Patent US3679220A successfully refreshed from Google Patents.
US3679220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick change tool holder
Assignee: Portage Machine Co
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Filing: 1970-03-23
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Granted: 1972-07-25
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Expires: 1990-03-23
Abstract
Abstract In a tool holder adapted to be mounted in a spindle for rotational purposes and to releasably hold a tool adaptor the provision of a spring loaded impact ring movable relatively of the holder and its locking nut, whereby, by grasping the impact ring, the adaptor can be removed without halting the spindle.
Inventors
- 👤 Harold C Reeves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:19
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/113; Y; Y10; Y10S; Y10S279/00; Y10S279/904; Y10T; Y10T279/00; Y10T279/17; Y10T279/17863
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
89 words
A tool holder adapted to receive a flanged tool adaptor of the character described, comprising; A. a holder body B. a locking member 1. releasably mounted on said body 2. and overlying said flange and releasably retaining saId tool adaptor on said tool holder C. release means 1. mounted on said body 2. and adapted to rotate said locking member into and out of locking relationship with said tool adaptor; and D. means carried by said release means and adapted to normally urge said locking member into locked condition.
Claim 2
Dependent Claim
89 words
A tool holder adapted to receive a flanged tool adaptor of the character described, comprising; A. a holder body B. a locking member 1. releasably mounted on said body 2. and overlying said flange and releasably retaining saId tool adaptor on said tool holder C. release means 1. mounted on said body 2. and adapted to rotate said locking member into and out of locking relationship with said tool adaptor; and D. means carried by said release means and adapted to normally urge said locking member into locked condition.
Claim 3
Dependent Claim
17 words
and overlying said flange and releasably retaining saId tool adaptor on said tool holder C. release means
Claim 4
Dependent Claim
17 words
and overlying said flange and releasably retaining saId tool adaptor on said tool holder C. release means
Claim 5
Dependent Claim
36 words
and adapted to rotate said locking member into and out of locking relationship with said tool adaptor; and D. means carried by said release means and adapted to normally urge said locking member into locked condition.
Claim 6
Dependent Claim
36 words
and adapted to rotate said locking member into and out of locking relationship with said tool adaptor; and D. means carried by said release means and adapted to normally urge said locking member into locked condition.
Claim 7
Dependent Claim
22 words
The device of claim 1 further characterized by the fact that said release means include an impact ring and a reaction ring.
Claim 8
Dependent Claim
30 words
The device of claim 2 further characterized by the fact that said means for urging said locking member into locking condition include a spring interconnecting said impact and reaction rings.
Claim 9
Dependent Claim
28 words
The device of claim 1 further characterized by means for interconnecting said locking means and said release means for selective movement in unison and relatively of each other.
Claim 10
Dependent Claim
51 words
The device of claim 2 further characterized by the presence of: A. first and second projections on said locking member; B. said impact ring having an arcuate cut-out area for reception of said first projection; and C. said reaction member having an arcuate cut-out area for reception of said second projection.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |