US3722932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connecting apparatus for tooth adapter assembly
Assignee: MINNEAPOLIS ELECTRIC STEEL CAS
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Filing: 1971-11-10
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Granted: 1973-03-27
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Expires: 1991-11-10
Abstract
Abstract Apparatus for removably connecting a digger tooth adapter to an excavating shovel. The adapter and lip of the shovel fit together in overriding relation, with openings in each aligning to form a passage which receives a C-shaped clamp and wedge. The back side of the C-clamp has a rectangular recess which receives a locking member. The locking member has an exposed face which is serrated, and it is urged out of the recess by a resilient mounting pad. The wedge also has a serrated face which mateably engages the locking member. To simplify removal of the adapter from the shovel, a longitudinal groove is formed in the engaging face of the wedge which extends through and below the serrations. A partial groove is formed in the C-clamp, and the grooves together guidably receive a spike therebetween which, upon insertion, separates the respective serrated faces and enables the wedge to be removed.
Inventors
- 👤 J Dougall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:02
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/02; F16B2/14; E; E02; E02F; E02F9/00; E02F9/28; E02F9/2808; E02F9/2816; E02F9/2833; E02F9/2841; F16B3/00; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44009; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7086; Y10T403/75
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
226 words
Apparatus for removably connecting separable parts, the parts fitting together in overlapping relation and each having an opening, the respective openings being alignable to form a continuous passage when the parts are brought together, the connecting apparatus comprising: a. an elongated block having projections extending laterally from either end, the projections being of such length as to permit insertion of tHe block into the continuous passage and spaced to receive one of the two parts therebetween; b. a wedge dimensioned for insertion into the passage in wedging relation between the block and the other of the two parts; c. one of said elongated block and wedge having an engaging face; d. the other of said elongated block and wedge having a recess intermediate its ends; e. a locking member having an engaging face disposed in the recess; f. means for resiliently urging the locking member from the recess; g. the respective engaging faces being constructed and arranged to mateably engage and to resist relative longitudinal movement between the elongated block and wedge; h. a longitudinal groove formed in at least one of said elongated block and wedge in relation to the associated engaging face; i. and a longitudinal wedging member sized for insertion into said groove to be guided thereby, the wedging member being shaped to separate said mateably engaging surfaces upon insertion into said groove.
Claim 2
Dependent Claim
226 words
Apparatus for removably connecting separable parts, the parts fitting together in overlapping relation and each having an opening, the respective openings being alignable to form a continuous passage when the parts are brought together, the connecting apparatus comprising: a. an elongated block having projections extending laterally from either end, the projections being of such length as to permit insertion of tHe block into the continuous passage and spaced to receive one of the two parts therebetween; b. a wedge dimensioned for insertion into the passage in wedging relation between the block and the other of the two parts; c. one of said elongated block and wedge having an engaging face; d. the other of said elongated block and wedge having a recess intermediate its ends; e. a locking member having an engaging face disposed in the recess; f. means for resiliently urging the locking member from the recess; g. the respective engaging faces being constructed and arranged to mateably engage and to resist relative longitudinal movement between the elongated block and wedge; h. a longitudinal groove formed in at least one of said elongated block and wedge in relation to the associated engaging face; i. and a longitudinal wedging member sized for insertion into said groove to be guided thereby, the wedging member being shaped to separate said mateably engaging surfaces upon insertion into said groove.
Claim 3
Dependent Claim
27 words
The apparatus defined by claim 1, wherein the longitudinal groove is formed in said one of the elongated block and wedge, extending through the engaging face thereof.
Claim 4
Dependent Claim
33 words
The apparatus defined by claim 1, wherein the longitudinal groove is formed in the other of said elongated block and wedge, the groove extending to and terminating at each side of the recess.
Claim 5
Dependent Claim
20 words
The apparatus defined by claim 1, wherein the groove is uniformly rectangular in cross-section, and the wedging member is tapered.
Claim 6
Dependent Claim
34 words
The apparatus defined by claim 1, wherein the mateable engaging faces are serrated, the serrations being angularly constructed and arranged to prevent removal of the wedge from a wedging position in said continuous passage.
Claim 7
Dependent Claim
31 words
The apparatus defined by claim 1, wherein a longitudinal groove is formed in each of said elongated block and wedge, the grooves being alignably disposed to guideably receive the wedging member.
Claim 8
Dependent Claim
22 words
The apparatus defined by claim 1, wherein the resilient urging means comprises a resilient pad disposed in the bottom of said recess.
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |