Patent US3653802A successfully refreshed from Google Patents.
US3653802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nut crimping tool
Assignee: Individual
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Filing: 1970-11-18
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Granted: 1972-04-04
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Expires: 1990-11-18
Abstract
Abstract A motor driven tool provided with a rotatable socket for threading a nut upon a bolt and having clamping jaws for crimping the nut in place on the bolt, the clamping jaws being actuated by axial movement of an encircling jaw cup to which axial movement is imparted by threads which are driven from a motor driven tool through the medium of planet gears so that the socket will first torque the nut on the bolt and the jaw cup will then move against the jaws to engage and radially clamp the nut upon the bolt.
Inventors
- 👤 Lowell Warner Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:20
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; B23P19/06; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53687; Y10T29/53996
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
221 words
A nut crimping tool for installing and crimping a nut upon a threaded bolt shank comprising: a. a substantially cylindrical housing having an open rear extremity and provided with a fixed end wall at its forward extremity; b. a cup-shaped jaw cup concentrically positioned on and forwardly of said end wall, said jaw cup being adapted to rotate with said housing and being axially movable toward and away from said wall; c. a substantially cylindrical nut socket member fixedly mounted in said end wall and extending axially forward within said jaw cup to receive said bolt and said nut; d. a plurality of crimping jaws hingedly mounted at their rear extremities on and about sad nut socket member within said jaw cup and projecting forward of both said nut socket member and said jaw cup; e. means for simultaneously and resiliently flaring the forward extremities of said jaws diametrically outward from the projected axis of said nut socket member and internally against said jaw cup; f. means for rotating said housing to cause said nut socket member to rotate therewith so as to torque said nut upon said bolt; g. means for urging said jaw cup forwardly from said wall into contact with said flared jaws to urge the forward extremities of the latter inwardly into crimping relation with said nut.
Claim 2
Dependent Claim
221 words
A nut crimping tool for installing and crimping a nut upon a threaded bolt shank comprising: a. a substantially cylindrical housing having an open rear extremity and provided with a fixed end wall at its forward extremity; b. a cup-shaped jaw cup concentrically positioned on and forwardly of said end wall, said jaw cup being adapted to rotate with said housing and being axially movable toward and away from said wall; c. a substantially cylindrical nut socket member fixedly mounted in said end wall and extending axially forward within said jaw cup to receive said bolt and said nut; d. a plurality of crimping jaws hingedly mounted at their rear extremities on and about sad nut socket member within said jaw cup and projecting forward of both said nut socket member and said jaw cup; e. means for simultaneously and resiliently flaring the forward extremities of said jaws diametrically outward from the projected axis of said nut socket member and internally against said jaw cup; f. means for rotating said housing to cause said nut socket member to rotate therewith so as to torque said nut upon said bolt; g. means for urging said jaw cup forwardly from said wall into contact with said flared jaws to urge the forward extremities of the latter inwardly into crimping relation with said nut.
Claim 3
Dependent Claim
93 words
A nut crimping tool as described in claim 1 in which the means for urging said jaw cup forwardly comprises: a. a substantially cylindrical drive fitting concentrically positioned within said housing; b. compression members mounted in said fitting and slidably extending forward through said end wall in radially spaced relation to the wall, said jaw cup being mounted on the forward extremities of said compression members forwardly of said wall; and d. means for urging said drive fitting forward to cause said compression members to carry said jaw cup forward against said jaws.
Claim 4
Dependent Claim
62 words
A nut crimping tool as described in claim 2 in which the means for urging the drive fitting forward comprises: a. a substantially cylindrical rotatable, endwise Immovable sleeve threaded upon said drive fitting within said housing; and b. means for imparting rotation to said sleeve independently of the rotation of said housing to cause the sleeve to thread the drive fitting forwardly.
Claim 5
Dependent Claim
101 words
A nut crimping tool as described in claim 3 in which the means for imparting rotation to the sleeve comprises: a. an internal ring gear in said housing; b. a rotatable axially positioned sun gear positioned in said housing; c. a series of planet gears intermeshed between said sun gear and said ring gear, the axes of said planet gears being journaled in said sleeve so that orbital rotation of said planet gears will rotate said sleeve on said drive fitting to drive the latter forwardly; and d. means for rotating said sun gear independently of the rotation of said housing.
Claim 6
Dependent Claim
62 words
A nut crimping tool as described in claim 4 in which the means for rotating said sun gear comprises: a. a cap element closing the rear extremity of said housing; b. an input socket element axially journaled in said cap element; and c. means for communicating rotation from said input socket element to said sun gear independently of rotation of said housing.
Claim 7
Dependent Claim
71 words
A nut crimping tool as described in claim 5 in which the means for communicating rotation to said sun gear comprises: a. a directional clutch mechanism interposed between said input socket element and said sun gear which will interengage to positively drive the sun gear when said socket element is rotated to the right and which will override to allow said sun gear to remain stationary when rotated to the left.
Claim 8
Dependent Claim
171 words
A nut crimping tool as described in claim 6 in which the directional clutch mechanism comprises: a. a first series of radially positioned clutch teeth concentrically mounted on said sun gear rearwardly of the latter; b. a second series of radially positioned clutch teeth concentrically mounted on the forward extremity of said input socket so as to be meshable with said first series; c. an axially positioned connecting rod mounted in the forward extremity of said input socket and extending axially and freely forward through said sun gear into the interior of said drive fitting and terminating in a thrust bearing; d. a compression spring surrounding said connecting rod, said spring being permanently compressed between said sun gear and said thrust bearing to cause said connecting rod to resiliently draw the second series of teeth into engagement with the first series of teeth, said teeth being cooperatively inclined to positively drive the sun gear when said socket element is right rotated and to override when said socket element is left rotated.
Claim 9
Dependent Claim
113 words
A nut crimping tool as described in claim 2 having: a. a circumferential groove formed in said nut socket member within said jaw cup; b. an axially extending latch projection at the inner extremity of each crimping jaw; c. a spring ring surrounding all of said inner extremities acting to urge said latching projections into said circumferential groove to cause the forward extremities to flare outwardly against the inside of the lip of said jaw cup when said jaw cup is moved rearwardly; and d. an axially extending nut-indenting edge formed on the outer extremity of each jaw adapted to be impressed into said nut when said jaw cup is moved forwardly thereon.
References Cited (Backward Citations)
US3479714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |