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US4449294A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for joining two abutting metal members together and method of making such apparatus

Assignee: Robertshaw Controls Co
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Filing: 1982-04-28
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Granted: 1984-05-22
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Expires: 2002-04-28
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Abstract

Abstract An apparatus is provided for joining two metal members together with a lancing and staking operation that comprises the lancing and forming of a part of one of the members through an unblanked part of the other of the members and thereafter the staking of the formed part of the one member to an adjacent surface of the other member to secure the members together in abutting relation, the apparatus having a punch and a reciprocating head that cooperate together to form the lancing and staking operation on the members and having an indexible carrier for indexing the members to the head for the lancing and staking operation thereon and then away from the head after the lancing and staking operation, the carrier supporting and carrying the punch therewith. A method of making such apparatus is also provided.

Inventors

  • 👤 James C. Gunter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 19:46
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/51; Y10T29/5124; Y10T29/53; Y10T29/534; Y10T29/53404; Y10T29/5343

Claims Analysis

Total Claims: 32
Claim 1
Independent Claim 144 words
In an apparatus for joining two metal members together with a lancing and staking operation that comprises the lancing and forming of a part of one of said members through an unblanked part of the other of said members and thereafter the staking of said formed part of said one member to an adjacent surface means of said other member to secure said members together in abutting relation, said apparatus having a punch and a reciprocating head that cooperate together to perform said lancing and staking operation on said members, the improvement comprising an indexible carrier means for indexing said members to said head for said lancing and staking operation thereon and then away from said head after said lancing and staking operation, said carrier means supporting and carrying said punch therewith whereby said punch moves with said carrier means relative to said head.
Claim 2
Dependent Claim 144 words
In an apparatus for joining two metal members together with a lancing and staking operation that comprises the lancing and forming of a part of one of said members through an unblanked part of the other of said members and thereafter the staking of said formed part of said one member to an adjacent surface means of said other member to secure said members together in abutting relation, said apparatus having a punch and a reciprocating head that cooperate together to perform said lancing and staking operation on said members, the improvement comprising an indexible carrier means for indexing said members to said head for said lancing and staking operation thereon and then away from said head after said lancing and staking operation, said carrier means supporting and carrying said punch therewith whereby said punch moves with said carrier means relative to said head.
Claim 3
Dependent Claim 32 words
An apparatus as set forth in claim 1 wherein said carrier means has positioning means thereon for receiving and holding said members in a positioned relation for said lancing and staking operation.
Claim 4
Dependent Claim 18 words
An apparatus as set forth in claim 2 wherein said positioning means hold said members adjacent said punch.
Claim 5
Dependent Claim 18 words
An apparatus as set forth in claim 2 wherein said positioning means hold said members against said punch.
Claim 6
Dependent Claim 28 words
An apparatus as set forth in claim 2 wherein said positioning means hold said members in an assembly thereof with said one member being disposed against said punch.
Claim 7
Dependent Claim 17 words
An apparatus as set forth in claim 1 wherein said carrier means is movable beneath said head.
Claim 8
Dependent Claim 19 words
An apparatus as set forth in claim 6 wherein said carrier means is movable in a generally horizontal direction.
Claim 9
Dependent Claim 35 words
An apparatus as set forth in claim 1 wherein said carrier means comprises rotatable table means having other punches supported and carried thereby in circumferentially spaced relation to each other and to said first-named punch.
Claim 10
Dependent Claim 33 words
An apparatus as set forth in claim 8 wherein said indexible carrier means is adapted to index said lanced and staked members with their respective punch to other operating stations of said apparatus.
Claim 11
Dependent Claim 53 words
An apparatus as set forth in claim 9 wherein said carrier means has means for carrying another pair of said members with their respective punch to said head to be lanced and staked while moving said first-named members and their respective punch away from said head after said lancing and staking operation thereof.
Claim 12
Dependent Claim 34 words
An apparatus as set forth in claim 1 wherein said one member comprises a terminal member for an electrical switch construction and said other member comprises a flexible switch blade for said switch construction.
Claim 13
Dependent Claim 55 words
An apparatus as set forth in claim 1 wherein said head is a single head having a first means that cooperates with said punch to perform said lancing and forming step on a first stroke of said head and having a second means that performs said staking step on a second stroke of said head.
Claim 14
Dependent Claim 45 words
An apparatus as set forth in claim 12 wherein said first means of said head comprises a female die member that cooperates with said punch during said first stroke thereof to lance and form said metal members between said female die member and said punch.
Claim 15
Dependent Claim 62 words
An apparatus as set forth in claim 13 wherein said second means of said head comprises an anvil member adapted to reciprocate in said female die member, said anvil member being adapted to compact said lanced and formed parts of said metal members between said anvil member and said punch during said second stroke of said head to perform said staking step.
Claim 16
Dependent Claim 72 words
An apparatus as set forth in claim 10 wherein said carrier means has a plurality of stripping means respectively and operatively associated with said punches, said apparatus having means for causing each said stripping means to strip its respective pair of said staked members from its respective punch after said second stroke of said head and after said carrier means indexes that respective pair of said staked members away from said head.
Claim 17
Dependent Claim 155 words
In a method of making an apparatus for joining two metal members together with a lancing and staking operation that comprises the lancing and forming of a part of one of said members through an unblanked part of the other of said members and thereafter the staking of said formed part of said one member to an adjacent surface means of said other member to secure said members together in abutting relation, said apparatus having a punch and a reciprocating head that cooperate together to perform said lancing and staking operation on said members, the improvement comprising the steps of forming an indexible carrier means for indexing said members to said head for said lancing and staking operation thereon and then away from said head after said lancing and staking operation, and supporting said punch on said carrier means to be carried therewith whereby said punch moves with said carrier means relative to said head.
Claim 18
Dependent Claim 155 words
In a method of making an apparatus for joining two metal members together with a lancing and staking operation that comprises the lancing and forming of a part of one of said members through an unblanked part of the other of said members and thereafter the staking of said formed part of said one member to an adjacent surface means of said other member to secure said members together in abutting relation, said apparatus having a punch and a reciprocating head that cooperate together to perform said lancing and staking operation on said members, the improvement comprising the steps of forming an indexible carrier means for indexing said members to said head for said lancing and staking operation thereon and then away from said head after said lancing and staking operation, and supporting said punch on said carrier means to be carried therewith whereby said punch moves with said carrier means relative to said head.
Claim 19
Dependent Claim 41 words
A method of making an apparatus as set forth in claim 16 and including the step of forming said carrier means with positioning means thereon for receiving and holding said members in a positioned relation for said lancing and staking operation.
Claim 20
Dependent Claim 28 words
A method of making an apparatus as set forth in claim 17 and including the step of forming said positioning means to hold said members adjacent said punch.
Claim 21
Dependent Claim 28 words
A method of making an apparatus as set forth in claim 17 and including the step of forming said positioning means to hold said members against said punch.
Claim 22
Dependent Claim 38 words
A method of making an apparatus as set forth in claim 17 and including the step of forming said positioning means to hold said members in an assembly thereof with said one member being disposed against said punch.
Claim 23
Dependent Claim 27 words
A method of making an apparatus as set forth in claim 16 and including the step of forming said carrier means to be movable beneath said head.
Claim 24
Dependent Claim 29 words
A method of making an apparatus as set forth in claim 21 and including the step of forming said carrier means to be movable in a generally horizontal direction.
Claim 25
Dependent Claim 47 words
A method of making an apparatus as set forth in claim 16 and including the steps of forming said carrier means to comprise a rotatable table means, and supporting other punches on said carrier means in circumferentially spaced relation to each other and to said first-named punch.
Claim 26
Dependent Claim 43 words
A method of making an apparatus as set forth in claim 23 and including the step of forming said indexible carrier means to be adapted to index said lanced and staked members with their respective punch to other operating stations of said apparatus.
Claim 27
Dependent Claim 63 words
A method of making an apparatus as set forth in claim 24 and including the step of forming said carrier means to have means for carrying another pair of said members with their respective punch to said head to be lanced and staked while moving said first-named members and their respective punch away from said head after said lancing and staking operation thereof.
Claim 28
Dependent Claim 45 words
A method of making an apparatus as set forth in claim 16 and including the step of forming said one member to comprise a terminal member for an electrical switch construction and said other member to comprise a flexible switch blade for said switch construction.
Claim 29
Dependent Claim 65 words
A method of making an apparatus as set forth in claim 16 and including the step of forming said head to be a single head having a first means that cooperates with said punch to perform said lancing and forming step on a first stroke of said head and having a second means that performs said staking step on a second stroke of said head.
Claim 30
Dependent Claim 55 words
A method of making an apparatus as set forth in claim 27 and including the step of forming said first means of said head to comprise a female die member that cooperates with said punch during said first stroke thereof to lance and form said metal members between said female die member and said punch.
Claim 31
Dependent Claim 75 words
A method of making an apparatus as set forth in claim 28 and including the steps of forming said second means of said head to comprise an anvil member adapted to reciprocate in said female die member, and forming said anvil member to be adapted to compact said lanced and formed parts of said metal members between said anvil member and said punch during said second stroke of said head to perform said staking step.
Claim 32
Dependent Claim 84 words
A method of making an apparatus as set forth in claim 25 and including the steps of forming said carrier means to have a plurality of stripping means respectively and operatively associated with said punches, and forming said apparatus with means to cause each said stripping means to strip its respective pair of said staked members from its respective punch after said second stroke of said head and after said carrier means indexes that respective pair of said staked members away from said head.

References Cited (Backward Citations)

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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) 1987-05-22 1987-11-21 1988-05-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-05-22 1991-11-21 1992-05-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-05-22 1995-11-21 1996-05-22 $7700.00 Window Closed / Lapsed

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