US3795158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jar lid remover
Assignee: Individual
•
Filing: 1972-12-07
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Granted: 1974-03-05
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Expires: 1992-12-07
Abstract
Abstract A jar lid remover for relatively unscrewing and separating threadedly engaged jar lids and jars and comprising a jar base clamp adjustable into clamping relationship with respect to the base of a jar and a jar lid clamp adjustably positioned directly above the jar base clamp for vertical adjustment to accommodate jars of different heights and arranged to be controllably clamped on the periphery of a threaded jar lid and then to be powerdriven in a jar-lid unscrewing direction and with the jar lid clamp means being of a type such that the forcible motorized application of lid-unscrewing torque actually increases the extent of the clamping engagement of the clamp means on the lid so as to positively prevent any torsional slippage during a jar lid unscrewing operation. In one preferred form, the jar base clamp means may be of the same type as that disclosed in connection with the jar lid engaging clamp means - that is, arranged to provide amplified clamp-engaging force as a result of the torque produced during a jar lid unscrewing operation.
Inventors
- 👤 R Morita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:48
CPC Classifications
B; B67; B67B; B67B3/00; B67B3/20; B67B3/2006; B67B3/2073; B67B7/00; B67B7/18; B67B7/182
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
377 words
A jar lid remover for relatively unscrewing and separating threadedly engaged jar lids and jars, comprising: a lower sizevariable jar base receiving, downwardly recessed base clamp means for receiving and clamping in a self-tightening, torsional forceexerting manner a substantially cylindrical jar base of any size within a size range lying between a predetermined minimum size and a predetermined maximum size; an upper size-variable jar lid receiving, upwardly recessed lid clamp means for receiving and clamping in a self-tightening torsional force-exerting manner a substantially cylindrical jar lid of any size within a size range lying between a predetermined minimum size and a predetermined maximum size; controllably operable, clamp-adjusting means for varying the size of each of said upper and lower clamp means; relative torque-applying means cooperable with respect to said clamp means for producing relatively oppositely directed torque between said upper and lower clamp means and a jar lid adapted to be clamped and engaged within said upper clamp means and a jar base adapted to be engaged and clamped within said lower clamp means for power-unscrewing such a jar lid from such a jar; said relative torque-applying means including a torque-applying motor means provided with and driving a vertically directed input shaft connected to one of said upper and lower clamp means and torqueresisting means provided with and driving a vertically directed input shaft controllably coupled to said other one of said upper and lower clamp means; and means mounting each of said upper and lower clamp means for rotation around a common, vertically directed axis of rotation on which such a jar lid and jar base are adapted to be vertically spacedly similarly centered, said relative torque-applying means being cooperable with respect to each of said clamp means in a manner such that relative reverse rotation of either of said upper or lower clamp means with respect to the corresponding input shaft in a relatively reverse direction from the driving direction of forward rotation of said corresponding input shaft during the production of said relatively oppositely directed torque between said upper and lower clamp means, causes a corresponding, self-tightening action of said corresponding upper or lower clamp means with respect to such a jar lid or jar base, respectively, adapted to be engaged and clamped therewithin.
Claim 2
Dependent Claim
377 words
A jar lid remover for relatively unscrewing and separating threadedly engaged jar lids and jars, comprising: a lower sizevariable jar base receiving, downwardly recessed base clamp means for receiving and clamping in a self-tightening, torsional forceexerting manner a substantially cylindrical jar base of any size within a size range lying between a predetermined minimum size and a predetermined maximum size; an upper size-variable jar lid receiving, upwardly recessed lid clamp means for receiving and clamping in a self-tightening torsional force-exerting manner a substantially cylindrical jar lid of any size within a size range lying between a predetermined minimum size and a predetermined maximum size; controllably operable, clamp-adjusting means for varying the size of each of said upper and lower clamp means; relative torque-applying means cooperable with respect to said clamp means for producing relatively oppositely directed torque between said upper and lower clamp means and a jar lid adapted to be clamped and engaged within said upper clamp means and a jar base adapted to be engaged and clamped within said lower clamp means for power-unscrewing such a jar lid from such a jar; said relative torque-applying means including a torque-applying motor means provided with and driving a vertically directed input shaft connected to one of said upper and lower clamp means and torqueresisting means provided with and driving a vertically directed input shaft controllably coupled to said other one of said upper and lower clamp means; and means mounting each of said upper and lower clamp means for rotation around a common, vertically directed axis of rotation on which such a jar lid and jar base are adapted to be vertically spacedly similarly centered, said relative torque-applying means being cooperable with respect to each of said clamp means in a manner such that relative reverse rotation of either of said upper or lower clamp means with respect to the corresponding input shaft in a relatively reverse direction from the driving direction of forward rotation of said corresponding input shaft during the production of said relatively oppositely directed torque between said upper and lower clamp means, causes a corresponding, self-tightening action of said corresponding upper or lower clamp means with respect to such a jar lid or jar base, respectively, adapted to be engaged and clamped therewithin.
Claim 3
Dependent Claim
318 words
Apparatus as defined in claim 1, wherein each of said receiving clamp means comprises a pair of spacedly opposed jaw members provided with frictional abutment means on inner surfaces thereof adapted to frictionally engage opposed arcuate portions of the circumference of a jar lid and jar base, respectively, with each set of said opposed jaw members being provided with corresponding upper and lower rotary-to-linear-movement converter means coupled in oppositely directed senses with respect to each jaw member of the corresponding one of the two different sets of jaw members and with the corresponding input shaft of the corresponding set of jaw members in a manner such that the application of torquE by way of said input shaft in a counterclockwise direction as viewed from above with respect to said upper clamp means and in a clockwise direction as viewed from above with respect to said lower clamp means will convert said relative oppositely directed torque of said two input shafts into similar inwardly directed motion of the two opposed jaw members of both the upper and lower sets of said jaw members toward each other and such that relatively reverse rotation of said upper clamp means in a clockwise direction as viewed from above with respect to said upper input shaft and such that relatively reverse rotation of said lower clamp means in a counter-clockwise direction as viewed from above with respect to said lower input shaft will, in each case, convert such reverse relative rotation of said upper or lower clamp means with respect to said upper or lower input shafts into inwardly directed, self-tightening clamping motion of the two opposed jaw members of said upper or lower sets of said jaw members, respectively, toward each other for enhancing the transmission of oppositely directed torque to corresponding jar lid and jar base portions of a jar adapted to be engaged between said upper and lower clamp means.
Claim 4
Dependent Claim
88 words
Apparatus as defined in claim 2, wherein said torque-applying motor means is positioned above said upper clamp means and is provided with reduction gearing means connected in driving relationship with respect to the upper one of said input shafts connected to the upper clamp means, and wherein said oppositely positioned torque-resisting means controlling the operation of the other one of said two clamp means is positioned below the lower clamp means and is coupled to the lower input shaft comprising the input member to said lower clamp means.
Claim 5
Dependent Claim
78 words
Apparatus as defined in claim 3, wherein said torque applying motor means is provided with a positionally vertically adjustable mounting collar receiving and mounting said motor means in vertically superimposed and spaced relationship above said upper clamp means which is above said lower clamp means with the input shaft to said upper clamp means extending downwardly from said motor means and being directly vertically superimposed but vertically spaced above the lower input shaft to the lower clamp means.
Claim 6
Dependent Claim
57 words
Apparatus as defined in claim 3, wherein said upper jaw lid receiving clamp means is downwardly directed and provided with and mounted on vertically adjustable mounting means including vertical mounting post means and slidable sleeve means cooperable for vertical movement downwardly until said jar lid receiving clamp means engages a jar lid which is to be removed.
Claim 7
Dependent Claim
54 words
Apparatus as defined in claim 5, wherein said motor means is provided with a mounting collar receiving and mounting said motor means with said input shaft vertically downwardly directed in laterally offset, substantially parallel spaced relationship with respect to said vertical mounting post means and directly superimposed above said upper and lower clamp means.
Claim 8
Dependent Claim
35 words
Apparatus as defined in claim 6, wherein said mounting collar is laterally connected to said slidable sleeve means which is vertically downwardly directed in encompassing relationship along a portion of said vertical mounting post means.
Claim 9
Dependent Claim
64 words
Apparatus as defined in claim 7, including vertical locking means for locking said vertically adjustable mounting means in any selected vertical position with said jar lid receiving clamp means in engagement with a jar lid which is to be removed and for subsequently locking said jar lid receiving clamp means in an upper inoperative position during periods of non-use and between successive use periods.
Claim 10
Dependent Claim
56 words
Apparatus as defined in claim 8, wherein said vertical locking means comprises a controllably operable locking cam carried by one of said two relatively vertically slidable members comprising said sleeve means and said mounting post means and forcibly engageable and cooperable with the other of said two relatively vertically slIdable members for temporarily vertically immobilizing same.
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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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |