Patent US3731518A successfully refreshed from Google Patents.
US3731518A
Expired / Lapsed
US
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Crimping die arrangement
Assignee: Individual
•
Filing: 1971-05-26
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Granted: 1973-05-08
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Expires: 1991-05-26
Abstract
Abstract The specification discloses a crimping device, especially for crimping fittings on high pressure hoses and the like, in which a separable die is made up of a pair of die bodies having registering cavities to receive the fittings to be crimped. The die bodies have radially disposed crimping fingers which are all actuated inwardly toward the center of the cavity simultaneously in a positive manner, thereby to effect uniform crimping of the fitting on the hose, or the like, so that the crimped off fitting will be capable of holding high pressures and will be perfectly round in the crimped region thereof.
Inventors
- 👤 G Blocher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:27
CPC Classifications
B; B21; B21D; B21D41/00; H; H01; H01R; H01R43/00; H01R43/04; H01R43/058; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5367
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
136 words
In a die for crimping fittings on tubular members such as hoses and the like: first and second separable die bodies having registering cavity means adapted to confine a fitting when the die bodies close on each other, sets of crimping fingers in said die bodies extending radially from said cavity means and reciprocal in the respective die bodies radially of the respective cavity means, an actuator member pertaining to each die body and disposed on the side thereof opposite the other die body and engaging the radially outer ends of all of the respective crimping fingers, and means for moving said actuator members toward said die bodies when the die bodies close on each other to move equally all of said crimping fingers radially inwardly toward the center of a fitting in said cavity means.
Claim 2
Dependent Claim
136 words
In a die for crimping fittings on tubular members such as hoses and the like: first and second separable die bodies having registering cavity means adapted to confine a fitting when the die bodies close on each other, sets of crimping fingers in said die bodies extending radially from said cavity means and reciprocal in the respective die bodies radially of the respective cavity means, an actuator member pertaining to each die body and disposed on the side thereof opposite the other die body and engaging the radially outer ends of all of the respective crimping fingers, and means for moving said actuator members toward said die bodies when the die bodies close on each other to move equally all of said crimping fingers radially inwardly toward the center of a fitting in said cavity means.
Claim 3
Dependent Claim
72 words
A crimping die according to claim 1 which includes a lost motion connection between each die body and the respective actuating member, each said set of crimping fingers being retracted from said cavity means when the respective die body is at one limit of the lost motion connection thereof with the pertaining actuator member and moving toward said cavity means when said die body moves toward the other limit of said connection.
Claim 4
Dependent Claim
49 words
A crimping die according to claim 1 which includes means supporting each die body on the pertaining actuator member when said die bodies are separated and releasing each die body for movement toward the pertaining actuator member when said die bodies closed on each other in fitting confining relation.
Claim 5
Dependent Claim
85 words
A crimping die according to claim 1 which includes cam means interposed between each die body and the pertaining actuator member and normally supporting the die body in spaced relation to the actuator member, and means operable in response to movement of said actuator members to close said die bodies on each other in fitting confining relation to actuate said cam means into position to permit said actuator members to move toward said die bodies and thereby actuate said crimping fingers in a crimping operation.
Claim 6
Dependent Claim
30 words
A crimping die according to claim 4 which includes means for releasing said cam means simultaneously and gradually to provide for positive actuation of all of said crimping fingers simultaneously.
Claim 7
Dependent Claim
113 words
A crimping die according to claim 5 in which each cam means is in the form of a cam member slidable in the respective actuator member and spring urged toward die body supporting position, a first plunger also slidable in the respective actuator member and operatively engaging said cam member, a second plunger fixed to the other actuator member and adapted to engage said first plunger at about the time saId die bodies close on each other, said second plunger moving said first plunger to actuate said cam member in die body releasing direction in response to movement of said actuator members toward each other after said die bodies close on each other.
Claim 8
Dependent Claim
69 words
A crimping die according to claim 6 in which each cam member is bar-like and has a cam surface between the ends thereof, a cam follower on the pertaining die body engaging said cam surface, a spring urging said cam member toward die body supporting position, an inclined end on said cam member, and an inclined end on said first plunger engaging the inclined end on said cam member.
Claim 9
Dependent Claim
71 words
A crimping die according to claim 1 which includes means supporting said actuator members for movement toward each other to close said die bodies on each other and away from each other to separate said die bodies, and means operable during continued movement of said actuator members toward each other after said die bodies close on each other for positively actuating said crimping fingers in the radially inward direction thereof simultaneously.
Claim 10
Dependent Claim
99 words
A crimping die according to claim 8 in which each actuator member has a recess therein facing the other actuator member, each die body being mounted in a respective said recess, said crimping fingers having the radially outer ends engaging the surface of the respective recess and being spring biased radially outwardly in the respective die body, the radially inner ends of said crimping fingers being formed to crimp a fitting and being disposed radially outwardly from the limits of a said fitting in the die prior to movement of the pertaining actuating member toward the respective die body.
Claim 11
Dependent Claim
68 words
A crimping die according to claim 1 in which said cavity means comprises a pair of cavities in each die body, the cavities in each die body registering with those in the other die body when the die bodies are closed on each other whereby two fittings can be confined by the die bodies, and a set of crimping fingers in each die body for each cavity therein.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |