Patent US3698168A successfully refreshed from Google Patents.
US3698168A
Expired / Lapsed
US
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Blade connecting means
Assignee: ELSIE VIOLA MOTT
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Filing: 1971-07-06
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Granted: 1972-10-17
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Expires: 1991-07-06
Abstract
Abstract Blade connecting means comprises a lug member and a retaining member. The lug member and retaining member are adapted to be secured to a mower shaft and to removably secure a mower blade to the mower shaft. The lug member has at least on one end a hook on which the blade is hung, and the retaining member normally engages and closes the hook of the lug member to retain the blade on the hook and, hence, on the shaft. The blade may be easily installed on or removed from the shaft by manipulating the blade to move the retaining member to a position where the hook is open, no tools being necessary to install or remove the blade.
Inventors
- 👤 Carl W Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:56
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/52; A01D34/535
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
102 words
Connecting means for connecting to a mower shaft a blade having an opening therein, comprising a lug member and a resilient retaining member, said lug member having a portion thereof adapted to be secured to the mower shaft, said lug member having a hook for engaging in said opening in said blade, said retaining member being adapted to be secured to the shaft and having a free end closing the opening of said hook for retaining said blade on said hook, said free end of said retaining member being displaceable from said lug member to permit installation and removal of said blade.
Claim 2
Dependent Claim
102 words
Connecting means for connecting to a mower shaft a blade having an opening therein, comprising a lug member and a resilient retaining member, said lug member having a portion thereof adapted to be secured to the mower shaft, said lug member having a hook for engaging in said opening in said blade, said retaining member being adapted to be secured to the shaft and having a free end closing the opening of said hook for retaining said blade on said hook, said free end of said retaining member being displaceable from said lug member to permit installation and removal of said blade.
Claim 3
Dependent Claim
34 words
Connecting means of claim 1, wherein said lug member has a pair of hooks extending from opposite ends thereof, and said retaining member has a pair of free ends extending from opposite ends thereof.
Claim 4
Dependent Claim
30 words
Connecting means of claim 1, wherein said retaining member and said portion of said lug member have center openings therein, said center openings being adapted to receive the mower shaft.
Claim 5
Dependent Claim
24 words
Connecting means of claim 1, further comprising a spacer adapted to be mounted on the shaft between said lug member and said retaining member.
Claim 6
Dependent Claim
33 words
Connecting means of claim 1, wherein the bend of said hook is located at the outer end of said lug member, and said free end of said retaining member extends toward said hook.
Claim 7
Dependent Claim
25 words
Connecting means of claim 5, wherein the free end of said retaining member underlies and is generally parallel to the end portion of said hook.
Claim 8
Dependent Claim
41 words
Connecting means of claim 1, wherein said blade is insertable between said hook of said lug member and said free end of said retaining member with said hook overlying said opening in said blade, said blade being pivotable onto said hook.
Claim 9
Dependent Claim
61 words
Connecting means of claim 1, having said blade mounted on said hook and said free end of said retaining member underlying and closing said hook, said blade being pivotable about the end edge of said free end to separate said free end from said hook, whereby said blade may be slid between said hook and said free end and be removed.
Claim 10
Dependent Claim
47 words
Connecting means of claim 8, in which said blade when mounted on said hook is turned to extend laterally of the axis of the shaft, said blade then being pivoted about the end edge of said free end and about an axis extending longitudinally of said blade.
Claim 11
Dependent Claim
41 words
Connecting means of claim 1, wherein a plurality of said connecting means are arranged generally co-axially with each other along said shaft, said lug member and said retaining member of each of said connecting means being axially spaced from each other.
Claim 12
Dependent Claim
46 words
Connecting means of claim 10, in which said retaining member of one of said connecting means is adjacent said lug member of the next connecting means, and a spacer is adapted to be mounted on the shaft between the members of each of said connecting means.
Claim 13
Dependent Claim
25 words
Connecting means of claim 11, wherein said hook of each connecting means extends toward said free end of said retaining member of said connecting means.
Claim 14
Dependent Claim
97 words
Connecting means for connecting a blade to a mower shaft comprising a mower shaft, a lug member, a retaining member, and a blade, said members being secured to said shaft, said lug member extending generally radially from said shaft and having a hook at its outer end, said hook being turned toward said shaft, said retaining member having a free end extending generally toward and into engagement with said hook, one of said members being resilient and disengageable from the other of said members, said blade having an opening therein and being removably secured on said hook.
Claim 15
Dependent Claim
97 words
Connecting means for connecting a blade to a mower shaft comprising a mower shaft, a lug member, a retaining member, and a blade, said members being secured to said shaft, said lug member extending generally radially from said shaft and having a hook at its outer end, said hook being turned toward said shaft, said retaining member having a free end extending generally toward and into engagement with said hook, one of said members being resilient and disengageable from the other of said members, said blade having an opening therein and being removably secured on said hook.
Claim 16
Dependent Claim
34 words
Connecting means of claim 13, wherein said lug member has a pair of hooks, said retaining member has a pair of free ends, and a blade may be secured on each of said hooks.
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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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |