990-03-25
Abstract
Abstract Vibratory track means for serially feeding washers, the track means including means providing an upwardly facing first ledge portion for supporting peripheral edge portions of the washers, an upwardly extending first wall portion extending along and bounding the first ledge portion, and an overhanging, downwardly facing portion extending outwardly from the first wall portion by an amount preferably not substantially greater than the crosssectional width of the first ledge portion. The track means also includes means providing a second upwardly facing ledge portion for supporting the diametrically opposite peripheral edge portions of the washers and an upwardly extending second wall portion extending along and bounding the second ledge portion and facing the said first wall portion, the track means being devoid of any surface overhanging this second ledge portion.
Inventors
- 👤 John B Brown
- 👤 Raymond L Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:28
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; B23P19/08; B23Q; B23Q7/00; B23Q2707/00; B23Q2707/02; B23Q2707/025
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
139 words
Vibratory track means for serially feeding washers longitudinally therealong by vibratory movement, said track means including means providing an upwardly facing first ledge portion extending therealong for supporting peripheral edge portions of such washers, an upwardly extending first wall portion extending along and bounding said first ledge portion, an overhanging, downwardly facing portion extending outwardly from and along said first wall portion by an amount not substantially greater than the cross-sectional width of said first ledge portion, a second upwardly facing ledge portion for supporting the diametrically opposite peripheral edge portions of such washers, said second ledge portion extending longitudinally alongside said first ledge portion, and an upwardly extending second wall portion extending along and bounding said second ledge portion and facing said first wall portion, said track means being devoid of any surface overhanging said second ledge portion.
Claim 2
Dependent Claim
139 words
Vibratory track means for serially feeding washers longitudinally therealong by vibratory movement, said track means including means providing an upwardly facing first ledge portion extending therealong for supporting peripheral edge portions of such washers, an upwardly extending first wall portion extending along and bounding said first ledge portion, an overhanging, downwardly facing portion extending outwardly from and along said first wall portion by an amount not substantially greater than the cross-sectional width of said first ledge portion, a second upwardly facing ledge portion for supporting the diametrically opposite peripheral edge portions of such washers, said second ledge portion extending longitudinally alongside said first ledge portion, and an upwardly extending second wall portion extending along and bounding said second ledge portion and facing said first wall portion, said track means being devoid of any surface overhanging said second ledge portion.
Claim 3
Dependent Claim
37 words
The invention of claim 1 in which the ledge portions are spaced apart by an amount substantially equal to or greater than the internal diameter of such washers and less than the outer diameter of such washers.
Claim 4
Dependent Claim
65 words
The invention of claim 1 in which the distance between said first ledge portion and said overhanging, downwardly facing portion is from 10 to 60 percent greater than the thickness of such washers and in which the cross-sectional width of said first ledge portion and said overhanging portion is less than one-half the difference between the outer diameter and the internal diameter of such washers.
Claim 5
Dependent Claim
33 words
The invention of claim 3 in which the ledge portions are spaced apart by a distance greater than the internal diameter of such washers and less than the outer diameter of such washers.
Claim 6
Dependent Claim
27 words
The invention of claim 4 in which the height of said second wall portion is from 10 to 60 percent greater than the thickness of such washers.
Claim 7
Dependent Claim
48 words
The invention of claim 3 in which said track means is provided with an entrance end to which such washers are fed and in which said overhanging, downwardly facing portion is provided, at said entrance end, with a beveled surface inclining upwardly away from said first ledge portion.
Claim 8
Dependent Claim
184 words
The invention of claim 1 including an upper track means for serially feeding screws for mating with such washers, said upper track means including an exit end portion disposed above and in vertical registry with a portion of said first mentioned track means, said exit end portion including a third ledge portion for supporting peripheral edge portions of the heads of such screws and a fourth ledge portion for supporting the diametrically opposite peripheral edge portions of the heads of such screws, said third ledge portion being disposed above and in vertical registry with said first ledge portion and said fourth ledge portion being disposed above and in vertical registry with said second ledge portion, said third and fourth ledge portions being spaced apart to receive therebetween the downwardly extending shanks of such screws, and said third and fourth ledge portions inclining downwardly relative to said first and second ledge portions so that the shanks of such screws moving along said third and fourth ledge portions will engage and extend through the openings in such washers moving along said first and second ledge portions.
Claim 9
Dependent Claim
73 words
The invention of claim 7 in which said means providing said first ledge portion, first wall portion and said overhanging, downwardly facing portion includes a member formed with an elongated, generally rectangularly shaped groove in an upwardly extending surface thereof, the lower surface of said groove providing said first ledge portion, the bottom of said groove providing said first wall portion and the upper surface of said groove providing said downwardly facing portion.
Claim 10
Dependent Claim
26 words
The invention of claim 8 in which said member is formed with an upper edge inclining downwardly toward said groove to provide said third ledge portion.
Claim 11
Dependent Claim
111 words
The invention of claim 9 including a vibratory feeder bowl for feeding such screws and an annular pan for feeding such washers, said pan being disposed peripherally about said bowl and rigidly connected thereto for vibration therewith, said member being formed about a generally vertical axis coinciding generally with the axis of said bowl, said member being mounted to extend about the periphery of said bowl and above said pan with said groove formed in the outer periphery of said member, and in which said upper track means includes a strip extending peripherally about said bowl and inclining downwardly to provide said fourth ledge portion, and means for mounting said strip.
Claim 12
Dependent Claim
34 words
The invention of claim 7 including air jet means disposed adjacent to said exit end portion and arranged to direct a jet of air downstream at such screws and washers after they are engaged.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |