Patent US4595307A successfully refreshed from Google Patents.
US4595307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable implement closure
Assignee: Individual
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Filing: 1984-11-01
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Granted: 1986-06-17
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Expires: 2004-11-01
Abstract
Abstract A protective closure for an implement such as a pencil or pen. The closure comprises a retractable sheath intended for an attached relation to the implement body portion. The sheath having fold means is shortened or contracted longitudinally to achieve an exposing position when opposing sections of the sheath are urged together, achieving an intermediate, cross-sectionally continuous fold thereby. The fold means is further adapted to self-retain.
Inventors
- 👤 Eugene L. Heyden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:05
CPC Classifications
B; B43; B43K; B43K23/00; B43K23/08; B43K23/12; B43K23/10; B43K24/00; B43K24/02; B43K24/026
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
255 words
A retractable closure for an implement having an elongated body portion and at least one end having work performance means, said closure comprising: an elongated tubular sheath of foldably resilient material defining a wall with an inner wall surface and an outer wall surface, said sheath also having a central axis and a centrally open region therein; a forward sheath section including forward communication means adapted for axial displacement from a normally enclosing position to an achieved exposing position with respect to said work performance means; a rearward sheath section including rearward communication means adapted to receive said end and said work performance means therethrough, said rearward sheath section also adapted to form an adherent relation to, and a degree of resistance to displacement from, at least a portion of said implement; fold means integral with said sheath in the vicinity of said rearward sheath section for adjusting the length of said sheath, said sheath thereby and thereat biased to fold upon itself into a fold bringing a portion of said forward sheath section and a portion of said rearward sheath section in overlapping position, said sheath contracting in length from an enclosing first position to an exposing second position with respect to said work performance means when attached to said implement, said work performance means extending through said forward communication means when so exposed; and, fold retaining means for retaining said sheath in said exposing second position, said fold retaining means retaining the folded state of said sheath when actuated to achieve said fold.
Claim 2
Dependent Claim
255 words
A retractable closure for an implement having an elongated body portion and at least one end having work performance means, said closure comprising: an elongated tubular sheath of foldably resilient material defining a wall with an inner wall surface and an outer wall surface, said sheath also having a central axis and a centrally open region therein; a forward sheath section including forward communication means adapted for axial displacement from a normally enclosing position to an achieved exposing position with respect to said work performance means; a rearward sheath section including rearward communication means adapted to receive said end and said work performance means therethrough, said rearward sheath section also adapted to form an adherent relation to, and a degree of resistance to displacement from, at least a portion of said implement; fold means integral with said sheath in the vicinity of said rearward sheath section for adjusting the length of said sheath, said sheath thereby and thereat biased to fold upon itself into a fold bringing a portion of said forward sheath section and a portion of said rearward sheath section in overlapping position, said sheath contracting in length from an enclosing first position to an exposing second position with respect to said work performance means when attached to said implement, said work performance means extending through said forward communication means when so exposed; and, fold retaining means for retaining said sheath in said exposing second position, said fold retaining means retaining the folded state of said sheath when actuated to achieve said fold.
Claim 3
Dependent Claim
43 words
The closure of claim 1, wherein said forward sheath section is conical in its forward part, said forward sheath section of conical configuration being largest in the direction of said rearward sheath section and smallest in the direction of said forward communication means.
Claim 4
Dependent Claim
31 words
The closure of claim 1, wherein said forward communication means comprises said forward sheath section providing an opening therein, said opening continuously open and located forwardmost in said forward sheath section.
Claim 5
Dependent Claim
39 words
The closure of claim 2, wherein said forward communication means comprises a plurality of approximating leaves, said leaves formed by separations forwardmost in said forward sheath section and separable to accommodate the work performance means of said implement therethrough.
Claim 6
Dependent Claim
20 words
The closure of claim 1, wherein said rearward sheath section extends in length a substantial distance from said fold means.
Claim 7
Dependent Claim
26 words
The closure of claim 1, wherein said adherent relation comprises a substantially snug fitting between said rearward sheath section and the body portion of said implement.
Claim 8
Dependent Claim
45 words
The closure of claim 6, wherein the rearward portion of said sheath is somewhat expansible, said adherent relation comprising a substantially snug fitting as accomplished by said rearward sheath section adapted to expand in allowance around the perimeter of the body portion of said implement.
Claim 9
Dependent Claim
34 words
The closure of claim 1, wherein said adherent relation comprises a first adherent relation to a supporting member, said supporting member for forming a second adherent relation to the body portion of said implement.
Claim 10
Dependent Claim
14 words
The closure of claim 8, wherein said supporting member is a retaining clip means.
Claim 11
Dependent Claim
94 words
The closure of claim 1, wherein the wall portion of said sheath is cross-sectionally continuous in the area providing said fold means, and said forward sheath section is cross-sectionally enlarged in a portion in the vicinity of said fold means with respect to said rearward sheath section, said fold means comprising a forwardly inclining wall portion of said sheath that inclines forwardly from said rearward sheath section to the enlarged portion of said sheath provided in said forward sheath section, said forwardly inclining wall portion folding backward in direction as said fold is achieved.
Claim 12
Dependent Claim
76 words
The closure of claim 10, wherein said forwardly inclining wall portion folds backward in direction to a cross-sectionally continuous fold when said forward sheath section and said rearward sheath section are urged together, said forwardly inclining wall portion substantially approximately its inner wall surface with that of a portion of said forward sheath section and, substantially approximating its outer wall surface with that of a portion of said rearward sheath section as said fold is achieved.
Claim 13
Dependent Claim
25 words
The closure of claim 1, wherein said fold retaining means comprises a wall portion of said sheath restrictively held between overlapping portions of said sheath.
Claim 14
Dependent Claim
28 words
The closure of claim 12, wherein said fold means is reversed from a retained state by directionally urging said forward sheath section and said rearward sheath section apart.
Claim 15
Dependent Claim
35 words
The closure of claim 1, wherein said implement is held by an operator, and said fold means is disposed along said sheath rearwardly a distance from an area normally held during use of said implement.
Claim 16
Dependent Claim
213 words
An implement comprising: an elongated body portion; a forward end having work performance means; a rearward end, said rearward end opposing said forward end; an elongated tubular sheath of foldably resilient material carried upon said implement in the vicinity of said forward end; said sheath including a forward sheath section and forward communication means in an extending first position and in spaced-apart and movable relation to said forward end and said work performance means; said sheath also having a rearward sheath section in a substantially adherent relation to at least a part of said implement; fold means integral with said sheath in the vicinity of said rearward sheath section for adjusting the length of said sheath, said sheath thereby and thereat biased to fold upon itself into a fold bringing a portion of said forward sheath section and a portion of said rearward sheath section in overlapping relation, said sheath contracting in length from an enclosing first position to an exposing said position with respect to said work performance means, said work performance means extending through said forward communication means when so exposed; and, fold retaining means for retaining said sheath in said exposing second position, said fold retaining means retaining the folded state of said sheath when actuated to achieve said fold.
Claim 17
Dependent Claim
213 words
An implement comprising: an elongated body portion; a forward end having work performance means; a rearward end, said rearward end opposing said forward end; an elongated tubular sheath of foldably resilient material carried upon said implement in the vicinity of said forward end; said sheath including a forward sheath section and forward communication means in an extending first position and in spaced-apart and movable relation to said forward end and said work performance means; said sheath also having a rearward sheath section in a substantially adherent relation to at least a part of said implement; fold means integral with said sheath in the vicinity of said rearward sheath section for adjusting the length of said sheath, said sheath thereby and thereat biased to fold upon itself into a fold bringing a portion of said forward sheath section and a portion of said rearward sheath section in overlapping relation, said sheath contracting in length from an enclosing first position to an exposing said position with respect to said work performance means, said work performance means extending through said forward communication means when so exposed; and, fold retaining means for retaining said sheath in said exposing second position, said fold retaining means retaining the folded state of said sheath when actuated to achieve said fold.
Claim 18
Dependent Claim
45 words
The implement of claim 15, wherein said forward sheath section is conical in configuration in its forward part, said forward sheath section of conical configuration being largest in the direction of said rearward sheath section and smallest in the direction of said forward communication means.
Claim 19
Dependent Claim
31 words
The implement of claim 15, wherein said forward communication means comprises said forward sheath section providing an opening therein, said opening continuously open and located forwardmost in said forward sheath section.
Claim 20
Dependent Claim
36 words
The implement of claim 16 wherein said forward communication means comprises a plurality of approximating leaves, said leaves formed by separations forwardmost in said forward sheath section and spreadable to accommodate said work performance means therethrough.
Claim 21
Dependent Claim
94 words
The implement of claim 15, wherein the wall portion of said sheath is cross-sectionally continuous in the area providing said fold means, and said forward sheath section is cross-sectionally enlarged in a portion of the vicinity of said fold means with respect to said rearward sheath section, said fold means comprising a forwardly inclining wall portion of said sheath that inclines forwardly from said rearward sheath section to the enlarged portion of said sheath provided in said forward sheath section, said forwardly inclining wall portion folding backward in direction as said fold is achieved.
Claim 22
Dependent Claim
25 words
The implement of claim 15, wherein said fold retaining means comprises a wall portion of said sheath respectively held between overlapping portions of said sheath.
Claim 23
Dependent Claim
28 words
The implement of claim 15, wherein said fold means is reversed from a retained state by directionally urging said forward sheath section and said rearward sheath section apart.
Claim 24
Dependent Claim
35 words
The implement of claim 15, wherein said implement is manually held during use, and said fold means is disposed along said sheath rearwardly a distance from an area normally held during use of said implement.
References Cited (Backward Citations)
US1291972A
Cited
US1550599A
Cited
US1598873A
Cited
US1839817A
Cited
US1714965A
Cited
US2388252A
Cited
US2479414A
Cited
US2559555A
Cited
BE510400A
Cited
FR1129142A
Cited
US2941511A
Cited
FR1252736A
Cited
US3061084A
Cited
US3311089A
Cited
US3480370A
Cited
US3759622A
Cited
US3740159A
Cited
DE2656346A1
Cited
US4459059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-16 | 1989-12-16 | 1990-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-16 | 1993-12-16 | 1994-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-16 | 1997-12-16 | 1998-06-17 | $7700.00 | Window Closed / Lapsed |